Linux system running Redhat 5.1.
When I connect to the machines with SSH there is a long delay before the login completes and I get a shell.
I did some research and found a solution to this problem that suggested that I could remove the /etc/resolv.conf
, and then logins would work quickly. I tried doing this and it actually worked; removing the /etc/resolv.conf
sped things up.
So now I want to understand why this is causing a problem, and how to get fast SSH logins without breaking name resolution.
Update: UseDNS no
was in sshd_config
(but has not fixed the issue)
/etc/resolv.conf
pointed to a long-obsolete DNS server.