5.2.16 Ensure SSH warning banner is configured (Scored) [SecScan]

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======5.2.16 Ensure SSH warning banner is configured (Scored)======
=====Profile Applicability=====  
<code>
Level 1 - Server
Level 1 - Workstation 
</code>

=====Description=====
The ''Banner'' parameter specifies a file whose contents must be sent to the remote user before authentication is permitted. By default, no banner is displayed.

=====Rationale=====
Banners are used to warn connecting users of the particular site's policy regarding connection. Presenting a warning message prior to the normal user login may assist the prosecution of trespassers on the computer system.

=====Audit===== 
Run the following command and verify that output matches:
<Code:bash>
# grep "^Banner" /etc/ssh/sshd_config 
Banner /etc/issue.net
</Code>

=====Remediation===== 
Edit the ''/etc/ssh/sshd_config'' file to set the parameter as follows:
<Code:bash>
Banner /etc/issue.net
</Code>