I have a small test script as follows;
TESTDIR="$HOSTNAME"
ssh user#server.com "\$TESTDIR"
mkdir -p ~/$TESTDIR/test
exit
the output with bash -x is;
+ TESTDIR=ndx
+ ssh user#server.com '$TESTDIR'
+ mkdir -p /home/user/ndx/test
+ exit
Yet on the remote server, no directory exists?
The last argument of ssh is command you want to execute on the remote host:
TESTDIR="$HOSTNAME"
ssh user#server.com "mkdir -p ~/$TESTDIR/test"
If you have a pem file to ssh as authentication use the following
ssh -i your-key.pem user#ip_addr "mkdir -p /your_dir_name/test"
Related
I am trying to execute commands over ssh remotely.
It's 2x remote (2 level deep).
From my host, I ssh into target1 which is connected to target2.
I need the commands executed on target2.
There is no direct connection from host to target2.
Ex:
ssh root#target1 -t "ssh root#target2 -t "cat /usr/value""
The above command works.
ssh root#target1 -t "ssh root#target2 -t "echo 1 > /usr/value""
This command does not work. I get "No such file or directory"
You are trying to use a shell feature (redirection) instead of a command, so run that via shell (note: quoting gets tricky):
ssh -t root#target1 'ssh -t root#target2 /bin/bash -c \"echo 1 > /usr/value\"'
I suggest you study the man page for ssh_config. For instance, with this:
Host target2
User root
ProxyJump root#target1
your above command would be:
ssh -t target2 '/bin/bash -c "echo 1 > /usr/value"'
The next step is to use ansible (or similar) for system changes.
I have the below command and I'm unable to get it to run. It's saying that no password is being supplied for the SUDO command, any idea or help greatly appreciated, I've read every post I can find but to no avail.
sshpass -p $PASSWD ssh client_user#192.169.0.178 'cd /tmp/;echo $PASSWD | sudo -S mkdir ./test/;'
Also tried the below with no luck:
sshpass -p $PASSWD ssh client_user#192.169.0.178 <<EOF
cd /tmp/;
echo $PASSWD | sudo -S mkdir ./test/;
EOF
Error:
sudo: no password was provided
Hello everyone i need your help plz, i'm using gitlab ci/cd and trying to deploy my .jar application to an ubuntu server, i configured my gitlab project with a windows runner with shell executor. i configured a key based access on the runner to avoid being prompt for a password;
the following command runs successfully when i login to the runner machine and use it's powershell :
scp -i C:\Users\Administrators\ssh\id_rsa myapp-0.0.1-SNAPSHOT.jar username#myubuntuserver:/
but when i'm using the above commande in my .yml file to copy the .jar on the server, it doesn't give any response until the job fail due to timeout
i tried also the solution proposed here https://docs.gitlab.com/ee/ci/ssh_keys/ by setting an SSH_PRIVATE_KEY variable on my project but i'm unable to adapt the given 'before_script' to my windows runner.
this is the before_script proposed in the documentation (above link):
before_script:
- 'which ssh-agent || ( apt-get update -y && apt-get install openssh-client -y )'
- eval $(ssh-agent -s)
- echo "$SSH_PRIVATE_KEY" | tr -d '\r' | ssh-add -
- mkdir -p ~/.ssh
- chmod 700 ~/.ssh
when the previous scp command is replaced by this:
ssh -iv C:\Users\Administrators\ssh\id_rsa username#myubuntuserver
i get the following output:
the image
Thanks in advance
It works after doing the following steps:
1) configuring the runner (shell executor) on ubuntu 18.04
2) Then from the terminal login as the gitlab-runner user: sudo su - gitlab-runner
3) run ssh-keygen -t rsa
4) run ssh -i ~/.ssh/id_rsa username#myubuntuserver:
5) run cat ~/.ssh/id_rsa.pub | ssh username#myubuntuserver "mkdir -p ~/.ssh && touch ~/.ssh/authorized_keys && chmod -R go= ~/.ssh && cat >> ~/.ssh/authorized_keys"
5) now you can add the following to your job script (yml file) and it should work:
- scp -i ~/.ssh/id_rsa fileToCopy username#myubuntuserver:/mydirectory
#you can execute multiple commands at a time, for ex:
- ssh username#myubuntuserver " mv /mydirectory/myapp-0.0.1-SNAPSHOT.jar /mydirectory/myapp.jar "
Hope it will help
If ssh -iv C:\Users\Administrators\ssh\id_rsa username#myubuntuserver does not work, that may be because of the C: part, which confuses ssh into thinkig C is the name of the server!
A Unix-like path would work:
ssh -iv /C/Users/Administrators/ssh/id_rsa username#myubuntuserver
But, as the OP Medmahmoud comments, this supposes the public key has been published on the server:
Configure the runner on ubuntu18.04.
Then from the terminal login as the gitlab-runner user:
sudo su - gitlab-runner - run ssh-keygen -t rsa
ssh -i ~/.ssh/id_rsa username#myubuntuserver
cat ~/.ssh/id_rsa.pub | ssh username#myubuntuserver \
"mkdir -p ~/.ssh && touch ~/.ssh/authorized_keys && chmod -R go= ~/.ssh && cat >> ~/.ssh/authorized_keys"
Now from your yml file the following should work:
- scp -i ~/.ssh/id_rsa pom.xml username#myubuntuserver:/mydirectory
Here I have hardcoded username and password but want read it from file.
Command:
"/bin/bash -c 'sshpass -p root1234 ssh -o StrictHostKeyChecking=no root#ipaddrs qconf -ah $hostname'"
I need to create a tar and shipped it to my local folder.
If i can create tar file, i can easily get it on local folder using scp.
Here problem is at first step: Creating TAR on remote server. Server is accessible only through another remote server (bastion server).
Here is the command i'm using currently:
timestamp="20160226-085856"
ssh bastion_server -t ssh remote_server "sudo su -c \"cp -r /etc/nginx /home/ubuntu/backup/nginx_26Feb && cd /home/ubuntu/backup && tar -C /home/ubuntu/backup -cf backup_nginx-$timestamp.tar ./nginx_26Feb\" "
Here is the error i am getting:
su: invalid option -- 'r'
Usage: su [options] [LOGIN]
Any help here would be great.
Give it a try without the fancy sudo su -c. Using sudo -s should be enough:
ssh bastion_server -t ssh remote_server "sudo -s cp -r /etc/nginx \
/home/ubuntu/backup/nginx_26Feb && cd /home/ubuntu/backup && \
tar -C /home/ubuntu/backup -cf backup_nginx-$timestamp.tar ./nginx_26Feb"
Or rather set up proper two-hops ~/.ssh/config:
Host bastion
Hostname bastion_server
Host remote
Hostname remote_server
ProxyCommand ssh -W %h:%p bastion
and then just run
ssh remote sudo su -c "cp -r /etc/nginx /home/ubuntu/backup/nginx_26Feb \
&& cd /home/ubuntu/backup && tar -C /home/ubuntu/backup -cf \
backup_nginx-$timestamp.tar ./nginx_26Feb"
Without the fancy escaping and stuff.