DNS/BIND canonical name puzzle
Matthew Carpenter
matt
Mon May 17 11:57:50 PDT 2004
I would have to guess that bind doesn't like that the fact that the record
uses the same name as the zone. But I can't see a great reason why not... I
typically will maintain the "zone.com" records separately and have all the MX
and NS records use "something.zone.com". sorry I'm not a lot of help here.
On Thu, 1 Jan 2004 17:03:14 -0800 (PST)
"Kevin O'Gorman" <kevin at kosmanor.com> wrote:
> On Thu, 1 Jan 2004, Matthew Carpenter wrote:
>
> > Make sure you are using an A record for NS and MX records. I am not sure
> > looking at the diff, which you are using. Could you send the "broken
> > file"?
>
> To interpret this kind of diff (unified diff), consider the file without
> any of the lines starting with a "+". The lines with "+" or "-" are the
> ones where the two files differ.
>
> Anyway, here's the bad file:
>
> ------------------- CUT HERE ----------------------------
> ;
> ; "DNS and BIND" 3rd Ed calls this a "db" file. The description is
> ; on page 60ff.
> ;
> $ttl 7200
> kosmanor.com. IN SOA kosmanor.com. kogorman.pacbell.net. (
> 200312037
> 900
> 7200
> 14400
> 1800 )
> ;
> ; Nameservers
> ;
> kosmanor.com. IN NS kosmanor.com.
> kosmanor.com. IN NS dns3.ayuda.com.
> kosmanor.com. IN NS dns0.ayuda.com.
> ;
> ; Host addresses
> ;
> kosmanor.com. IN A 64.166.164.49
> glynnis.kosmanor.com. IN A 64.166.164.50
> nat.kosmanor.com. IN A 64.166.164.53
> ;
> ; Aliases
> ;
> treat.kosmanor.com. IN CNAME kosmanor.com.
> alias.kosmanor.com. IN CNAME kosmanor.com.
> cilug.kosmanor.com. IN CNAME kosmanor.com.
> thlpets.kosmanor.com. IN CNAME kosmanor.com.
> hex.kosmanor.com. IN CNAME kosmanor.com.
> www.kosmanor.com. IN CNAME kosmanor.com.
> mail.kosmanor.com. IN CNAME kosmanor.com.
> ;
> ; Mail exchangers
> ;
> kosmanor.com. IN MX 10 kosmanor.com.
> treat.kosmanor.com. IN MX 10 kosmanor.com.
> glynnis.kosmanor.com. IN MX 10 kosmanor.com.
> ;
> ; Host info
> ;
> glynnis.kosmanor.com. IN HINFO P-III Linux
> nat.kosmanor.com. IN HINFO Linksys Router
> treat.kosmanor.com. IN HINFO Dual-Xeon Linux
> ------------------- CUT HERE ----------------------------
>
>
>
> >
> > On Mon, 29 Dec 2003 15:36:34 -0800 (PST)
> > "Kevin O'Gorman" <kevin at kosmanor.com> wrote:
> >
> > > On Mon, 29 Dec 2003, Jay Nugent wrote:
> > >
> > > > Greetings Kevin,
> > > > When you 'rndc reload' BIND, do you tail the /var/log/messages file
> > > > to
> > > > see if it tells you about any errors in this zone file?
> > > >
> > > > --- Jay
> > >
> > > I did just now, but I'm not sure what it's telling me. I notice that
> > > the failure comments about CNAME, but mentions a line with an MX
> > > record. I also notice that it does not say it's sending notifies,
> > > nor does it mention the serial number (which I have been carefully
> > > bumping up by 1 or 2 for each experiment). Here's the failure:
> > >
> > > Dec 29 15:28:39 treat named[6439]: starting BIND 9.2.1 -u named
> > > Dec 29 15:28:39 treat named[6439]: using 4 CPUs
> > > Dec 29 15:28:39 treat named[6442]: loading configuration from
> > > '/etc/named.conf' Dec 29 15:28:39 treat named[6442]: no IPv6 interfaces
> > > found Dec 29 15:28:39 treat named[6442]: listening on IPv4 interface lo,
> > > 127.0.0.1#53 Dec 29 15:28:39 treat named[6442]: listening on IPv4
> > > interface eth0, 192.168.1.149#53 Dec 29 15:28:39 treat named[6442]:
> > > listening on IPv4 interface eth1, 64.166.164.49#53 Dec 29 15:28:39 treat
> > > named[6442]: command channel listening on 127.0.0.1#953 Dec 29 15:28:39
> > > treat named[6442]: dns_master_load: /etc/kosmanor.com.hosts:38:
> > > treat.kosmanor.com: CNAME and other data Dec 29 15:28:39 treat
> > > named[6442]: zone kosmanor.com/IN: loading master file
> > > /etc/kosmanor.com.hosts: CNAME and other data Dec 29 15:28:39 treat
> > > named[6442]: running Dec 29 15:28:39 treat named: named startup
> > > succeeded
> > >
> > >
> > > Here's the immediately following load of the good file:
> > >
> > > Dec 29 15:28:56 treat named[6496]: starting BIND 9.2.1 -u named
> > > Dec 29 15:28:56 treat named[6496]: using 4 CPUs
> > > Dec 29 15:28:56 treat named[6499]: loading configuration from
> > > '/etc/named.conf' Dec 29 15:28:56 treat named[6499]: no IPv6 interfaces
> > > found Dec 29 15:28:56 treat named[6499]: listening on IPv4 interface lo,
> > > 127.0.0.1#53 Dec 29 15:28:56 treat named[6499]: listening on IPv4
> > > interface eth0, 192.168.1.149#53 Dec 29 15:28:56 treat named[6499]:
> > > listening on IPv4 interface eth1, 64.166.164.49#53 Dec 29 15:28:56 treat
> > > named[6499]: command channel listening on 127.0.0.1#953 Dec 29 15:28:56
> > > treat named[6499]: zone kosmanor.com/IN: loaded serial 200312038 Dec 29
> > > 15:28:56 treat named[6499]: running Dec 29 15:28:56 treat named[6500]:
> > > zone kosmanor.com/IN: sending notifies (serial 200312038) Dec 29
> > > 15:28:56 treat named: named startup succeeded[root at treat init.d]#
> > >
> > > Finally, here's a diff of the two configurations:
> > >
> > >
> > > [root at treat etc]# diff -u20 kosmanor.com.hosts.bad3
> > > kosmanor.com.hosts.bak8
> > > --- kosmanor.com.hosts.bad3 Mon Dec 29 15:28:06 2003
> > > +++ kosmanor.com.hosts.bak8 Mon Dec 29 15:28:14 2003
> > > @@ -1,45 +1,44 @@
> > > ;
> > > ; "DNS and BIND" 3rd Ed calls this a "db" file. The description is
> > > ; on page 60ff.
> > > ;
> > > $ttl 7200
> > > -kosmanor.com. IN SOA kosmanor.com. kogorman.pacbell.net. (
> > > - 200312037
> > > +kosmanor.com. IN SOA treat.kosmanor.com.
> > > kogorman.pacbell.net. (
> > > + 200312038
> > > 900
> > > 7200
> > > 14400
> > > 1800 )
> > > ;
> > > ; Nameservers
> > > ;
> > > -kosmanor.com. IN NS kosmanor.com.
> > > +kosmanor.com. IN NS treat.kosmanor.com.
> > > kosmanor.com. IN NS dns3.ayuda.com.
> > > kosmanor.com. IN NS dns0.ayuda.com.
> > > ;
> > > ; Host addresses
> > > ;
> > > -kosmanor.com. IN A 64.166.164.49
> > > +treat.kosmanor.com. IN A 64.166.164.49
> > > glynnis.kosmanor.com. IN A 64.166.164.50
> > > nat.kosmanor.com. IN A 64.166.164.53
> > > ;
> > > ; Aliases
> > > ;
> > > -treat.kosmanor.com. IN CNAME kosmanor.com.
> > > -alias.kosmanor.com. IN CNAME kosmanor.com.
> > > -cilug.kosmanor.com. IN CNAME kosmanor.com.
> > > -thlpets.kosmanor.com. IN CNAME kosmanor.com.
> > > -hex.kosmanor.com. IN CNAME kosmanor.com.
> > > -www.kosmanor.com. IN CNAME kosmanor.com.
> > > -mail.kosmanor.com. IN CNAME kosmanor.com.
> > > +kosmanor.com. IN A 64.166.164.49
> > > +alias.kosmanor.com. IN CNAME treat.kosmanor.com.
> > > +cilug.kosmanor.com. IN CNAME treat.kosmanor.com.
> > > +thlpets.kosmanor.com. IN CNAME treat.kosmanor.com.
> > > +hex.kosmanor.com. IN CNAME treat.kosmanor.com.
> > > +www.kosmanor.com. IN CNAME treat.kosmanor.com.
> > > +mail.kosmanor.com. IN CNAME treat.kosmanor.com.
> > > ;
> > > ; Mail exchangers
> > > ;
> > > -kosmanor.com. IN MX 10 kosmanor.com.
> > > -treat.kosmanor.com. IN MX 10 kosmanor.com.
> > > -glynnis.kosmanor.com. IN MX 10 kosmanor.com.
> > > +kosmanor.com. IN MX 10 treat.kosmanor.com.
> > > +glynnis.kosmanor.com. IN MX 10 treat.kosmanor.com.
> > > ;
> > > ; Host info
> > > ;
> > > glynnis.kosmanor.com. IN HINFO P-III Linux
> > > nat.kosmanor.com. IN HINFO Linksys Router
> > > treat.kosmanor.com. IN HINFO Dual-Xeon Linux
> > > [root at treat etc]#
> > >
> > >
> > >
> > >
> > >
> > > >
> > > >
> > > > On Mon, 29 Dec 2003, Kevin O'Gorman wrote:
> > > >
> > > > >
> > > > > I've got a small domain that has all my machines, and it's working
> > > > > okay but I can't seem to do some of the things that I want.
> > > > > This mostly surrounds the resource records for the main machine,
> > > > > treat.kosmanor.com.
> > > > >
> > > > > The database file contains these records right now (among others):
> > > > > kosmanor.com. IN SOA treat.kosmanor.com. kogorman.pacbell.net. (
> > > > > 200312030
> > > > > 900
> > > > > 7200
> > > > > 14400
> > > > > 1800 )
> > > > > kosmanor.com. IN NS treat.kosmanor.com.
> > > > > treat.kosmanor.com. IN A 64.166.164.49
> > > > > kosmanor.com. IN A 64.166.164.49
> > > > >
> > > > > This works okay, but I've been thinking to make just one of these
> > > > > names the canonical name. It fails when I try.
> > > > >
> > > > > It seems to me it would be best if "kosmanor.com" were the
> > > > > canonical name, because that's what goes in return addresses and
> > > > > such, and I use some services that are very picky about where
> > > > > the mail comes from. However, if I change these lines to
> > > > >
> > > > > kosmanor.com. IN SOA kosmanor.com. kogorman.pacbell.net. (
> > > > > 200312031
> > > > > 900
> > > > > 7200
> > > > > 14400
> > > > > 1800 )
> > > > > kosmanor.com. IN NS kosmanor.com.
> > > > > kosmanor.com. IN A 64.166.164.49
> > > > > treat.kosmanor.com. IN CNAME kosmanor.com.
> > > > >
> > > > >
> > > > > Now, the nameservers cannot resolve any of the names in this domain.
> > > > >
> > > > >
> > > > > This seems like it should work, but it doesn't. Any clues?
> > > > >
> > > > > ++ kevin
> > > > >
> > > > >
> > > > > --
> > > > > Dr. Kevin O'Gorman (805) 756-2986 mailto:kogorman at calpoly.edu
> > > > > Home Page: http://www.csc.calpoly.edu/~kogorman
> > > > >
> > > > > _______________________________________________
> > > > > Linux-users mailing list
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> > > > > Unsubscribe/Suspend/Etc ->
> > > > > http://smtp.linux-sxs.org/mailman/listinfo/linux-users
> > > > >
> > > >
> > > >
> > > > "Those that sacrifice essential liberty to obtain a little temporary
> > > > safety
> > > > deserve neither liberty nor safety." -- Ben Franklin (1759)
> > > > +--------------------------------------------------------------------
> > > > ----+| Jay Nugent jjn at nuge.com (734)484-5105 (734)544-4326/Fax
> > > > |
> > > > | Nugent Telecommunications [www.nuge.com] (734)649-0850/Cell
> > > > |
> > > > | Internet Consulting/Linux SysAdmin/Engineering & Design/ISP
> > > > Reseller || ISP Monitoring [www.ispmonitor.net] ISP & Modem
> > > > Performance Monitoring || Web-Pegasus [www.webpegasus.com] Web
> > > > Hosting/DNS Hosting/Shell Accts|| LinuxNIC, Inc. [www.linuxnic.net]
> > > > Registrar of the .linux TLD
> > > > |+-------------------------------------------------------------------
> > > > -----+
> > > > 12:01pm up 103 days, 5:10, 4 users, load average: 0.44, 0.15,
> > > > 0.10
> > > >
> > > >
> > >
> > > --
> > > Dr. Kevin O'Gorman (805) 756-2986 mailto:kogorman at calpoly.edu
> > > Home Page: http://www.csc.calpoly.edu/~kogorman
> > >
> > > _______________________________________________
> > > Linux-users mailing list
> > > Linux-users at smtp.linux-sxs.org
> > > Unsubscribe/Suspend/Etc ->
> > > http://smtp.linux-sxs.org/mailman/listinfo/linux-users
> > >
> > >
> >
> >
> >
>
> --
> Dr. Kevin O'Gorman (805) 756-2986 mailto:kogorman at calpoly.edu
> Home Page: http://www.csc.calpoly.edu/~kogorman
>
> _______________________________________________
> Linux-users mailing list
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>
>
--
Matthew Carpenter
matt at eisgr.com http://www.eisgr.com/
Enterprise Information Systems
* Network Service Appliances
* Network Consulting, Integration & Support
* Web Integration and E-Business
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