Since google has stopped the openID support for gerrit, i am trying to use LDAP for the same now. I have IP and port number of the LDAP server. But i don't know how to start now.
I also need help to update my etc/gerrit_config file:
[auth]
type = ldap
[ldap]
server = ldap://[IP]
accountBase = ou=people,dc=domain,dc=com
groupBase = ou=groups,dc=domain,dc=com
referral = follow
accountPattern = (uid=${username})
groupPattern = (cn=${groupname})
accountFullName = cn
accountMemberField = memberOf
accountEmailAddress = mail
Since i am a newbie for ldap, could someone please help me in the same.
Thanks!!
At work I am running a gerrit instance that uses one of our work LDAPs for authentication. I use a configuration like this:
[ldap]
server = ldap://xxx.OurDomain.com
username = CN=ldapread,DC=OurDomain,DC=com
password = NotShownHere
accountBase = DC=OurDomain,DC=com
groupBase = DC=OurDomain,DC=com
The key point is that you need an LDAP user that is permitted to read from the LDAP and put the coordinates of that user into the config.
In our case, I obtained these coordinates from a know to work Apache httpd config file. In your case, you may have to ask your LDAP admin for suitable credentials.
Related
I am using fuseki 2.4 and have set a basic authentication in shiro.ini, sharing the contents of the current shiro.ini file below. Once after setting the credentials and restart fuseki service, when I try to make a connection to fuseki using direct fuseki endpoint ("/$/datasets/"), I am getting the authentication error as expected. If Iam trying to connect to fuseki data using a sparql, I am expecting the same authentication error as I have set the credentials in shiro.ini and haven't done authentication before making sparql call, but that's not happening and the connection is successful just like as in the case of no authentication.
Expectation here is, the respective sparql connection shouldn't happen as I have set the authentication in shiro.ini. Can anyone please help me with this?
Contents in shiro.ini:
[main]
# Development
ssl.enabled = false
plainMatcher=org.apache.shiro.authc.credential.SimpleCredentialsMatcher
#iniRealm=org.apache.shiro.realm.text.IniRealm
iniRealm.credentialsMatcher = $plainMatcher
localhostFilter=org.apache.jena.fuseki.authz.LocalhostFilter
[users]
# Implicitly adds "iniRealm = org.apache.shiro.realm.text.IniRealm"
admin=password123
[roles]
[urls]
## Control functions open to anyone
/$/status = anon
/$/ping = anon
## and the rest are restricted to localhost.
##/$/** = localhostFilter
## If you want simple, basic authentication user/password
## on the operations,
## 1 - set a better password in [users] above.
## 2 - comment out the "/$/** = localhost" line and use:
/$/** = authcBasic,user[admin]
## or to allow any access.
##/$/** = anon
# Everything else
/**=anon```
My requirement was to change the user password of AD. So, I created the LDAP SSL secure connection on the AD domain server by following https://bl.ocks.org/magnetikonline/0ccdabfec58eb1929c997d22e7341e45 successfully.
Using the ldp.exe tool (on the same AD server) I am able to connect with the SSL. This means LDAPS is enabled on the AD server.
Now I am trying to connect it from the ASP.NET Core application using the library Novell.Directory.Ldap which is on client-side using the following code:
public LdapConnection GetLDAPConnection(IOptions<ADConfiguration> _settings)
{
LdapConnection connection = new LdapConnection { SecureSocketLayer = true };
connection.Connect(_settings.Value.DomainIPAddress, _settings.Value.Port); //port is 636
connection.Bind(_settings.Value.AdminDn, _settings.Value.Password);
if (connection.Bound)
{
return connection;
}
return null;
}
The Connect method is throwing this error:
System.Security.Authentication.AuthenticationException: 'The remote certificate was rejected by the provided RemoteCertificateValidationCallback.'
Does the client machine also have settings for SSL? Or what else I am missing? Please help
I suspect your problem is using the IP address of the domain controller: _settings.Value.DomainIPAddress
SSL/TLS has two purposes: to encrypt the traffic, and to validate that the server is actually the server you want to be talking to. To address the second purpose, the domain name you use to connect must match the domain name in the certificate. In your case, when it validates the certificate, it sees that you connected to, let's say, 10.0.0.1, but the certificate it gets from the server says it is example.com and the validation fails because it doesn't match.
You will have to either:
Change _settings.Value.DomainIPAddress to the domain name used in the certificate. If you don't have DNS setup for that domain name, you could add an entry in your hosts file.
Tell LdapConnection to ignore certificate errors. The data will still be encrypted, but it won't validate the certificate (domain mismatch, expired cert, etc.). This is not recommended for a production application, but there is an example of that here: https://stackoverflow.com/a/67818854/1202807
Below code worked for me to connect to AD using LDAPS
ldapConnection = new LdapConnection(new LdapDirectoryIdentifier("your.LDAPSserver.com", 636));
var networkCredential = new NetworkCredential("UsernameWithoutDomain", "yourPassword", "AD.yourDOMAIN.com");
ldapConnection.SessionOptions.SecureSocketLayer = true;
ldapConnection.SessionOptions.ProtocolVersion = 3;
ldapConnection.SessionOptions.VerifyServerCertificate = new VerifyServerCertificateCallback(ServerCallback);
ldapConnection.AuthType = AuthType.Negotiate;
ldapConnection.Bind(networkCredential);
SearchRequest Srchrequest = new SearchRequest("CN=Users,DC=AD,DC=YOURCOMPANY,DC=COM", "mail=useremail#company.com", System.DirectoryServices.Protocols.SearchScope.Subtree);
SearchResponse SrchResponse = (SearchResponse)ldapConnection.SendRequest(Srchrequest);
// ServerCallback
private static bool ServerCallback(LdapConnection connection, X509Certificate certificate)
{
return true;
}
Surprisingly it is also working when I am not using networkCredential and just using ldapConnection.Bind(); Seems it is using my local credentials as default on my local machine.
I have to connect to different devices simultaneously using kerberos authenication. At present using default cache(File) to store kerberos ticket which stores only one ticket at a time. But for my requirement I have to store multiple tickets. Please suggest how to update cache which stores multiple tickets and how to access them. At present kerberos tickets are accessed using kinit.
Please share the detailed steps to update the cache to handle above requirement. I am new to this space your help is much appreciated.
Below is the sample krb5.conf configuration file. By default File cache is used.
{ [logging]
default = FILE:/var/log/krb5libs.log
kdc = FILE:/var/log/krb5kdc.log
admin_server = FILE:/var/log/kadmind.log
[libdefaults]
dns_lookup_realm = false
ticket_lifetime = 24h
renew_lifetime = 7d
forwardable = true
rdns = false
default_realm = EXAMPLE.COM
default_ccache_name = KEYRING:persistent:%{uid}
[realms]
EXAMPLE.COM = {
kdc = kerberos.example.com
admin_server = kerberos.example.com
}
[domain_realm]
.example.com = EXAMPLE.COM
example.com = EXAMPLE.COM
}
Updating more information on my requirement, for example under single active directory there are 10 windows devices all share same domain name , username and password. From this network(say from one linux machine) I want access these devices using Kerberos authentication as different user but not as root user. Currently Kerberos uses default cache FILE which stores only one ticket a time. But for my requirement I want to maintain all 10 tickets and access them not as a root user.With FILE cache and as different user I am able to access device using Kerberos authentication. My application is running in multi threaded environment. Please share the detailed solution I am new to this space.
I want to implementation centralize auth using AWS Simple AD (samba). The client machine is linux based (ubuntu and amazon linux). Ony my ldap, i just creat one user (cn=test) under dc=ldap,dc=test,dc=io.
I am using sssd as the auth client from my linux machine. And here my /etc/sssd/sssd.conf :
[sssd]
config_file_version = 2
services = nss, pam
domains = LDAP
[nss]
[pam]
[domain/LDAP]
id_provider = ldap
auth_provider = ldap
ldap_schema = rfc2307
ldap_uri = ldap://ldap.test.io
ldap_default_bind_dn = dc=ldap,dc=test,dc=io
ldap_default_authtok = password01
ldap_default_authtok_type = password
ldap_search_base = dc=ldap,dc=test,dc=io
ldap_user_search_base = dc=ldap,dc=test,dc=io
ldap_group_search_base = odc=ldap,dc=test,dc=io
ldap_user_object_class = inetOrgPerson
ldap_user_gecos = cn
override_shell = /bin/bash
cache_credentials = true
enumerate = true
But, it looks like not working from the client, i didn't get the ldap user from my client (i execute this getent passwd).
And i got this error:
nss_ldap: reconnecting to LDAP server...
nss_ldap: reconnecting to LDAP server (sleeping 1 seconds)...
nss_ldap: could not search LDAP server - Server is unavailable
No passwd entry for user 'test'
Here is my reference to configure the sssd client enter link description here
Any suggestion for this case ?
Thanks
The error message you are getting is from nss_ldap, not from nss_sss. So I assume in /etc/nsswitch.conf, you configured the ldap module either on its own or before sss. If the user information is to be returned by sssd then use the sss nsswich module.
I would also recommend to not use enumerate=true unless your directory is quite small.
In /etc/nsswitch.conf be sure to have:
passwd: files sss
shadow: files sss
groups: files sss
And of course in the stack of the /etc/pam.d/system-auth-ac and /etc/pam.d/password-auth-ac you have to use the pam_sss.so library.
Can someone point me to documentation and/or describe what the LDAP configuration options mean for gerrit's configuration?
Ex: ou= and dc= etc.
I found these details on google's site about ldap configuration for accountBase and groupBase however it too lacks details about what the options/parameters are and what their values should be based on.
https://gerrit-review.googlesource.com/Documentation/config-gerrit.html#ldap
Luckily I blindly copied a co-worker's gerrit server configuration, he's using version 2.1.x. Initially I thought his options were different due to version differences, but then I tried adding his extra fields and my unique ldap account worked with the additional 'ou=' and additional 'dc=' parameters. Error, bad-config and good-config below.
Note: Our company has a single ldap server, but my co-worker's gerrit has a separate ldap log-in than mine. I didn't copy his log-in to get mine working, it was simply the accountBase and groupBase options that made the difference.
Error:
cat log/error_log | tail -n 1
[2015-12-16 17:21:24,144] INFO com.google.gerrit.httpd.auth.ldap.LdapLoginServlet : 'cxxxxt\myaccount' failed to sign in: No such user: cxxxxt\myaccount
Bad config:
[ldap]
server = ldap://crcxxxxt.rxxxxxxxxxxxxxs.com
username = ldap_username_here#crcxxxxt.rxxxxxxxxxxxxxs.com
accountBase = DC=rxxxxxxxxxxxxxs,DC=com
groupBase = DC=rxxxxxxxxxxxxxs,DC=com
Good config:
[ldap]
server = ldap://crcxxxxt.rxxxxxxxxxxxxxs.com
username = ldap_username_here#cxxxxt.rxxxxxxxxxxxxxs.com
accountBase = ou=Cxxxxxs,dc=cxxxxt,dc=rxxxxxxxxxxxxxs,dc=com
groupBase = ou=Cxxxxxs,dc=cxxxxt,dc=rxxxxxxxxxxxxxs,dc=com
http://www.ldapman.org/articles/intro_to_ldap.html
This page describes ou= as organizational unit and dc= as domain components. I'll confirm these with my IT's LDAP configuration settings after the holidays.
Gerrit's site mentions what the separate row/options are but doesn't describe what the syntax of each line should be or what the options are for. For most configuration topics which aren't covered by gerrit's site, external links are provided. This was the only one I found missing for my chosen configuration.