[CentOS] trouble shooting slow ssh logins

nate centos at linuxpowered.net
Thu Jan 21 19:51:52 UTC 2010


aurfalien at gmail.com wrote:
> Hi all,
>
> I noticed that my ssh logins to a particular server were taking up to
> 5 seconds to finally login.

This is frequently a DNS issue, is forward+reverse DNS functional?

You can also run SSH in debugging mode on the server, and increase
verbosity on the client. See the man pages.. I usually just fire up
another sshd on another port and test with that.

nate




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