how to set the idle-timeout in linux SSH
M E Fieu
sibu168 at yahoo.com
Tue May 31 10:52:10 UTC 2005
> from "man sshd_config"
>
> ClientAliveInterval
> Sets a timeout interval in seconds after which
> if no data has been
> received from the client, sshd will send a
> message through the
> encrypted channel to request a response from the
> client. The default
> is 0, indicating that these messages will not be
> sent to the
> client. This option applies to protocol version
> 2 only.
> ClientAliveCountMax
> Sets the number of client alive messages (see
> above) which may be
> sent without sshd receiving any messages back
> from the client.
> If this threshold is reached while client alive
> messages are being
> sent, sshd will disconnect the client,
> terminating the session.
> It is important to note that the use of client
> alive messages is very
> different from TCPKeepAlive (below). The client
> alive mes-
> sages are sent through the encrypted channel and
> therefore will not
> be spoofable. The TCP keepalive option enabled
> by TCPKeepAlive
> is spoofable. The client alive mechanism is
> valuable when the client
> or server depend on knowing when a connection
> has become
> inactive.
>
> The default value is 3. If ClientAliveInterval
> (above) is set to 15,
> and ClientAliveCountMax is left at the default,
> unresponsive
> ssh clients will be disconnected after
> approximately 45 seconds.
>
> Set this in your sshd_config and restart opensshd
>
> Hth
>From the sshd_config that I have, there is no entry
like ClientAliveInterval and ClientAliveCountMax in
this file. Should I create the entry in that file?
Besides, if there is no such entries in that file,
what is the default value then ?
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