Banner¶
An administrator can manage a custom banner on the system from the CLI to display before login. The banner needs to be configured on a per node basis, in other words on each node in a cluster.
Banners are maintained on system update.
Banner text:
Must be ASCII text in a UTF-8 file
Can be up to 1600 characters. This includes spaces, tabs and other non-printing characters.
Displays before login (SSH, SFTP, SCP)
An error message will display if the banner text is longer than the required length.
The following is an example:
$ ssh username@host
########################################################################
# WARNING: Unauthorized access to this system is forbidden and will be #
# prosecuted by law. By accessing this system, you agree that your #
# actions may be monitored if unauthorized usage is suspected. #
########################################################################
username@host's password:
The banner can be created in a file, uploaded to the system and then enabled.
Create the banner in a file, for example
banner.Upload the banner file, for example:
scp banner username@host:media/
When logged in on the system, remove any previous banner and add the uploaded banner:
system banner remove system banner add media/banner
The banner will then be shown as in the example above.
To show the current banner, use: system banner read If no banner is available, a message will show.
To remove the current banner, use: system banner remove