Setup Banner on Console and Remote login CentOS/RHEL 6

Example add below banner.


********************************************************************
* *
* This system is for the use of authorized users only. Usage of *
* this system may be monitored and recorded by system personnel. *
* *
* Unauthorized access to this machine is prohibited *
* Press Ctrl+D if you are not an authorized user *
* *
* Anyone using this system expressly consents to such monitoring *
* and is advised that if such monitoring reveals possible *
* evidence of criminal activity, system personnel may provide the *
* evidence from such monitoring to law enforcement officials. *
* *
********************************************************************

Steps SSH console login banner CentOS/RHEL 6:
– Login as root.
– Edit in /etc/motd insert the banner message then save.
# vi /etc/motd

Steps SSH remote login banner CentOS/RHEL 6
– Login as root
– Edit in /etc/issue.net insert the banner message then save.
# vi /etc/issue.net
– Edit /etc/sshd/sshd_config
# vi /etc/sshd/sshd_config