How to Fix ssh Pausing When Connecting

How to Fix ssh Pausing When Connecting

At some locations you may find that ssh pauses somewhere around ten seconds between the connection and the login prompt. I find this happens on LANs where reverse DNS isn’t working right. (Such as when I’m playing with DNS at my office and break something. Did I admit to that? lol)

On the remote server,

  1. sudo vim /etc/ssh/ssd_config
  2. Locate UseDNS.
  3. Change it to: UseDNS no
  4. Save the file and exit vim.
  5. Restart sshd. On CentOS 5: sudo /sbin/service sshd restart

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