[CentOS] SSH slow

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


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







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