CentOS takes 10 seconds to start anything

Question

I've got CentOS 6 with Apache, Sendmail and Proftpd installed. When I try to start anything on it, I mean anything, it takes 10 seconds.

Sendmail? It takes 10 seconds to send something through PHP's mail().

Proftpd? It takes 10 seconds to get past the "waiting welcome message" part.

SSH? It takes 10 seconds for the server to allow me to input the password, and extra 10 seconds to log me in.

All these issues happen during the first load of each, if I send an e-mail through mail(), it takes 10 seconds to send it, but the second time I do it, it takes almost instantly. Same for Proftpd.

What is going on?

strace the startup process. Where does it hang? – QuentinMoss Oct 27 '15 at 20:01 — QuentinMoss, Oct 27 '15 at 20:01

score 5 · Answer 1 · edited Apr 13 '17 at 12:14

5

Check your DNS resolver situation and /etc/hosts configuration.

You want a local hostname defined and the hosts file to be properly configured. And definitely make sure your DNS servers are reachable.

edited Apr 13 '17 at 12:14

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1

answered Oct 27 '15 at 20:06

ewwhite

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CentOS takes 10 seconds to start anything

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