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XCCDF
Guide to the Secure Configuration of openSUSE
Services
SSH Server
Configure OpenSSH Server if Necessary
Set SSH Client Alive Interval
Set SSH Client Alive Interval
An XCCDF Rule
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Set SSH Client Alive Interval
Medium Severity
SSH allows administrators to set a network responsiveness timeout interval. After this interval has passed, the unresponsive client will be automatically logged out.
To set this timeout interval, edit the following line in
/etc/ssh/sshd_config
as follows:
ClientAliveInterval
The timeout
interval
is given in seconds. For example, have a timeout of 10 minutes, set
interval
to 600.
If a shorter timeout has already been set for the login shell, that value will preempt any SSH setting made in
/etc/ssh/sshd_config
. Keep in mind that some processes may stop SSH from correctly detecting that the user is idle.