Allow user Root Can login via telnet on CentOS
After install service telnet, all user can login via telnet but only user /root cannot login via telnet. So, we should know that telnet is one service that insecure. So, if you want to allow user root can login via telnet, you should follow me step by step bellow.
I. after install service telnet you should go to part /etc/pam.d/login and /etc/pam.d/remote
to disable some option as bellow.
– add comment (#) on auth pam_securetty.so
-Add comment (#) on auth required pam-securetty.so