Hello,

I have configure sshd in centos & Debian. When I am accessing these linux PC using ssh client its getting problem that it getting disconnect in a few minutes. For solving this problem I have add below line in /etc/ssh/sshd_config

TcpKeepAlive yes
ClientAliveInterval 300


Then restart sshd. But still problem does not solve. What can I do now???

Always look at logs and (debug) output first. Running sshd (in 'screen'?) on a different port with the "-d -d -d" args and ssh with "-v -v -v" gst you maximum debug output from both sides. It may or may not tell you more. If SSH is the only thing that gets disconnected you could try running ssh through 'autossh' to re-establish severed SSH connections and on the server run apps inside 'screen' which session you then can re-connect to. If SSH is not the only thing that gets disconnected you should do route diagnostics, start with 'tcptraceroute' (and not ping as it uses ICMP and not traceroute as it uses UDP and so both may or may not draw an accurate picture).

I add on the client side:to avoid it in /etc/ssh/ssh_config.