CentOS Very Slow SSH Password Prompt

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If you are finding it takes ages for a password prompt to come up when trying to connect to a CentOS server (and possibly others) this is a solution.

The cause is that your IP address does not have the correct reverse DNS etc settings.

You can of course try to fix all that but if you need a quick fix, you can edit the sshd configuration and disable

GSSAPIAuthentication yes

to: GSSAPIAuthentication no


UseDNS yes

to: UseDNS no

Tags: sshslowcentosloginpasswordprompt