SSH login takes very long time...sometimes

Eric Anderson anderson at
Fri Dec 23 05:26:44 PST 2005

Michael A. Koerber wrote:

>  I have three machines that have had 5.4 and 6.0 installed.  Two of the three machines have very
>well behaved "ssh".  However, the machine (laptop) named OBOE does not.
>  Specifically "ssh oboe" will (most of the time) hang for around one minute before asking for a
>prompt.  However, if I'm logged into OBOE and "ssh BSD" (one of the other machines) a password is
>requested within a couple seconds.  (I said most of the time, since on occasion I can reboot OBOE
>and ssh will work just fine...hmmm.)
>  I have looked through the /var/log files for clues and skimmed "man ssh" for time out related
>stuff, but no luck.
>  Where should I start looking for clues?
>  All machines have had clean installs from "newfs'd" drive under both 5.4 and 6.0 so I'm sure no
>left over configs are getting propagated.

Check your DNS (or reverse DNS really) on the laptop (OBOE).


Eric Anderson        Sr. Systems Administrator        Centaur Technology
Anything that works is better than anything that doesn't.

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