 | | | Slow responce in ssh | Slow responce in ssh 2005-12-07 - By Jonathan Mergy
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Try
UseDNS no
in sshd_config
(turns off remote DNS lookups)
'UseDNS' is a more recent add instead of the old
'VerifyReverseMapping' if you have an older version of sshd running
the latter directive will work. The new version only like the former.
Jonathan
-- ---- ---- ---- ---- ----
Jonathan Mergy <jmergy@(protected)>
Director of IT, Powis Parker, Inc.
775 Heinz Avenue
Berkeley, CA 94710
Tel: 510-848-2463 x216
Fax: 510-295-2460
On Dec 7, 2005, at 9:40 AM, John Garmany wrote:
> Hi all,
> I have three servers running RH ES 3 all up2date. I connect to them
> through ssh. I connect to one server overseas and it always runs
> slow.
> Takes for ever to log in and the response is slow. VNC tunneled
> through
> ssh is also slow. Now I uses this server (at the firewall) to jump by
> ssh to another server. The second server response is normal. When I
> VNC to the second sever (tunneled through the first server) I get good
> response.
>
> Local log ons respond normally. Both servers host Oracle databases,
> neither is overloaded (runqueue or CPU).
>
> So the question is why does the ssh connection on the first server run
> slow while the same connection, sshed to another server responds
> normally?
> The first server has the ssh port forwarded through a Windows based
> firewall. The second server is completely behind the firewall,
> thus the
> second jump required.
>
> John
>
>
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