TIP: Monitoring IMAP server (xinetd)

[ecoutez]

If you're now running CPanel's IMAP daemon, you may want to ensure that xinetd stays operational. It's fairly simple to add this to the existing chkserv monitoriing...

- create a file /etc/chkserv.d/imapd with contents...
#SERVICE = PORT, SEND, RESPONSE, RESTART COMMAND
service[imapd]=143,. LOGOUT,* OK,/etc/rc.d/init.d/xinetd start

- chown root.root /etc/chkserv.d/imapd
- chmod 600 /etc/chkserv.d/imapd
- /etc/rc.d/init.d/chkservd restart

This will also add the status of imapd to WHM and CP &service status& lights.

Adding a monitor for the POP3 server would be fairly similar, though the contents of the /etc/chkserv.d/cppop file (or whatever you prefer to call it) would be something like this. (I haven't tested this yet, so no guarantees on this one)...
service[cppop]=110,QUIT,+OK POP3,/usr/local/cpanel/bin/cppop

Enjoy!

- Jason

 

[ecoutez]

Well, since I mentioned the POP server, here are my results.

When I telnet to localhost 110, I get...
+OK POP3 [DarkORB cppop 1.2] at [127.0.0.1] ()

So I should be able to match the &+OK POP3& portion, or at least just &+OK&. Strangely enough, I couldn't get the server to agree that &+OK POP3& is the same as &+OK POP3&... so I tried shortening the match to just &+OK& and still had problems. In /var/log/chkservd.log I would get something like this:
[pop3: [+O != +O]
-Restarting pop3....
system: /usr/local/cpanel/bin/cppop
]

+0 looks equal to +0 to me. *shrug*

Finally I was only able to get it working matching only the &+&. So my /etc/chkserv.d/pop3 looks like:
#SERVICE = PORT, SEND, RESPONSE, RESTART COMMAND
service[pop3]=110,QUIT,+,/usr/local/cpanel/bin/cppop

Maybe chkserv queries the port in some other manner. At least this works... though not quite as elegantly as I would have hoped.

- Jason