openssh connection drop

[Ragni Singh]

Hello,

my ssh connection is broken after 1-hour of idling on the terminal. Can you please help, points will be assigned.

Its a Linux server using..

Red Hat Enterprise Linux AS release 4 (Nahant Update 7)

OpenSSH_3.9p1, OpenSSL 0.9.7a Feb 19 2003

I have made the following change to sshd_config but that doesn't seem to help.

ClientAliveInterval 30
ClientAliveCountMax 5

[Steven E. Protter]

Shalom,

Systems administration 101.

When you change something and suddenly something is broken, you back out your change. It may not be obvious, but your change triggered the problem.

SEP

[Ragni Singh]

We'll I have went back and commented those 2 lines back. No other changes were made.

[Alan_152]

Try this:

ClientAliveInterval 216500
ClientAliveCountMax 0

Be sure to HUP the sshd daemon after making the change.

(Courtesy of http://support.citrix.com/article/CTX108882)

[Ragni Singh]

Hi Alan,


what does that client interval time get set to?

[Alan_152]

That's roughly 60 hours. My lab has it set that high to run automated scripts.

[Ragni Singh]

Thanks Alan, so this basically means that the connection will stay up for 60 hours?

[Ragni Singh]

I'm sorry Alan but I tried it and it still dropped me after 1 hour.

[Vitaly Karasik_1]

Do you have firewall[s] between your ssh client and sertver? If so, FW may have idle timeouts too.

[Wilfred Chau_1]

Is there a firewall between the client and the server? There may be a timeout set on the firewall that will terminate idle ssh session.