[CentOS] SSH slow

Mon Jan 18 23:56:00 UTC 2010
John R Pierce <pierce at hogranch.com>

Brett Serkez wrote:
> In /etc/ssh/sshd_config change:  to
>
> UseDNS no

or, fix the reverse delegation in DNS.    its trying to look up the 
in-addr.arpa zone  for your IP, and the subnet delegation is broken and 
pointing to a black hole thats not replying