Forums Connection Issues Couldn't look up your hostname - Google Fiber

Hello,

I recently switched to Google Fiber for an ISP and ever since, my hostname has been broken on IRC. When trying to connect to any IRC (I'm usually on EFNet), it gives the following error:

[01:16] -irc.efnet.org- *** Processing connection to irc.Prison.NET
[01:16] -irc.efnet.org- *** Looking up your hostname...
[01:16] -irc.efnet.org- *** Checking Ident
-
[01:16] * Identd request from 67.218.118.62
[01:16] * Identd replied: 56548, 6666 : USERID : UNIX : dc
-
[01:16] -irc.efnet.org- *** Got Ident response
[01:16] -irc.efnet.org- *** Couldn't look up your hostname

I've tried different IRC networks and none of them can look up my hostname. I've checked various reverse DNS sites and they can all look up my hostname and resolve as googlefiber.net without any issues. mIRC also shows my local host as googlefiber.net after connecting.

I tried doing a /who *.googlefiber.net on EFnet and it's not returning any results so it seems like I'm not the only one. Are the DNS servers that IRC use simply broken and can't resolve Google Fiber? It's not a huge issue but it has me at a loss on why it's not working and just one of those things that bugs me because I can't figure it out.

Any ideas or suggestions?

For IRC servers, it is not enough that your IP address can be resolved a hostname. The IRC server also checks that that hostname can be resolved back to that same IP address. That two-way check prevents hostname spoofing, because it is relatively easy to make a privately owned IP address resolve to, say, fbi.gov.

I would guess that in your case, the problem is in the host-to-IP part of the check. If that is indeed the case, only Google can fix that issue for you.