Access denied when connecting through SSH using Authentication Services (4285751)

Trying to login with Active Directory QAS client through ssh or putty and getting access denied. Can connect su - <username> and then entering the password.

Pam was not configured in sshd_config

1. Ensure that the SSH version you are running is compiled with PAM:

ldd /usr/local/sbin/sshd | grep -i pam

2. Ensure that the configuration file is set to use PAM.

In your sshd_config file ensure the following options are set (depending on the version of SSH):

UsePAM yes
ChallengeResponseAuthentication yes
UsePrivilegeSeparation no

* you must restart sshd if the sshd_config was changed

3. Make sure that the user is Unix-enabled

4. Verify PAM configuration files /etc/pam.conf or /etc/pam.d/  includes pam_vas for the sshd service.

5. Test restart of sshd fixes the auth issue if happening for multiple accounts.