How to Fix Slow SSH Session Start



This appears to be a DNS issue

There are a couple of very simple ways to fix that:

  • add “UseDNS no” to /etc/ssh/sshd_config
  • add the client’s net address to the server’s /etc/hosts


login via ssh


nano /etc/ssh/sshd_config


Add lines 

#fix for slow SSH session start

UseDNS no


Save and exit

Service sshd restart




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