Somewhat simple DNS setup...

Kevin Darcy kcd at daimlerchrysler.com
Thu Jan 4 16:44:24 UTC 2001


You're using CNAMEs (mail.cwe.cx and ns.cwe.cx) on the righthand side of an NS record and an
MX record. This is illegal. You should use the A record (cwe.cx) instead.

On the other hand, there's nothing inherently wrong with having multiple A records referring to the
same address. The only minor problem is that it creates a reverse-record ambiguity, but that's usually
harmless.


- Kevin


Craig Miller wrote:

> Hi, everybody-
>
> Been lurking here for a couple of months now - I'm learning a lot, but
> want to double-check what I've done so far.  First, a brief history.  A
> guy I met on the net (thanks Scott) originally setup my DNS, so I have
> had a working DNS for a couple of years now without knowing what everything
> meant. :)  When I got my DSL and had to change IP's, I also went ahead and
> learned a bit about DNS from y'all, but I'd like to verify my setup and ask
> if anyone can help me troubleshoot a problem.
>
> My problem is this:  People at cableone.net can't resolve any of the
> hosts on my domain.  I've tried using ns1.cableone.net's ns to resolve
> my hosts, and I get no reply.  Beyond this, I have no idea how to
> troubleshoot the problem.  Most other ISP's I have checked work OK,
> with the exception of sprint.net...
>
> Here's my cwe.db file: (I got the format from http://www.ripe.net/ripe/docs/ripe-192.html)
>
> ;*****file starts
> cwe.cx.              SOA     ns.cwe.cx. admin.cwe.cx. (
>                              2001010405  ;    serial number
>                              1D          ;    refresh: 1 day
>                              1H          ;    retry: 60 minutes
>                              7D          ;    expire: 7 days
>                              1D )        ;    minimum: 60 minutes
> cwe.cx.              NS      ns.cwe.cx.
> cwe.cx.              NS      loki.cwe.cx.
> cwe.cx.              NS      siouxlandchamber.com.
> cwe.cx.              MX      10 mail.cwe.cx.
> cwe.cx.              HINFO   "IBM/P233"  "OS/2 Warp"
> ;
> cwe.cx.              A      12.29.146.34
> ;
> gatekeeper.cwe.cx.   A      12.29.146.33
> hermod.cwe.cx.       A      12.29.146.34
> vhost.cwe.cx.        A      12.29.146.35
> odin.cwe.cx.         A      12.29.146.36
> loki.cwe.cx.         A      12.29.146.37
> thor.cwe.cx.         A      12.29.146.38
> hugin.cwe.cx.        A      12.29.146.39
> munin.cwe.cx.        A      12.29.146.40
> freya.cwe.cx.        A      12.29.146.41
> narve.cwe.cx.        A      12.29.146.42
> njord.cwe.cx.        A      12.29.146.43
> heimdall.cwe.cx.     A      12.29.146.44
> vali.cwe.cx.         A      12.29.146.45
> sigyn.cwe.cx.        A      12.29.146.46
> ns.cwe.cx.           CNAME  cwe.cx.
> mail.cwe.cx.         CNAME  cwe.cx.
> www.cwe.cx.          CNAME  cwe.cx.
> ftp.cwe.cx.          CNAME  cwe.cx.
> mftp.cwe.cx.         CNAME  cwe.cx.
> telnet.cwe.cx.       CNAME  cwe.cx.
> irc.cwe.cx.          CNAME  cwe.cx.
> bbs.cwe.cx.          CNAME  cwe.cx.
> saints.cwe.cx.       CNAME  vhost.cwe.cx.
> mhess.cwe.cx.        CNAME  vhost.cwe.cx.
> ; End of Zone
> ;*******file ends
>
> Any suggestions you can give, or if you can guess the trouble with
> cableone.net, would be greatly appreciated.  BTW, I realize I have
> two A records for 12.29.146.34, but so far it seems to work and I
> changed that after cableone started having problems.  Is there a
> more elegant way to do it, or should I CNAME hermod.cwe.cx to cwe.cx?
>
> Oh, one more question.  What's the correct way to have an MX record
> for saints.cwe.cx (a CNAME itself)?  I'd like people to be able to
> send mail to someone at saints.cwe.cx and have my mail handler at cwe.cx
> process the mail.
>
> Thanks much, I know this is a long post with a lot of questions, but I
> think I'm really getting close to finally having it down thanks to y'all.
>
> Craig
>
> --
>
> Craig Miller <mailto:craiger at cwe.cx>
> Owner, CWE Solutions <http://cwe.cx/>
> ICQ# 43937751
>
> Finger craiger at cwe.cx for more info and my PGP public key.
>
> <a href="http://www.websitesponsors.com/cgi-bin/2000/welcome?cwecx">Earn $$$ From Your Website!</a>
>
> CWE's Tag-O-Matic sez:
> Since Americans throw rice at weddings, do Asians throw hamburgers?






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