To avoid SSH timeout issues when connecting from terminal/putty then I have added "ServerAliveInterval 60" to at /etc/ssh/ssh_config. now no more start the SSH server. Also can not login for remove this line. How to remove the line from ssh_config files?
Waiting for “sshd” to start ……Job for sshd.service failed because the control process exited with error code. See "systemctl status sshd.service" and "journalctl -xe" for details. …failed. Cpanel::Exception::Services::StartError Service Status Service Error (XID cqcfya) The “sshd” service failed to start. Startup Log Dec 12 03:50:43 na.nirjonmela.com systemd: Failed to start OpenSSH server daemon. Dec 12 03:50:43 na.nirjonmela.com systemd: Unit sshd.service entered failed state. Dec 12 03:50:43 na.nirjonmela.com systemd: sshd.service failed. Log Messages Dec 12 03:50:43 na sshd: /etc/ssh/sshd_config: terminating, 1 bad configuration options Dec 12 03:44:04 na sshd: pam_unix(sshd:session): session opened for user root by (uid=0) sshd has failed. Contact your system administrator if the service does not automagically recover.