M E Fieu wrote:
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 ?
in /etc/ssh/sshd_config insert
ClientAliveInterval 600
ClientAliveCountMax 3
That will give you an timeout of 30 minutes (600 sec x 3)
Alex
