No Secure Shell (SSH)\ Secure File Copy (SCP) access to Citrix ADC unit; both GUI and console access work fine.

Complete the following steps to resolve this issue:

1. Verify if the SSHd process is running by using the following command from the shell prompt:
   ps ax | grep ssh

2. If it is not running then restart the SSHd process by running the following command from the shell prompt:
   /usr/sbin/sshd -f /etc/sshd_config
   This should resolve the SSH issue. 

3. In case you get an error "WARNING: UNPROTECTED PRIVATE KEY FILE!" after step 2 then refer to CTX121565 change the private key permissions. 

4. After changing the permissions restart the SSHd process using the following command from shell prompt:
   /usr/sbin/sshd -f /etc/sshd_config