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Full Version: Something wrong with reverse DNS but what?
The Planet Forums > Control Panels > cPanel/WHM
WreckRman2
Ok, the other day all of a sudden all my emails started to bounce. Through the help Curtis Stuart in the data center he determined that my /etc/resolv.conf was wrong... it had worked just fine up until now.

I changed the /etc/resolv.conf

from:

nameserver 127.0.0.1
nameserver 207.218.245.135
nameserver 207.218.247.135

to:

nameserver 127.0.0.1
nameserver 207.218.192.38
nameserver 207.218.192.39

That fixed my email bouncing problem however at the same time another problem started occuring.

I also run ircd on the server for a few guys to chat in the evening. On the same day the emails started bouncing when someone, anyone trys to connect to my ircd server it hangs for about a minute and says:

10:35 -irc.indywebdesign.com- *** Looking up your hostname
-
10:35 -irc.indywebdesign.com- *** Checking Ident
-
* Identd request from 66.98.180.230
* Identd replied: 2341, 6667 : USERID : UNIX : WreckRman2
-
10:35 -irc.indywebdesign.com- *** Got ident response
-
10:36 -irc.indywebdesign.com- *** Couldn't look up your hostname
-

This started the same time as when the emails started bouncing. NOTHING was changed on my end that night but all of a sudden my ircd couldn't resolve a hostname and my emails started bouncing unrouteable mail domain.

Changing the resolv.conf fixed my email problem but nothing I have done has fixed the ircd problem.

Everything worked just fine before that morning so I honestly feel EV1 changed something on their end that started all of this but what?

If I do a reverse lookup everything seems to be correct but it;s obvious that it's a DNS issue but where. I use EV1's DNS control panel and do not run my own DNS... yet.

Any help would be great.
neoshell
Resolve.conf is used to assign the DNS server for your server to use to resolve hostnames. You don't have to use EV1's DNS, I always use my own DNS servers both outside the machine in question and (once its all set up) the servers own DNS. You might want to either use the tutorials to get your own BIND setup going and use it or search for a DNS server you can get lookups from.
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