How to Extend SSH Timeout on CentOS 6.5 Server
By Shay Anderson on March 2014
This article explains how to extend the default timeout time for SSH on CentOS 6 servers (in this example CentOS 6.5).

First, edit the file /etc/ssh/sshd_config: # nano /etc/ssh/sshd_configUncomment these lines: #ClientAliveInterval 0
#ClientAliveCountMax 3And change values so they look like: ClientAliveInterval 120
ClientAliveCountMax 10
The 120 value for ClientAliveInterval means SSH will send KeepAlive packets in 120 second intervals. If SSH doesn’t receive a response back from the client the 10 value for ClientAliveCountMax means SSH will retry sending up to 10 times.

Finally, restart the SSH service: # service sshd restart
Stopping sshd: [ OK ]
Starting sshd: [ OK ]

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