[CentOS] trouble shooting slow ssh logins

Amos Shapira amos.shapira at gmail.com
Fri Jan 22 05:36:57 UTC 2010


2010/1/22  <aurfalien at gmail.com>:
> The DNS server also behaved regarding name/ip addy lookups.
>
> This server is a Zimbra mail server which during install, checks for
> proper DNS configs.  I usually check proper functioning DNS by hand
> anyways.
>
> The ipv6 line was strange but I read a while back, some tech note
> about ensuring that is your last line in hosts.

We got delayes by GSSAPIAuthentication, which we don't use.

Try disabling it if you don't need it.

"ssh -vvvv" might reveal more about where the delay happens.

--Amos


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