I am trying ssh localhost, using rsa keys, but the RSA authentication fails.
OS: CENTOS7
permissions: id.rsa 600, id_rsa.pub: 644, authorized keys: 600, ~/.ssh: 700
sshd_config file:
# $OpenBSD: sshd_config,v 1.100 2016/08/15 12:32:04 naddy Exp $
# This is the sshd server system-wide configuration file. See
# sshd_config(5) for more information.
# This sshd was compiled with PATH=/usr/local/bin:/usr/bin
# The strategy used for options in the default sshd_config shipped with
# OpenSSH is to specify options with their default value where
# possible, but leave them commented. Uncommented options override the
# default value.
# If you want to change the port on a SELinux system, you have to tell
# SELinux about this change.
# semanage port -a -t ssh_port_t -p tcp #PORTNUMBER
#
#Port 22
#AddressFamily any
#ListenAddress 0.0.0.0
#ListenAddress ::
HostKey /etc/ssh/ssh_host_rsa_key
#HostKey /etc/ssh/ssh_host_dsa_key
HostKey /etc/ssh/ssh_host_ecdsa_key
HostKey /etc/ssh/ssh_host_ed25519_key
# Ciphers and keying
#RekeyLimit default none
# Logging
#SyslogFacility AUTH
SyslogFacility AUTHPRIV
LogLevel DEBUG3
# Authentication:
#LoginGraceTime 2m
#PermitRootLogin yes
#StrictModes yes
#MaxAuthTries 6
#MaxSessions 10
#PubkeyAuthentication yes
# The default is to check both .ssh/authorized_keys and .ssh/authorized_keys2
# but this is overridden so installations will only check .ssh/authorized_keys
AuthorizedKeysFile .ssh/authorized_keys
#AuthorizedPrincipalsFile none
#AuthorizedKeysCommand none
AuthorizedKeysCommandUser nobody
# For this to work you will also need host keys in /etc/ssh/ssh_known_hosts
#HostbasedAuthentication no
# Change to yes if you don't trust ~/.ssh/known_hosts for
# HostbasedAuthentication
#IgnoreUserKnownHosts no
# Don't read the user's ~/.rhosts and ~/.shosts files
#IgnoreRhosts yes
# To disable tunneled clear text passwords, change to no here!
#PasswordAuthentication yes
#PermitEmptyPasswords no
PasswordAuthentication yes
# Change to no to disable s/key passwords
#ChallengeResponseAuthentication yes
ChallengeResponseAuthentication no
# Kerberos options
#KerberosAuthentication no
#KerberosOrLocalPasswd yes
#KerberosTicketCleanup yes
#KerberosGetAFSToken no
#KerberosUseKuserok yes
# GSSAPI options
GSSAPIAuthentication yes
GSSAPICleanupCredentials no
#GSSAPIStrictAcceptorCheck yes
#GSSAPIKeyExchange no
#GSSAPIEnablek5users no
# Set this to 'yes' to enable PAM authentication, account processing,
# and session processing. If this is enabled, PAM authentication will
# be allowed through the ChallengeResponseAuthentication and
# PasswordAuthentication. Depending on your PAM configuration,
# PAM authentication via ChallengeResponseAuthentication may bypass
# the setting of "PermitRootLogin without-password".
# If you just want the PAM account and session checks to run without
# PAM authentication, then enable this but set PasswordAuthentication
# and ChallengeResponseAuthentication to 'no'.
# WARNING: 'UsePAM no' is not supported in Red Hat Enterprise Linux and may cause several
# problems.
UsePAM yes
#AllowAgentForwarding yes
#AllowTcpForwarding yes
#GatewayPorts no
X11Forwarding yes
#X11DisplayOffset 10
#X11UseLocalhost yes
#PermitTTY yes
#PrintMotd yes
#PrintLastLog yes
#TCPKeepAlive yes
#UseLogin no
#UsePrivilegeSeparation sandbox
#PermitUserEnvironment no
#Compression delayed
#ClientAliveInterval 0
#ClientAliveCountMax 3
#ShowPatchLevel no
#UseDNS yes
#PidFile /var/run/sshd.pid
#MaxStartups 10:30:100
#PermitTunnel no
#ChrootDirectory none
#VersionAddendum none
# no default banner path
#Banner none
# Accept locale-related environment variables
AcceptEnv LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGES
AcceptEnv LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT
AcceptEnv LC_IDENTIFICATION LC_ALL LANGUAGE
AcceptEnv XMODIFIERS
# override default of no subsystems
Subsystem sftp /usr/libexec/openssh/sftp-server
# Example of overriding settings on a per-user basis
#Match User anoncvs
# X11Forwarding no
# AllowTcpForwarding no
# PermitTTY no
# ForceCommand cvs server
The result of ssh localhost is:
[testuser#TestSrv .ssh]$ ssh localhost -vvv
OpenSSH_7.4p1, OpenSSL 1.0.2k-fips 26 Jan 2017
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 58: Applying options for *
debug2: resolving "localhost" port 22
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to localhost [::1] port 22.
debug1: Connection established.
debug1: identity file /home/testuser/.ssh/id_rsa type 1
debug1: key_load_public: No such file or directory
debug1: identity file /home/testuser/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/testuser/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/testuser/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/testuser/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/testuser/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/testuser/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/testuser/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.4
debug1: Remote protocol version 2.0, remote software version OpenSSH_7.4
debug1: match: OpenSSH_7.4 pat OpenSSH* compat 0x04000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to localhost:22 as 'testuser'
debug3: hostkeys_foreach: reading file "/home/testuser/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/testuser/.ssh/known_hosts:1
debug3: load_hostkeys: loaded 1 keys from localhost
debug3: order_hostkeyalgs: prefer hostkeyalgs: ecdsa-sha2-nistp256-cert-v01#openssh.com,ecdsa-sha2-nistp384-cert-v01#openssh.com,ecdsa-sha2-nistp521-cert-v01#openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521
debug3: send packet: type 20
debug1: SSH2_MSG_KEXINIT sent
debug3: receive packet: type 20
debug1: SSH2_MSG_KEXINIT received
debug2: local client KEXINIT proposal
debug2: KEX algorithms: curve25519-sha256,curve25519-sha256#libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1,ext-info-c
debug2: host key algorithms: ecdsa-sha2-nistp256-cert-v01#openssh.com,ecdsa-sha2-nistp384-cert-v01#openssh.com,ecdsa-sha2-nistp521-cert-v01#openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519-cert-v01#openssh.com,ssh-rsa-cert-v01#openssh.com,ssh-dss-cert-v01#openssh.com,ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa,ssh-dss
debug2: ciphers ctos: chacha20-poly1305#openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm#openssh.com,aes256-gcm#openssh.com,aes128-cbc,aes192-cbc,aes256-cbc
debug2: ciphers stoc: chacha20-poly1305#openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm#openssh.com,aes256-gcm#openssh.com,aes128-cbc,aes192-cbc,aes256-cbc
debug2: MACs ctos: umac-64-etm#openssh.com,umac-128-etm#openssh.com,hmac-sha2-256-etm#openssh.com,hmac-sha2-512-etm#openssh.com,hmac-sha1-etm#openssh.com,umac-64#openssh.com,umac-128#openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: umac-64-etm#openssh.com,umac-128-etm#openssh.com,hmac-sha2-256-etm#openssh.com,hmac-sha2-512-etm#openssh.com,hmac-sha1-etm#openssh.com,umac-64#openssh.com,umac-128#openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,zlib#openssh.com,zlib
debug2: compression stoc: none,zlib#openssh.com,zlib
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug2: peer server KEXINIT proposal
debug2: KEX algorithms: curve25519-sha256,curve25519-sha256#libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
debug2: host key algorithms: ssh-rsa,rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256,ssh-ed25519
debug2: ciphers ctos: chacha20-poly1305#openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm#openssh.com,aes256-gcm#openssh.com,aes128-cbc,aes192-cbc,aes256-cbc,blowfish-cbc,cast128-cbc,3des-cbc
debug2: ciphers stoc: chacha20-poly1305#openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm#openssh.com,aes256-gcm#openssh.com,aes128-cbc,aes192-cbc,aes256-cbc,blowfish-cbc,cast128-cbc,3des-cbc
debug2: MACs ctos: umac-64-etm#openssh.com,umac-128-etm#openssh.com,hmac-sha2-256-etm#openssh.com,hmac-sha2-512-etm#openssh.com,hmac-sha1-etm#openssh.com,umac-64#openssh.com,umac-128#openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: umac-64-etm#openssh.com,umac-128-etm#openssh.com,hmac-sha2-256-etm#openssh.com,hmac-sha2-512-etm#openssh.com,hmac-sha1-etm#openssh.com,umac-64#openssh.com,umac-128#openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,zlib#openssh.com
debug2: compression stoc: none,zlib#openssh.com
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug1: kex: algorithm: curve25519-sha256
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: chacha20-poly1305#openssh.com MAC: <implicit> compression: none
debug1: kex: client->server cipher: chacha20-poly1305#openssh.com MAC: <implicit> compression: none
debug1: kex: curve25519-sha256 need=64 dh_need=64
debug1: kex: curve25519-sha256 need=64 dh_need=64
debug3: send packet: type 30
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug3: receive packet: type 31
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:w3lmXqqYYQ/7Y74+vjM5rbonYaECWS0uZ8S/ktNcmRs
debug3: hostkeys_foreach: reading file "/home/testuser/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/testuser/.ssh/known_hosts:1
debug3: load_hostkeys: loaded 1 keys from localhost
debug1: Host 'localhost' is known and matches the ECDSA host key.
debug1: Found key in /home/testuser/.ssh/known_hosts:1
debug3: send packet: type 21
debug2: set_newkeys: mode 1
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug3: receive packet: type 21
debug1: SSH2_MSG_NEWKEYS received
debug2: set_newkeys: mode 0
debug1: rekey after 134217728 blocks
debug2: key: /home/testuser/.ssh/id_rsa (0x55d43d8e2650)
debug2: key: /home/testuser/.ssh/id_dsa ((nil))
debug2: key: /home/testuser/.ssh/id_ecdsa ((nil))
debug2: key: /home/testuser/.ssh/id_ed25519 ((nil))
debug3: send packet: type 5
debug3: receive packet: type 7
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<rsa-sha2-256,rsa-sha2-512>
debug3: receive packet: type 6
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug3: send packet: type 50
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password
debug3: start over, passed a different list publickey,gssapi-keyex,gssapi-with-mic,password
debug3: preferred gssapi-keyex,gssapi-with-mic,publickey,keyboard-interactive,password
debug3: authmethod_lookup gssapi-keyex
debug3: remaining preferred: gssapi-with-mic,publickey,keyboard-interactive,password
debug3: authmethod_is_enabled gssapi-keyex
debug1: Next authentication method: gssapi-keyex
debug1: No valid Key exchange context
debug2: we did not send a packet, disable method
debug3: authmethod_lookup gssapi-with-mic
debug3: remaining preferred: publickey,keyboard-interactive,password
debug3: authmethod_is_enabled gssapi-with-mic
debug1: Next authentication method: gssapi-with-mic
debug1: Unspecified GSS failure. Minor code may provide more information
No Kerberos credentials available (default cache: KEYRING:persistent:1000)
debug1: Unspecified GSS failure. Minor code may provide more information
No Kerberos credentials available (default cache: KEYRING:persistent:1000)
debug2: we did not send a packet, disable method
debug3: authmethod_lookup publickey
debug3: remaining preferred: keyboard-interactive,password
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Offering RSA public key: /home/testuser/.ssh/id_rsa
debug3: send_pubkey_test
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password
debug1: Trying private key: /home/testuser/.ssh/id_dsa
debug3: no such identity: /home/testuser/.ssh/id_dsa: No such file or directory
debug1: Trying private key: /home/testuser/.ssh/id_ecdsa
debug3: no such identity: /home/testuser/.ssh/id_ecdsa: No such file or directory
debug1: Trying private key: /home/testuser/.ssh/id_ed25519
debug3: no such identity: /home/testuser/.ssh/id_ed25519: No such file or directory
debug2: we did not send a packet, disable method
debug3: authmethod_lookup password
debug3: remaining preferred: ,password
debug3: authmethod_is_enabled password
debug1: Next authentication method: password
testuser#localhost's password:
RSA authentication should succeed, since the permission seems correct, the key pair matches, and the sshd_config seems well configured. Any ideas please?
Finally solved. It had to do with SELINUX configuration:
Edit /etc/sysconfig/selinux file as follows:
....
# SELINUX=enforcing
SELINUX=disabled
....
Related
I'm trying to ssh remote port forwarding with local:MacOS monterey and remote:Pop-os.
The following command works without any error in local machine.
(local)ssh user#ubuntu.com 8080:localhost:22
But, I can't connect localhost as following command on the remote machine although command ssh localhost works correctly. I have added public key(id_rsa.pub) to authorized_keys.
(remote)ssh localhost -p 8080
Error output is follows:
debug3: order_hostkeyalgs: have matching best-preference key type ecdsa-sha2-nistp256-cert-v01#openssh.com, using HostkeyAlgorithms verbatim
debug3: send packet: type 20
debug1: SSH2_MSG_KEXINIT sent
debug3: receive packet: type 20
debug1: SSH2_MSG_KEXINIT received
debug2: local client KEXINIT proposal
debug2: KEX algorithms: curve25519-sha256,curve25519-sha256#libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256,ext-info-c
debug2: host key algorithms: ecdsa-sha2-nistp256-cert-v01#openssh.com,ecdsa-sha2-nistp384-cert-v01#openssh.com,ecdsa-sha2-nistp521-cert-v01#openssh.com,sk-ecdsa-sha2-nistp256-cert-v01#openssh.com,ssh-ed25519-cert-v01#openssh.com,sk-ssh-ed25519-cert-v01#openssh.com,rsa-sha2-512-cert-v01#openssh.com,rsa-sha2-256-cert-v01#openssh.com,ssh-rsa-cert-v01#openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,sk-ecdsa-sha2-nistp256#openssh.com,ssh-ed25519,sk-ssh-ed25519#openssh.com,rsa-sha2-512,rsa-sha2-256,ssh-rsa
debug2: ciphers ctos: chacha20-poly1305#openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm#openssh.com,aes256-gcm#openssh.com
debug2: ciphers stoc: chacha20-poly1305#openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm#openssh.com,aes256-gcm#openssh.com
debug2: MACs ctos: umac-64-etm#openssh.com,umac-128-etm#openssh.com,hmac-sha2-256-etm#openssh.com,hmac-sha2-512-etm#openssh.com,hmac-sha1-etm#openssh.com,umac-64#openssh.com,umac-128#openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: umac-64-etm#openssh.com,umac-128-etm#openssh.com,hmac-sha2-256-etm#openssh.com,hmac-sha2-512-etm#openssh.com,hmac-sha1-etm#openssh.com,umac-64#openssh.com,umac-128#openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,zlib#openssh.com,zlib
debug2: compression stoc: none,zlib#openssh.com,zlib
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug2: peer server KEXINIT proposal
debug2: KEX algorithms: curve25519-sha256,curve25519-sha256#libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256
debug2: host key algorithms: rsa-sha2-512,rsa-sha2-256,ssh-rsa,ecdsa-sha2-nistp256,ssh-ed25519
debug2: ciphers ctos: chacha20-poly1305#openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm#openssh.com,aes256-gcm#openssh.com
debug2: ciphers stoc: chacha20-poly1305#openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm#openssh.com,aes256-gcm#openssh.com
debug2: MACs ctos: umac-64-etm#openssh.com,umac-128-etm#openssh.com,hmac-sha2-256-etm#openssh.com,hmac-sha2-512-etm#openssh.com,hmac-sha1-etm#openssh.com,umac-64#openssh.com,umac-128#openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: umac-64-etm#openssh.com,umac-128-etm#openssh.com,hmac-sha2-256-etm#openssh.com,hmac-sha2-512-etm#openssh.com,hmac-sha1-etm#openssh.com,umac-64#openssh.com,umac-128#openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,zlib#openssh.com
debug2: compression stoc: none,zlib#openssh.com
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug1: kex: algorithm: curve25519-sha256
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: chacha20-poly1305#openssh.com MAC: <implicit> compression: none
debug1: kex: client->server cipher: chacha20-poly1305#openssh.com MAC: <implicit> compression: none
debug3: send packet: type 30
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug3: receive packet: type 31
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:jdbEN5TMFbH9922RDQNRPIfy1kF7FeQOx4
debug3: put_host_port: [::1]:8080
debug3: put_host_port: [localhost]:8080
debug3: hostkeys_foreach: reading file "/home/user/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/user/.ssh/known_hosts:3
debug3: load_hostkeys: loaded 1 keys from [localhost]:8080
debug1: Host '[localhost]:8080' is known and matches the ECDSA host key.
debug1: Found key in /home/user/.ssh/known_hosts:3
debug3: send packet: type 21
debug2: set_newkeys: mode 1
debug1: rekey out after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug3: receive packet: type 21
debug1: SSH2_MSG_NEWKEYS received
debug2: set_newkeys: mode 0
debug1: rekey in after 134217728 blocks
debug1: Will attempt key: id_rsa RSA SHA256:IskBniNlHHFu1INqiUbu/zydbVfThRd76PMA explicit agent
debug2: pubkey_prepare: done
debug3: send packet: type 5
debug3: receive packet: type 7
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<ssh-ed25519,sk-ssh-ed25519#openssh.com,ssh-rsa,rsa-sha2-256,rsa-sha2-512,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,sk-ecdsa-sha2-nistp256#openssh.com,webauthn-sk-ecdsa-sha2-nistp256#openssh.com>
debug3: receive packet: type 6
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug3: send packet: type 50
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey
debug3: start over, passed a different list publickey
debug3: preferred gssapi-with-mic,publickey,keyboard-interactive,password
debug3: authmethod_lookup publickey
debug3: remaining preferred: keyboard-interactive,password
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Offering public key: id_rsa RSA SHA256:T4RgPyIskBniNlHFu1INqicUbu/zydbVfThRd76PMA explicit agent
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey
debug2: we did not send a packet, disable method
debug1: No more authentication methods to try.
user#localhost: Permission denied (publickey).
user#pop-os ~/.ssh [255]> ssh user#localhost -p 8080 -v
OpenSSH_8.4p1 Ubuntu-6ubuntu2.1, OpenSSL 1.1.1l 24 Aug 2021
debug1: Reading configuration data /home/user/.ssh/config
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: include /etc/ssh/ssh_config.d/*.conf matched no files
debug1: /etc/ssh/ssh_config line 21: Applying options for *
debug1: Connecting to localhost [::1] port 8080.
debug1: Connection established.
debug1: identity file /home/user/.ssh/id_rsa type 0
debug1: identity file /home/user/.ssh/id_rsa-cert type -1
debug1: identity file /home/user/.ssh/id_dsa type -1
debug1: identity file /home/user/.ssh/id_dsa-cert type -1
debug1: identity file /home/user/.ssh/id_ecdsa type -1
debug1: identity file /home/user/.ssh/id_ecdsa-cert type -1
debug1: identity file /home/user/.ssh/id_ecdsa_sk type -1
debug1: identity file /home/user/.ssh/id_ecdsa_sk-cert type -1
debug1: identity file /home/user/.ssh/id_ed25519 type -1
debug1: identity file /home/user/.ssh/id_ed25519-cert type -1
debug1: identity file /home/user/.ssh/id_ed25519_sk type -1
debug1: identity file /home/user/.ssh/id_ed25519_sk-cert type -1
debug1: identity file /home/user/.ssh/id_xmss type -1
debug1: identity file /home/user/.ssh/id_xmss-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_8.4p1 Ubuntu-6ubuntu2.1
debug1: Remote protocol version 2.0, remote software version OpenSSH_8.6
debug1: match: OpenSSH_8.6 pat OpenSSH* compat 0x04000000
debug1: Authenticating to localhost:8080 as 'user'
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: algorithm: curve25519-sha256
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: chacha20-poly1305#openssh.com MAC: <implicit> compression: none
debug1: kex: client->server cipher: chacha20-poly1305#openssh.com MAC: <implicit> compression: none
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:+e+xjdbEN5TMFbH992RDQNRPIfy1kF7FeQOx4
debug1: Host '[localhost]:8080' is known and matches the ECDSA host key.
debug1: Found key in /home/user/.ssh/known_hosts:3
debug1: rekey out after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: rekey in after 134217728 blocks
debug1: Will attempt key: /home/user/.ssh/id_rsa RSA SHA256:skBniNlHHFu1INqicUbu/zydbVfThRd76PMA agent
debug1: Will attempt key: /home/user/.ssh/id_dsa
debug1: Will attempt key: /home/user/.ssh/id_ecdsa
debug1: Will attempt key: /home/user/.ssh/id_ecdsa_sk
debug1: Will attempt key: /home/user/.ssh/id_ed25519
debug1: Will attempt key: /home/user/.ssh/id_ed25519_sk
debug1: Will attempt key: /home/user/.ssh/id_xmss
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<ssh-ed25519,sk-ssh-ed25519#openssh.com,ssh-rsa,rsa-sha2-256,rsa-sha2-512,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,sk-ecdsa-sha2-nistp256#openssh.com,webauthn-sk-ecdsa-sha2-nistp256#openssh.com>
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey
debug1: Next authentication method: publickey
debug1: Offering public key: /home/user/.ssh/id_rsa RSA SHA256:skBniNlHHFu1INqicUbu/zydbVfThRd76PMA agent
debug1: Authentications that can continue: publickey
debug1: Trying private key: /home/user/.ssh/id_dsa
debug1: Trying private key: /home/user/.ssh/id_ecdsa
debug1: Trying private key: /home/user/.ssh/id_ecdsa_sk
debug1: Trying private key: /home/user/.ssh/id_ed25519
debug1: Trying private key: /home/user/.ssh/id_ed25519_sk
debug1: Trying private key: /home/user/.ssh/id_xmss
debug1: No more authentication methods to try.
user#localhost: Permission denied (publickey).
/var/log/auth.log is just follows:
pop-os CRON[695404]: pam_unix(cron:session): session opened for user user by (uid=0)
pop-os CRON[695404]: pam_unix(cron:session): session closed for user user
How to fix this problem?
PS: my /etc/ssh/sshd_config is follows:
# $OpenBSD: sshd_config,v 1.103 2018/04/09 20:41:22 tj Exp $
# This is the sshd server system-wide configuration file. See
# sshd_config(5) for more information.
# This sshd was compiled with PATH=/usr/bin:/bin:/usr/sbin:/sbin
# The strategy used for options in the default sshd_config shipped with
# OpenSSH is to specify options with their default value where
# possible, but leave them commented. Uncommented options override the
# default value.
Include /etc/ssh/sshd_config.d/*.conf
Port 22
#AddressFamily any
#ListenAddress 0.0.0.0
#ListenAddress ::
#HostKey /etc/ssh/ssh_host_rsa_key
#HostKey /etc/ssh/ssh_host_ecdsa_key
#HostKey /etc/ssh/ssh_host_ed25519_key
# Ciphers and keying
#RekeyLimit default none
# Logging
#SyslogFacility AUTH
#LogLevel INFO
# Authentication:
#LoginGraceTime 2m
#PermitRootLogin prohibit-password
#StrictModes yes
#MaxAuthTries 6
#MaxSessions 10
#PubkeyAuthentication yes
# Expect .ssh/authorized_keys2 to be disregarded by default in future.
#AuthorizedKeysFile .ssh/authorized_keys .ssh/authorized_keys2
#AuthorizedPrincipalsFile none
#AuthorizedKeysCommand none
#AuthorizedKeysCommandUser nobody
# For this to work you will also need host keys in /etc/ssh/ssh_known_hosts
#HostbasedAuthentication no
# Change to yes if you don't trust ~/.ssh/known_hosts for
# HostbasedAuthentication
#IgnoreUserKnownHosts no
# Don't read the user's ~/.rhosts and ~/.shosts files
#IgnoreRhosts yes
# To disable tunneled clear text passwords, change to no here!
PasswordAuthentication no
#PermitEmptyPasswords no
# Change to yes to enable challenge-response passwords (beware issues with
# some PAM modules and threads)
ChallengeResponseAuthentication no
# Kerberos options
#KerberosAuthentication no
#KerberosOrLocalPasswd yes
#KerberosTicketCleanup yes
#KerberosGetAFSToken no
# GSSAPI options
#GSSAPIAuthentication no
#GSSAPICleanupCredentials yes
#GSSAPIStrictAcceptorCheck yes
#GSSAPIKeyExchange no
# Set this to 'yes' to enable PAM authentication, account processing,
# and session processing. If this is enabled, PAM authentication will
# be allowed through the ChallengeResponseAuthentication and
# PasswordAuthentication. Depending on your PAM configuration,
# PAM authentication via ChallengeResponseAuthentication may bypass
# the setting of "PermitRootLogin without-password".
# If you just want the PAM account and session checks to run without
# PAM authentication, then enable this but set PasswordAuthentication
# and ChallengeResponseAuthentication to 'no'.
UsePAM yes
#AllowAgentForwarding yes
#AllowTcpForwarding yes
#GatewayPorts no
X11Forwarding yes
#X11DisplayOffset 10
#X11UseLocalhost yes
#PermitTTY yes
PrintMotd no
#PrintLastLog yes
#TCPKeepAlive yes
#PermitUserEnvironment no
#Compression delayed
#ClientAliveInterval 0
#ClientAliveCountMax 3
#UseDNS no
#PidFile /var/run/sshd.pid
#MaxStartups 10:30:100
#PermitTunnel no
#ChrootDirectory none
#VersionAddendum none
# no default banner path
#Banner none
# Allow client to pass locale environment variables
AcceptEnv LANG LC_*
# override default of no subsystems
Subsystem sftp /usr/lib/openssh/sftp-server
# Example of overriding settings on a per-user basis
#Match User anoncvs
# X11Forwarding no
# AllowTcpForwarding no
# PermitTTY no
# ForceCommand cvs server
I am following the Google Cloud Shell REST API documentation here which shows using the users.environments.publicKeys.create method to add a SSH public key to my Cloud Shell.
I have used ssh-keygen to generate a public/private key pair and have successfully added the public key to my Cloud Shell using this API. After doing so I can confirm that the public key is accessible by using the users.environments.get method to get the details for my shell which shows this public key.
Whenever I try to SSH to my Cloud Shell using the corresponding private key I get the error Permission denied (publickey).
I have tried using the same public/private key pair to connect to other servers and it works fine, so this would rule out the keys being an issue.
I have tried connecting from multiple Windows and Linux clients to rule out any issues with local file permissions, but no luck.
I have tried multiple keys but get the same result.
Here is the output of me trying to connect via SSH from a Ubuntu machine:
ssh -i .ssh/id_rsa -p 6000 user#devshell-vm-xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx.cloudshell.dev -vvv
OpenSSH_7.2p2 Ubuntu-4ubuntu2.8, OpenSSL 1.0.2g 1 Mar 2016
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug2: resolving "devshell-vm-xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx.cloudshell.dev" port 6000
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to devshell-vm-xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx.cloudshell.dev [xx.xx.xx.xx] port 6000.
debug1: Connection established.
debug1: identity file .ssh/id_rsa type 1
debug1: key_load_public: No such file or directory
debug1: identity file .ssh/id_rsa-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.2p2 Ubuntu-4ubuntu2.8
debug1: Remote protocol version 2.0, remote software version OpenSSH_7.4p1 Debian-10+deb9u6
debug1: match: OpenSSH_7.4p1 Debian-10+deb9u6 pat OpenSSH* compat 0x04000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to devshell-vm-xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx.cloudshell.dev:6000 as 'user'
debug3: put_host_port: [devshell-vm-xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx.cloudshell.dev]:6000
debug3: hostkeys_foreach: reading file "/home/local_user/.ssh/known_hosts"
debug3: record_hostkey: found key type RSA in file /home/local_user/.ssh/known_hosts:1
debug3: load_hostkeys: loaded 1 keys from [devshell-vm-xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx.cloudshell.dev]:6000
debug3: order_hostkeyalgs: prefer hostkeyalgs: ssh-rsa-cert-v01#openssh.com,rsa-sha2-512,rsa-sha2-256,ssh-rsa
debug3: send packet: type 20
debug1: SSH2_MSG_KEXINIT sent
debug3: receive packet: type 20
debug1: SSH2_MSG_KEXINIT received
debug2: local client KEXINIT proposal
debug2: KEX algorithms: curve25519-sha256#libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,ext-info-c
debug2: host key algorithms: ssh-rsa-cert-v01#openssh.com,rsa-sha2-512,rsa-sha2-256,ssh-rsa,ecdsa-sha2-nistp256-cert-v01#openssh.com,ecdsa-sha2-nistp384-cert-v01#openssh.com,ecdsa-sha2-nistp521-cert-v01#openssh.com,ssh-ed25519-cert-v01#openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519
debug2: ciphers ctos: chacha20-poly1305#openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm#openssh.com,aes256-gcm#openssh.com,aes128-cbc,aes192-cbc,aes256-cbc,3des-cbc
debug2: ciphers stoc: chacha20-poly1305#openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm#openssh.com,aes256-gcm#openssh.com,aes128-cbc,aes192-cbc,aes256-cbc,3des-cbc
debug2: MACs ctos: umac-64-etm#openssh.com,umac-128-etm#openssh.com,hmac-sha2-256-etm#openssh.com,hmac-sha2-512-etm#openssh.com,hmac-sha1-etm#openssh.com,umac-64#openssh.com,umac-128#openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: umac-64-etm#openssh.com,umac-128-etm#openssh.com,hmac-sha2-256-etm#openssh.com,hmac-sha2-512-etm#openssh.com,hmac-sha1-etm#openssh.com,umac-64#openssh.com,umac-128#openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,zlib#openssh.com,zlib
debug2: compression stoc: none,zlib#openssh.com,zlib
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug2: peer server KEXINIT proposal
debug2: KEX algorithms: curve25519-sha256,curve25519-sha256#libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1
debug2: host key algorithms: ssh-rsa,rsa-sha2-512,rsa-sha2-256
debug2: ciphers ctos: chacha20-poly1305#openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm#openssh.com,aes256-gcm#openssh.com
debug2: ciphers stoc: chacha20-poly1305#openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm#openssh.com,aes256-gcm#openssh.com
debug2: MACs ctos: hmac-md5,umac-64-etm#openssh.com,umac-128-etm#openssh.com,hmac-sha2-256-etm#openssh.com,hmac-sha2-512-etm#openssh.com,hmac-sha1-etm#openssh.com,umac-64#openssh.com,umac-128#openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: hmac-md5,umac-64-etm#openssh.com,umac-128-etm#openssh.com,hmac-sha2-256-etm#openssh.com,hmac-sha2-512-etm#openssh.com,hmac-sha1-etm#openssh.com,umac-64#openssh.com,umac-128#openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,zlib#openssh.com
debug2: compression stoc: none,zlib#openssh.com
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug1: kex: algorithm: curve25519-sha256#libssh.org
debug1: kex: host key algorithm: rsa-sha2-512
debug1: kex: server->client cipher: chacha20-poly1305#openssh.com MAC: <implicit> compression: none
debug1: kex: client->server cipher: chacha20-poly1305#openssh.com MAC: <implicit> compression: none
debug3: send packet: type 30
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug3: receive packet: type 31
debug1: Server host key: ssh-rsa SHA256:oaU6VCSAN/xtJF6bMyDpuffYo6Cqsqsv44JsJ5Z/5/4
debug3: put_host_port: [xx.xx.xx.xx]:6000
debug3: put_host_port: [devshell-vm-xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx.cloudshell.dev]:6000
debug3: hostkeys_foreach: reading file "/home/local_user/.ssh/known_hosts"
debug3: record_hostkey: found key type RSA in file /home/local_user/.ssh/known_hosts:1
debug3: load_hostkeys: loaded 1 keys from [devshell-vm-xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx.cloudshell.dev]:6000
debug3: hostkeys_foreach: reading file "/home/local_user/.ssh/known_hosts"
debug3: record_hostkey: found key type RSA in file /home/local_user/.ssh/known_hosts:2
debug3: load_hostkeys: loaded 1 keys from [xx.xx.xx.xx]:6000
debug1: Host '[devshell-vm-xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx.cloudshell.dev]:6000' is known and matches the RSA host key.
debug1: Found key in /home/local_user/.ssh/known_hosts:1
debug3: send packet: type 21
debug2: set_newkeys: mode 1
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug3: receive packet: type 21
debug1: SSH2_MSG_NEWKEYS received
debug2: set_newkeys: mode 0
debug1: rekey after 134217728 blocks
debug2: key: .ssh/id_rsa (0x56066a887910), explicit
debug3: send packet: type 5
debug3: receive packet: type 7
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<ssh-ed25519,ssh-rsa,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521>
debug3: receive packet: type 6
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug3: send packet: type 50
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey
debug3: start over, passed a different list publickey
debug3: preferred gssapi-keyex,gssapi-with-mic,publickey,keyboard-interactive,password
debug3: authmethod_lookup publickey
debug3: remaining preferred: keyboard-interactive,password
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Offering RSA public key: .ssh/id_rsa
debug3: send_pubkey_test
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey
debug2: we did not send a packet, disable method
debug1: No more authentication methods to try.
Permission denied (publickey).
EDIT:
Result of sudo grep -i ssh /var/log/auth.log run from within my cloud shell:
sshd[569]: rexec line 33: Deprecated option KeyRegenerationInterval
sshd[569]: rexec line 34: Deprecated option ServerKeyBits
sshd[569]: rexec line 45: Deprecated option RSAAuthentication
sshd[569]: rexec line 52: Deprecated option RhostsRSAAuthentication
sshd[569]: reprocess config line 45: Deprecated option RSAAuthentication sshd[569]: reprocess config line 52: Deprecated option RhostsRSAAuthentication sshd[569]: error: Received disconnect from xx.xx.xx.xx port 54590:14: No supported authentication methods available [preauth]
sshd[569]: Disconnected from xx.xx.xx.xx port 54590 [preauth
I have verified that the private key is not corrupted
I have verified that the user name I am connecting with matches that which cloud shell is expecting
I have verified that the authorized_keys file on the Cloud Shell system has permissions "rw-r-r" (result is -rw-r--r-- 1 root root 2584 Aug 26 12:08 /etc/ssh/keys/authorized_keys)
[UPDATE]
Run these commands which use the alpha SDK to generate/install an SSH key:
gcloud components install alpha
gcloud alpha cloud-shell ssh --dry-run
Then you can use the SSH key file ~/.ssh/google_compute_engine.
If this works, then your SSH key is the problem.
[END UPDATE]
In your debug output, line 87 and 88:
debug3: send packet: type 50
debug3: receive packet: type 51
Line 87 means "user auth request".
Line 88 means "user auth failure".
The SSH server has rejected your SSH key.
Run this command in Cloud Shell to see the log for SSHD. You should see the exact error why your SSH key was rejected:
sudo grep -i ssh /var/log/auth.log
Possible problems/solutions:
Corrupted Private Key on your local system.
Private Key does not match the remote system Public Key in authorized_keys.
The user name "user" does not match the remote system.
Incorrect file permissions on remote system authorized_keys ( should be 0644 - "rw-r-r")
OpenSSH server cannot read authorized_keys (missing read file permission).
Note: Make sure that your private key (.ssh/id_rsa) is only readable by you (no write permissions for anyone, no read permissions for anyone else but you) - 0400.
I'm new to ansible, maybe someone can help me with this configuration.
I have an inventory of multiple servers. SSH access to these servers is secured using PEM key files.
I have a playbook and want to change the ansible ssh user (default devops) to root if user devops on the remote host not exists. The root access should be done by using username and password.
This is my playbook:
- name: Deploy "devops" user on my_new_hosts
hosts: my_new_hosts
gather_facts: false
tasks:
- name: Test User "devops"
local_action: "command ssh -q -o BatchMode=yes -o ConnectTimeout=3 {{ inventory_hostname }} 'echo ok'"
register: test_devops
ignore_errors: true
changed_when: false
- name: Create User "devops"
remote_user: "{{ test_devops | success | ternary(omit, 'root') }}"
user:
name: "devops"
update_password: on_create
groups: "sudo"
append: yes
shell: "/bin/bash"
skeleton: "/etc/skel"
create_home: yes
I followed the instructions regarding in this post : Ansible: Check if my user exists on remote host, else use root user to connect with ssh
I'm using local ssh-agent for keeping my password for user devops. How is it possible to force the ask_pass command for root?
TASK [Create User "devops"] ****************************************************
task path: /etc/ansible/playbooks/cms_deploy_user_devops_with_root.yml:13
Using module file /usr/lib/python2.7/dist-packages/ansible/modules/core/system/user.py
<my-host> ESTABLISH SSH CONNECTION FOR USER: root
<my-host> SSH: EXEC ssh -vvv -C -o ControlMaster=auto -o ControlPersist=60s -o StrictHostKeyChecking=no -o KbdInteractiveAuthentication=no -o PreferredAuthentications=gssapi-with-mic,gssapi-keyex,hostbased,publickey -o PasswordAuthentication=no -o User=root -o ConnectTimeout=10 -o ControlPath=/home/devops/.ansible/cp/ansible-ssh-%h-%p-%r my-host '/bin/sh -c '"'"'( umask 77 && mkdir -p "` echo ~/.ansible/tmp/ansible-tmp-1529062422.28-123292817615678 `" && echo ansible-tmp-1529062422.28-123292817615678="` echo ~/.ansible/tmp/ansible-tmp-1529062422.28-123292817615678 `" ) && sleep 0'"'"''
fatal: [my-host]: UNREACHABLE! => {
"changed": false,
"unreachable": true
}
MSG:
Failed to connect to the host via ssh: OpenSSH_7.4p1 Raspbian-10+deb9u3, OpenSSL 1.0.2l 25 May 2017
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug1: auto-mux: Trying existing master
debug1: Control socket "/home/devops/.ansible/cp/ansible-ssh-my-host-22-root" does not exist
debug2: resolving "my-host" port 22
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to my-host [192.168.xx.xx] port 22.
debug2: fd 3 setting O_NONBLOCK
debug1: fd 3 clearing O_NONBLOCK
debug1: Connection established.
debug3: timeout: 10000 ms remain after connect
debug1: identity file /home/devops/.ssh/id_rsa type 1
debug1: key_load_public: No such file or directory
debug1: identity file /home/devops/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/devops/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/devops/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/devops/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/devops/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/devops/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/devops/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.4p1 Raspbian-10+deb9u3
debug1: Remote protocol version 2.0, remote software version OpenSSH_6.6.1p1 Ubuntu-2ubuntu2.10
debug1: match: OpenSSH_6.6.1p1 Ubuntu-2ubuntu2.10 pat OpenSSH_6.6.1* compat 0x04000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to my-host:22 as 'root'
debug3: hostkeys_foreach: reading file "/home/devops/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/devops/.ssh/known_hosts:5
debug3: load_hostkeys: loaded 1 keys from my-host
debug3: order_hostkeyalgs: prefer hostkeyalgs: ecdsa-sha2-nistp256-cert-v01#openssh.com,ecdsa-sha2-nistp384-cert-v01#openssh.com,ecdsa-sha2-nistp521-cert-v01#openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521
debug3: send packet: type 20
debug1: SSH2_MSG_KEXINIT sent
debug3: receive packet: type 20
debug1: SSH2_MSG_KEXINIT received
debug2: local client KEXINIT proposal
debug2: KEX algorithms: curve25519-sha256,curve25519-sha256#libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1,ext-info-c
debug2: host key algorithms: ecdsa-sha2-nistp256-cert-v01#openssh.com,ecdsa-sha2-nistp384-cert-v01#openssh.com,ecdsa-sha2-nistp521-cert-v01#openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519-cert-v01#openssh.com,ssh-rsa-cert-v01#openssh.com,ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa
debug2: ciphers ctos: chacha20-poly1305#openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm#openssh.com,aes256-gcm#openssh.com,aes128-cbc,aes192-cbc,aes256-cbc
debug2: ciphers stoc: chacha20-poly1305#openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm#openssh.com,aes256-gcm#openssh.com,aes128-cbc,aes192-cbc,aes256-cbc
debug2: MACs ctos: umac-64-etm#openssh.com,umac-128-etm#openssh.com,hmac-sha2-256-etm#openssh.com,hmac-sha2-512-etm#openssh.com,hmac-sha1-etm#openssh.com,umac-64#openssh.com,umac-128#openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: umac-64-etm#openssh.com,umac-128-etm#openssh.com,hmac-sha2-256-etm#openssh.com,hmac-sha2-512-etm#openssh.com,hmac-sha1-etm#openssh.com,umac-64#openssh.com,umac-128#openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: zlib#openssh.com,zlib,none
debug2: compression stoc: zlib#openssh.com,zlib,none
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug2: peer server KEXINIT proposal
debug2: KEX algorithms: curve25519-sha256#libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
debug2: host key algorithms: ssh-rsa,ssh-dss,ecdsa-sha2-nistp256,ssh-ed25519
debug2: ciphers ctos: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-gcm#openssh.com,aes256-gcm#openssh.com,chacha20-poly1305#openssh.com,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc#lysator.liu.se
debug2: ciphers stoc: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-gcm#openssh.com,aes256-gcm#openssh.com,chacha20-poly1305#openssh.com,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc#lysator.liu.se
debug2: MACs ctos: hmac-md5-etm#openssh.com,hmac-sha1-etm#openssh.com,umac-64-etm#openssh.com,umac-128-etm#openssh.com,hmac-sha2-256-etm#openssh.com,hmac-sha2-512-etm#openssh.com,hmac-ripemd160-etm#openssh.com,hmac-sha1-96-etm#openssh.com,hmac-md5-96-etm#openssh.com,hmac-md5,hmac-sha1,umac-64#openssh.com,umac-128#openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,hmac-ripemd160#openssh.com,hmac-sha1-96,hmac-md5-96
debug2: MACs stoc: hmac-md5-etm#openssh.com,hmac-sha1-etm#openssh.com,umac-64-etm#openssh.com,umac-128-etm#openssh.com,hmac-sha2-256-etm#openssh.com,hmac-sha2-512-etm#openssh.com,hmac-ripemd160-etm#openssh.com,hmac-sha1-96-etm#openssh.com,hmac-md5-96-etm#openssh.com,hmac-md5,hmac-sha1,umac-64#openssh.com,umac-128#openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,hmac-ripemd160#openssh.com,hmac-sha1-96,hmac-md5-96
debug2: compression ctos: none,zlib#openssh.com
debug2: compression stoc: none,zlib#openssh.com
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug1: kex: algorithm: curve25519-sha256#libssh.org
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: chacha20-poly1305#openssh.com MAC: <implicit> compression: zlib#openssh.com
debug1: kex: client->server cipher: chacha20-poly1305#openssh.com MAC: <implicit> compression: zlib#openssh.com
debug3: send packet: type 30
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug3: receive packet: type 31
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:frX/+3pJF0LBtAnLE0j3rIbXOC/bGIsUflTcwQWBrHA
debug3: hostkeys_foreach: reading file "/home/devops/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/devops/.ssh/known_hosts:5
debug3: load_hostkeys: loaded 1 keys from my-host
debug3: hostkeys_foreach: reading file "/home/devops/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/devops/.ssh/known_hosts:6
debug3: load_hostkeys: loaded 1 keys from 192.168.xx.xx
debug1: Host 'my-host' is known and matches the ECDSA host key.
debug1: Found key in /home/devops/.ssh/known_hosts:5
debug3: send packet: type 21
debug2: set_newkeys: mode 1
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug3: receive packet: type 21
debug1: SSH2_MSG_NEWKEYS received
debug2: set_newkeys: mode 0
debug1: rekey after 134217728 blocks
debug2: key: /home/devops/.ssh/id_rsa (0x1d17d58), agent
debug2: key: /home/devops/.ssh/id_dsa ((nil))
debug2: key: /home/devops/.ssh/id_ecdsa ((nil))
debug2: key: /home/devops/.ssh/id_ed25519 ((nil))
debug3: send packet: type 5
debug3: receive packet: type 6
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug3: send packet: type 50
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,password
debug3: start over, passed a different list publickey,password
debug3: preferred gssapi-with-mic,gssapi-keyex,hostbased,publickey
debug3: authmethod_lookup publickey
debug3: remaining preferred: ,gssapi-keyex,hostbased,publickey
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Offering RSA public key: /home/devops/.ssh/id_rsa
debug3: send_pubkey_test
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,password
debug1: Trying private key: /home/devops/.ssh/id_dsa
debug3: no such identity: /home/devops/.ssh/id_dsa: No such file or directory
debug1: Trying private key: /home/devops/.ssh/id_ecdsa
debug3: no such identity: /home/devops/.ssh/id_ecdsa: No such file or directory
debug1: Trying private key: /home/devops/.ssh/id_ed25519
debug3: no such identity: /home/devops/.ssh/id_ed25519: No such file or directory
debug2: we did not send a packet, disable method
debug1: No more authentication methods to try.
Permission denied (publickey,password).
Can someone help me or explain where my fallacy is?
It's issue with your SSH-Keys.
You must correctly add your public / private keys.
debug3: no such identity: /home/devops/.ssh/id_dsa: No such file or directory
debug1: Trying private key: /home/devops/.ssh/id_ecdsa
debug3: no such identity: /home/devops/.ssh/id_ecdsa: No such file or directory
debug1: Trying private key: /home/devops/.ssh/id_ed25519
debug3: no such identity: /home/devops/.ssh/id_ed25519: No such file or directory
Please add the key to your agent using:
ssh-add
I have ansible 2.0.0.2 installed on my Ubuntu 16.04.01 host system.
My hosts file is the following
[testservers]
tsrv1 ansible_ssh_private_key_file=/home/pkaramol/Workspace/vagrans/vagrant/precise32/.vagrant/machines/default/virtualbox/private_key ansible_user=vagrant
[dbservers]
dmsdb_1 ansible_ssh_private_key_file=/home/pkaramol/Workspace/vagrans/vagrant/rhel72-db2/.vagrant/machines/default/virtualbox/private_key ansible_user=vagrant
While ansible tsrv1 -m ping is successful, ansible dmsdb_1 -m ping -vvvv yields the following weird output
(note that I run both after deleting ~/.ssh/known_hosts file)
OpenSSH_7.2p2 Ubuntu-4ubuntu2.1, OpenSSL 1.0.2g 1 Mar 2016\r
debug1: Reading configuration data /home/pkaramol/.ssh/config\r
debug1: /home/pkaramol/.ssh/config line 1: Applying options for *\r
debug1: Reading configuration data /etc/ssh/ssh_config\r
debug1: /etc/ssh/ssh_config line 19: Applying options for *\r
debug1: auto-mux: Trying existing master\r
debug1: Control socket \"/home/pkaramol/.ansible/cp/ansible-ssh-dmsdb_1-22-vagrant\" does not exist\r
debug2: resolving \"dmsdb_1\" port 22\r
debug2: ssh_connect_direct: needpriv 0\r
debug1: Connecting to dmsdb_1 [192.168.33.11] port 22.\r
debug2: fd 3 setting O_NONBLOCK\r
debug1: fd 3 clearing O_NONBLOCK\r
debug1: Connection established.\r
debug3: timeout: 10000 ms remain after connect\r
debug1: key_load_public: No such file or directory\r
debug1: identity file /home/pkaramol/Workspace/vagrans/vagrant/rhel72-db2/.vagrant/machines/default/virtualbox/private_key type -1\r
debug1: key_load_public: No such file or directory\r
debug1: identity file /home/pkaramol/Workspace/vagrans/vagrant/rhel72-db2/.vagrant/machines/default/virtualbox/private_key-cert type -1\r
debug1: Enabling compatibility mode for protocol 2.0\r
debug1: Local version string SSH-2.0-OpenSSH_7.2p2 Ubuntu-4ubuntu2.1\r
debug1: Remote protocol version 2.0, remote software version OpenSSH_6.6.1\r
debug1: match: OpenSSH_6.6.1 pat OpenSSH_6.6.1* compat 0x04000000\r
debug2: fd 3 setting O_NONBLOCK\r
debug1: Authenticating to dmsdb_1:22 as 'vagrant'\r
debug3: send packet: type 20\r
debug1: SSH2_MSG_KEXINIT sent\r
debug3: receive packet: type 20\r
debug1: SSH2_MSG_KEXINIT received\r
debug2: local client KEXINIT proposal\r
debug2: KEX algorithms: curve25519-sha256#libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,ext-info-c\r
debug2: host key algorithms: ecdsa-sha2-nistp256-cert-v01#openssh.com,ecdsa-sha2-nistp384-cert-v01#openssh.com,ecdsa-sha2-nistp521-cert-v01#openssh.com,ssh-ed25519-cert-v01#openssh.com,ssh-rsa-cert-v01#openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa\r
debug2: ciphers ctos: chacha20-poly1305#openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm#openssh.com,aes256-gcm#openssh.com,aes128-cbc,aes192-cbc,aes256-cbc,3des-cbc\r
debug2: ciphers stoc: chacha20-poly1305#openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm#openssh.com,aes256-gcm#openssh.com,aes128-cbc,aes192-cbc,aes256-cbc,3des-cbc\r
debug2: MACs ctos: umac-64-etm#openssh.com,umac-128-etm#openssh.com,hmac-sha2-256-etm#openssh.com,hmac-sha2-512-etm#openssh.com,hmac-sha1-etm#openssh.com,umac-64#openssh.com,umac-128#openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1\r
debug2: MACs stoc: umac-64-etm#openssh.com,umac-128-etm#openssh.com,hmac-sha2-256-etm#openssh.com,hmac-sha2-512-etm#openssh.com,hmac-sha1-etm#openssh.com,umac-64#openssh.com,umac-128#openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1\r
debug2: compression ctos: zlib#openssh.com,zlib,none\r
debug2: compression stoc: zlib#openssh.com,zlib,none\r
debug2: languages ctos: \r
debug2: languages stoc: \r
debug2: first_kex_follows 0 \r
debug2: reserved 0 \r
debug2: peer server KEXINIT proposal\r
debug2: KEX algorithms: curve25519-sha256#libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1\r
debug2: host key algorithms: ssh-rsa,ecdsa-sha2-nistp256,ssh-ed25519\r
debug2: ciphers ctos: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-gcm#openssh.com,aes256-gcm#openssh.com,chacha20-poly1305#openssh.com,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc#lysator.liu.se\r
debug2: ciphers stoc: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-gcm#openssh.com,aes256-gcm#openssh.com,chacha20-poly1305#openssh.com,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc#lysator.liu.se\r
debug2: MACs ctos: hmac-md5-etm#openssh.com,hmac-sha1-etm#openssh.com,umac-64-etm#openssh.com,umac-128-etm#openssh.com,hmac-sha2-256-etm#openssh.com,hmac-sha2-512-etm#openssh.com,hmac-ripemd160-etm#openssh.com,hmac-sha1-96-etm#openssh.com,hmac-md5-96-etm#openssh.com,hmac-md5,hmac-sha1,umac-64#openssh.com,umac-128#openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,hmac-ripemd160#openssh.com,hmac-sha1-96,hmac-md5-96\r
debug2: MACs stoc: hmac-md5-etm#openssh.com,hmac-sha1-etm#openssh.com,umac-64-etm#openssh.com,umac-128-etm#openssh.com,hmac-sha2-256-etm#openssh.com,hmac-sha2-512-etm#openssh.com,hmac-ripemd160-etm#openssh.com,hmac-sha1-96-etm#openssh.com,hmac-md5-96-etm#openssh.com,hmac-md5,hmac-sha1,umac-64#openssh.com,umac-128#openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,hmac-ripemd160#openssh.com,hmac-sha1-96,hmac-md5-96\r
debug2: compression ctos: none,zlib#openssh.com\r
debug2: compression stoc: none,zlib#openssh.com\r
debug2: languages ctos: \r
debug2: languages stoc: \r
debug2: first_kex_follows 0 \r
debug2: reserved 0 \r
debug1: kex: algorithm: curve25519-sha256#libssh.org\r
debug1: kex: host key algorithm: ecdsa-sha2-nistp256\r
debug1: kex: server->client cipher: chacha20-poly1305#openssh.com MAC: <implicit> compression: zlib#openssh.com\r
debug1: kex: client->server cipher: chacha20-poly1305#openssh.com MAC: <implicit> compression: zlib#openssh.com\r
debug3: send packet: type 30\r
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY\r
debug3: receive packet: type 31\r
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:RS3yHSobFXsfY/LLfBdMIoWNibW8qvoB/Ff9MBkL9/c\r
Warning: Permanently added 'dmsdb_1,192.168.33.11' (ECDSA) to the list of known hosts.\r
debug3: send packet: type 21\r
debug2: set_newkeys: mode 1\r
debug1: rekey after 134217728 blocks\r
debug1: SSH2_MSG_NEWKEYS sent\r
debug1: expecting SSH2_MSG_NEWKEYS\r
debug3: receive packet: type 21\r
debug2: set_newkeys: mode 0\r
debug1: rekey after 134217728 blocks\r
debug1: SSH2_MSG_NEWKEYS received\r
debug2: key: pkaramol#ISA9813 (0x55751be641f0), agent\r
debug2: key: /home/pkaramol/Workspace/vagrans/vagrant/rhel72-db2/.vagrant/machines/default/virtualbox/private_key ((nil)), explicit\r
debug3: send packet: type 5\r
debug3: receive packet: type 6\r
debug2: service_accept: ssh-userauth\r
debug1: SSH2_MSG_SERVICE_ACCEPT received\r
debug3: send packet: type 50\r
debug3: receive packet: type 51\r
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password\r
debug3: start over, passed a different list publickey,gssapi-keyex,gssapi-with-mic,password\r
debug3: preferred gssapi-with-mic,gssapi-keyex,hostbased,publickey\r
debug3: authmethod_lookup gssapi-with-mic\r
debug3: remaining preferred: gssapi-keyex,hostbased,publickey\r
debug3: authmethod_is_enabled gssapi-with-mic\r
debug1: Next authentication method: gssapi-with-mic\r
debug1: Unspecified GSS failure. Minor code may provide more information
No Kerberos credentials available
\r
debug1: Unspecified GSS failure. Minor code may provide more information
No Kerberos credentials available
debug1: Unspecified GSS failure. Minor code may provide more information
debug1: Unspecified GSS failure. Minor code may provide more information
No Kerberos credentials available
debug2: we did not send a packet, disable method\r
debug3: authmethod_lookup gssapi-keyex\r
debug3: remaining preferred: hostbased,publickey\r
debug3: authmethod_is_enabled gssapi-keyex\r
debug1: Next authentication method: gssapi-keyex\r
debug1: No valid Key exchange context\r
debug2: we did not send a packet, disable method\r
debug3: authmethod_lookup publickey\r
debug3: remaining preferred: ,publickey\r
debug3: authmethod_is_enabled publickey\r
debug1: Next authentication method: publickey\r
debug1: Offering RSA public key: pkaramol#ISA9813\r
debug3: send_pubkey_test\r
debug3: send packet: type 50\r
debug2: we sent a publickey packet, wait for reply\r
debug3: receive packet: type 51\r
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password\r
debug1: Trying private key: /home/pkaramol/Workspace/vagrans/vagrant/rhel72-db2/.vagrant/machines/default/virtualbox/private_key\r
debug3: sign_and_send_pubkey: RSA SHA256:b2ubdyVwK253Fsewqq5WjEjzEeeKADonx4L9xYPRLfI\r
debug3: send packet: type 50\r
debug2: we sent a publickey packet, wait for reply\r
debug3: receive packet: type 51\r
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password\r
debug2: we did not send a packet, disable method\r
debug1: No more authentication methods to try.\r
Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password).\r
",
"unreachable": true
}
tsrv1 is a precise32 vm
dmsdb_1 is a rhel72 vm (to which however I used to be able to connect before some random change occurred that messed things up)
I have also tried vagrand destroy --force && vagrant up for the problematic vm.
update: here is my ~/.ssh/config
Host *
StrictHostKeyChecking no
the /etc/ssh/ssh_config file
# This is the ssh client system-wide configuration file. See
# ssh_config(5) for more information. This file provides defaults for
# users, and the values can be changed in per-user configuration files
# or on the command line.
# Configuration data is parsed as follows:
# 1. command line options
# 2. user-specific file
# 3. system-wide file
# Any configuration value is only changed the first time it is set.
# Thus, host-specific definitions should be at the beginning of the
# configuration file, and defaults at the end.
# Site-wide defaults for some commonly used options. For a comprehensive
# list of available options, their meanings and defaults, please see the
# ssh_config(5) man page.
Host *
# ForwardAgent no
# ForwardX11 no
# ForwardX11Trusted yes
# RhostsRSAAuthentication no
# RSAAuthentication yes
# PasswordAuthentication yes
# HostbasedAuthentication no
# GSSAPIAuthentication no
# GSSAPIDelegateCredentials no
# GSSAPIKeyExchange no
# GSSAPITrustDNS no
# BatchMode no
# CheckHostIP yes
# AddressFamily any
# ConnectTimeout 0
# StrictHostKeyChecking ask
# IdentityFile ~/.ssh/identity
# IdentityFile ~/.ssh/id_rsa
# IdentityFile ~/.ssh/id_dsa
# IdentityFile ~/.ssh/id_ecdsa
# IdentityFile ~/.ssh/id_ed25519
# Port 22
# Protocol 2
# Cipher 3des
# Ciphers aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc
# MACs hmac-md5,hmac-sha1,umac-64#openssh.com,hmac-ripemd160
# EscapeChar ~
# Tunnel no
# TunnelDevice any:any
# PermitLocalCommand no
# VisualHostKey no
# ProxyCommand ssh -q -W %h:%p gateway.example.com
# RekeyLimit 1G 1h
SendEnv LANG LC_*
HashKnownHosts yes
GSSAPIAuthentication yes
GSSAPIDelegateCredentials no
I just use a local configuration file for ansible which just points to the inventory
[defaults]
inventory = ./myfolder
The weird thing is that I CAN connect by typing vagrant ssh to that particular machine!
Any help is highly appreciated I don't know even how to start with this ...
Although this is more of a practical workaround than an actual answer to the above problem, here it goes:
The issue seems to be solved by using a different private network ip address for the specific vm, i.e. by changing the following line in Vagrantfile from
config.vm.network "private_network", ip: "192.168.33.11"
to
config.vm.network "private_network", ip: "192.168.33.13"
as also the subsequent mapping in /etc/hosts file from
192.168.33.11 dmsdb_1
to
192.168.33.13 dmsdb_1
I've created an Ubuntu instance in OpenStack and retrieved the pem file to allow me to ssh into it from my Control machine. In total I have just two machines: My Control machine running Ubuntu and with Ansible 2.0.0.2 installed, and my Openstack instance that is also running Ubuntu.
From that control machine, I can ssh in using:
ssh -i /home/lovea/.ssh/ggcloud-keypair.pem ubuntu#192.168.138.107
This works - Without any additional keystrokes, I'm logged in on the OpenStack instance.
But I want to use Ansible - running on this same Control machine - to provision the Ubuntu instance. In /etc/ansible/ansible.cfg I've set the private key file to use the same one as I've been using to ssh. I then try to ping the Openstack instance using the following Ansible command:
ansible -vv --become-user ubuntu -i '192.168.138.107,' all -m ping
As I understand it, Ansible should try to connect as user ubuntu using the same ssh credentials. However, the response I get is:
192.168.138.107 | UNREACHABLE! => {
"changed": false,
"msg": "ERROR! SSH encountered an unknown error during the connection. We recommend you re-run the command using -vvvv, which will enable SSH debugging output to help diagnose the issue",
"unreachable": true
}
As instructed, I reran this with -vvvv but there's a lot of output:
Using /etc/ansible/ansible.cfg as config file
Loaded callback minimal of type stdout, v2.0
<192.168.138.107> ESTABLISH SSH CONNECTION FOR USER: None
<192.168.138.107> SSH: EXEC ssh -C -vvv -o ControlMaster=auto -o ControlPersist=60s -o 'IdentityFile="/home/lovea/.ssh/ggcloud-keypair.pem"' -o KbdInteractiveAuthentication=no -o PreferredAuthentications=gssapi-with-mic,gssapi-keyex,hostbased,publickey -o PasswordAuthentication=no -o ConnectTimeout=10 -o ControlPath=/home/lovea/.ansible/cp/ansible-ssh-%h-%p-%r -tt 192.168.138.107 '( umask 22 && mkdir -p "$( echo $HOME/.ansible/tmp/ansible-tmp-1465459787.48-123588424864170 )" && echo "$( echo $HOME/.ansible/tmp/ansible-tmp-1465459787.48-123588424864170 )" )'
192.168.138.107 | UNREACHABLE! => {
"changed": false,
"msg": "ERROR! SSH encountered an unknown error. The output was:\nOpenSSH_7.2p2 Ubuntu-4ubuntu1, OpenSSL 1.0.2g-fips 1 Mar 2016
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug1: auto-mux: Trying existing master
debug1: Control socket \"/home/lovea/.ansible/cp/ansible-ssh-192.168.138.107-22-lovea\" does not exist
debug2: resolving \"192.168.138.107\" port 22
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to 192.168.138.107 [192.168.138.107] port 22.
debug2: fd 3 setting O_NONBLOCK
debug1: fd 3 clearing O_NONBLOCK
debug1: Connection established.
debug3: timeout: 9999 ms remain after connect
debug1: key_load_public: No such file or directory
debug1: identity file /home/lovea/.ssh/ggcloud-keypair.pem type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/lovea/.ssh/ggcloud-keypair.pem-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.2p2 Ubuntu-4ubuntu1
debug1: Remote protocol version 2.0, remote software version OpenSSH_7.2p2 Ubuntu-4ubuntu1
debug1: match: OpenSSH_7.2p2 Ubuntu-4ubuntu1 pat OpenSSH* compat 0x04000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to 192.168.138.107:22 as 'lovea'
debug3: hostkeys_foreach: reading file \"/home/lovea/.ssh/known_hosts\"
debug3: record_hostkey: found key type ECDSA in file /home/lovea/.ssh/known_hosts:12
debug3: load_hostkeys: loaded 1 keys from 192.168.138.107
debug3: order_hostkeyalgs: prefer hostkeyalgs: ecdsa-sha2-nistp256-cert-v01#openssh.com,ecdsa-sha2-nistp384-cert-v01#openssh.com,ecdsa-sha2-nistp521-cert-v01#openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521
debug3: send packet: type 20
debug1: SSH2_MSG_KEXINIT sent
debug3: receive packet: type 20
debug1: SSH2_MSG_KEXINIT received
debug2: local client KEXINIT proposal
debug2: KEX algorithms: curve25519-sha256#libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,ext-info-c
debug2: host key algorithms: ecdsa-sha2-nistp256-cert-v01#openssh.com,ecdsa-sha2-nistp384-cert-v01#openssh.com,ecdsa-sha2-nistp521-cert-v01#openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519-cert-v01#openssh.com,ssh-rsa-cert-v01#openssh.com,ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa
debug2: ciphers ctos: chacha20-poly1305#openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm#openssh.com,aes256-gcm#openssh.com,aes128-cbc,aes192-cbc,aes256-cbc,3des-cbc
debug2: ciphers stoc: chacha20-poly1305#openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm#openssh.com,aes256-gcm#openssh.com,aes128-cbc,aes192-cbc,aes256-cbc,3des-cbc
debug2: MACs ctos: umac-64-etm#openssh.com,umac-128-etm#openssh.com,hmac-sha2-256-etm#openssh.com,hmac-sha2-512-etm#openssh.com,hmac-sha1-etm#openssh.com,umac-64#openssh.com,umac-128#openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: umac-64-etm#openssh.com,umac-128-etm#openssh.com,hmac-sha2-256-etm#openssh.com,hmac-sha2-512-etm#openssh.com,hmac-sha1-etm#openssh.com,umac-64#openssh.com,umac-128#openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: zlib#openssh.com,zlib,none
debug2: compression stoc: zlib#openssh.com,zlib,none
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug2: peer server KEXINIT proposal
debug2: KEX algorithms: curve25519-sha256#libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1
debug2: host key algorithms: ssh-rsa,rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256,ssh-ed25519
debug2: ciphers ctos: chacha20-poly1305#openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm#openssh.com,aes256-gcm#openssh.com
debug2: ciphers stoc: chacha20-poly1305#openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm#openssh.com,aes256-gcm#openssh.com
debug2: MACs ctos: umac-64-etm#openssh.com,umac-128-etm#openssh.com,hmac-sha2-256-etm#openssh.com,hmac-sha2-512-etm#openssh.com,hmac-sha1-etm#openssh.com,umac-64#openssh.com,umac-128#openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: umac-64-etm#openssh.com,umac-128-etm#openssh.com,hmac-sha2-256-etm#openssh.com,hmac-sha2-512-etm#openssh.com,hmac-sha1-etm#openssh.com,umac-64#openssh.com,umac-128#openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,zlib#openssh.com
debug2: compression stoc: none,zlib#openssh.com
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug1: kex: algorithm: curve25519-sha256#libssh.org
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: chacha20-poly1305#openssh.com MAC: <implicit> compression: zlib#openssh.com
debug1: kex: client->server cipher: chacha20-poly1305#openssh.com MAC: <implicit> compression: zlib#openssh.com
debug3: send packet: type 30
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug3: receive packet: type 31
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:nj0kaJqxstRTaw8TFFAL7Xm/PiNoFjrD3I+EN0ghlHs
debug3: hostkeys_foreach: reading file \"/home/lovea/.ssh/known_hosts\"
debug3: record_hostkey: found key type ECDSA in file /home/lovea/.ssh/known_hosts:12
debug3: load_hostkeys: loaded 1 keys from 192.168.138.107
debug1: Host '192.168.138.107' is known and matches the ECDSA host key.
debug1: Found key in /home/lovea/.ssh/known_hosts:12
debug3: send packet: type 21
debug2: set_newkeys: mode 1
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug3: receive packet: type 21
debug2: set_newkeys: mode 0
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS received
debug2: key: /home/lovea/.ssh/ggcloud-keypair.pem ((nil)), explicit
debug3: send packet: type 5
debug3: receive packet: type 7
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<rsa-sha2-256,rsa-sha2-512>
debug3: receive packet: type 6
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug3: send packet: type 50
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey
debug3: start over, passed a different list publickey
debug3: preferred gssapi-with-mic,gssapi-keyex,hostbased,publickey
debug3: authmethod_lookup publickey
debug3: remaining preferred: ,gssapi-keyex,hostbased,publickey
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Trying private key: /home/lovea/.ssh/ggcloud-keypair.pem
debug3: sign_and_send_pubkey: RSA SHA256:hihJQ4rsUcRl5JCc+TxubT3QO0qumD4SYL9GgABTaaQ
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey
debug2: we did not send a packet, disable method
debug1: No more authentication methods to try.
Permission denied (publickey).
",
"unreachable": true
}
Seems to be that it doesn't like the ssh key. All I can think is that become isn't actually making Ansible try to connect as user ubuntu but is an instruction to perform once connected. Is this right? Is there some way I can connect as ubuntu, or do I need root access here?
As you've worked out, the become_user is for what user to su to once you are connected.
To change the user that you connect as you should use the ansible_user variable in your group or host vars in an inventory.
If you want to specify the connection user as a command line argument then you can use -u or --user.
Within the Ansible config file (/etc/ansible/ansible.cfg by default), there's a commented-out option named remote_user. This can be set to something other than root in order to have Ansible connect as that user.