mercoledì 18 giugno 2014

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 nixCraft 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

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