LinuxQuestions.org
Download your favorite Linux distribution at LQ ISO.
Home Forums Tutorials Articles Register
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Distributions > Slackware
User Name
Password
Slackware This Forum is for the discussion of Slackware Linux.

Notices


Reply
  Search this Thread
Old 12-14-2003, 02:12 PM   #1
Neoslak
LQ Newbie
 
Registered: Nov 2002
Posts: 22

Rep: Reputation: 15
forward and reverse DNS don't match


This is a confusing topic to me. I've tried to decipher the answer to this question... from FAQs, forums, google, etc. and figure out specifically what, if anything, it is I need to do.
It seems like everywhere I look to resolve this confusion, the how-tos, FAQs, etc. and all the examples I find are for servers with a static ip.

Here is the problem:

I have DSL connection with a dynamic IP on eth0 on my Slackware Linux firewall/nat/gateway. I'm using the IPTables/NetFilter NARC firewall and my lan behind my firewall is on my 192.168.0. network.

When I use XChat to connect to IRC I always get the following message and a lengthy delay before it finally connects:

--- Looking up irc.freenode.net..
--- Connecting to orwell.freenode.net (213.28.116.205) port 6667..
--- Connected. Now logging in..
--- *** Looking up your hostname...
--- *** Checking ident
--- *** Your forward and reverse DNS don't match
--- *** No identd (auth) response

I don't have a true registered 'fully qualified domain name', although I do have an account on a DHS server that routes connections to me if needed.

On my lan I have various hosts on my 'made up' domain name. My /etc/hosts files look something like this:

127.0.0.1 localhost
192.168.0.14 jepetus.smatrix.org jepetus
192.168.0.24 azreal.smatrix.org azreal
192.168.0.2 genesis.smatrix.org genesis
192.168.0.3 lordsoth.smatrix.org lordsoth
192.168.0.7 lenny.smatrix.org lenny
192.168.0.11 zeus.smatrix.org zeus

my resolv.conf files point to my ISP's nameservers.

Is this 'reverse DNS' thing something that I need to put in named.conf? I haven't really tried to set up anything except a local caching name server... that I'm not even really using, and setting up it was simply following steps on a how-to...

So, what do I need to do? Edit named.conf? With what? Do I have to have a name server to resolve this? Do I edit some configuration file for identd? tcpd? inetd? What??? Does my ISP have to provide a reverse lookup or something? Is there some ports I need to enable on my firewall (53?)?


Dazed and Confused -

Neoslak

-----
Linux, the free OS....except for your SOUL! MOUHAHAHAHA!
 
  


Reply



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
Reverse DNS Webbie Linux - Networking 4 10-10-2005 07:49 PM
reverse DNS in C? Thinking Programming 3 04-27-2005 12:05 PM
Why do forward AND reverse lookups? veeruk101 Linux - Newbie 3 03-31-2005 10:22 AM
Reverse DNS davespink Linux - Networking 2 02-27-2005 06:44 PM
Reverse DNS Pyro2k4 Linux - Networking 8 09-06-2004 04:59 PM

LinuxQuestions.org > Forums > Linux Forums > Linux - Distributions > Slackware

All times are GMT -5. The time now is 06:24 PM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Open Source Consulting | Domain Registration