start > CentOS > 6 > ssh > slow ssh connections
slow ssh connections
(26 October 2012)
Problem
When I ssh login to a CentOS 6 system, it always takes around 30 second to log in.Solution
CentOS 6 has enabled the reverse-DNS name lookup of IPs by default. To disable in /etc/ssh/sshd_config, set:useDNS no
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