Procedure to change OpenSSH pre login banner

1) By default sshd server turns off this feature.

2) Login as the root user; create your login banner file:

# vi /etc/ssh/sshd-banner
Append text:
Welcome to XYZ Remote Login!

3) Open sshd configuration file /etc/sshd/sshd_config using a text editor:

# vi /etc/sshd/sshd_config
4) Add/edit the following line:

Banner /etc/ssh/sshd-banner
5) Save file and restart the sshd server:

# /etc/init.d/sshd restart
6) Test your new banner (from Linux or UNIX workstation or use any other ssh client)

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Post login message display:

Edit the file /etc/motd.