Date: Fri, 21 Nov 2003 19:21:45 +0100 (CET) From: Peter Ulrich Kruppa <root@pukruppa.de> To: Matthew Seaman <m.seaman@infracaninophile.co.uk> Cc: freebsd-questions@freebsd.org Subject: Re: Static IP and fully qualified domain names Message-ID: <20031121192037.X743@pukruppa.net> In-Reply-To: <20031121172527.GC63337@happy-idiot-talk.infracaninophile.co.uk> References: <20031121161852.H28859@pukruppa.net> <200311211542.hALFg3pd067288@fw.farid-hajji.net> <6.0.0.22.0.20031121105316.01b83340@pop.face2interface.com> <20031121172527.GC63337@happy-idiot-talk.infracaninophile.co.uk>
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On Fri, 21 Nov 2003, Matthew Seaman wrote:
> On Fri, Nov 21, 2003 at 10:54:21AM -0500, Marty Landman wrote:
> > At 10:42 AM 11/21/2003, Cordula's Web wrote:
> > >>
> > >> From reading manuals one should think, that now I could give my
> > >> machines names like one.pukruppa.net, two.pukruppa.net, etc...
> > >> and all these would be reachable via internet - but they aren't.
> > >> The only one that can be accessed is pukruppa.net .
> > >
> > >You need to add A records (or CNAME records) to your DNS
> > >zone pukruppa.net:
> >
> > I'm a newbie faced with a similar (I think) problem; only in my case I'd
> > like to do the required DNS mapping on my intranet. Have no clue so plz be
> > gentle?
>
> On an intranet setting this sort of stuff up in the DNS is easy.
> Unless you have a particularly large and complicated setup, you don't
> need to bother with DNS delegation; neither do you need to worry about
> CIDR and other things that complicate life.
>
> Lets assume that the domain you're using in your intranet is
> 'example.com' and you've chose to use the 192.168.0.0/24 subnet for
> all of your IP numbering.
>
> You need to set up a machine as DNS server for your intranet. In the
> named.conf file for that machine, configure it to be the authoritative
> server for the example.com. and 0.168.192.in-addr.arpa. zones by
> adding (inter alia):
>
> acl localmachines {
> 127.0.0.1;
> 192.168.0.0/24;
> };
>
> zone "example.com" in {
> type master;
> file "p/example.com";
> allow-query {
> localmachines;
> };
> allow-transfer {
> none;
> };
> notify no;
> };
>
> zone "0.168.192.in-addr.arpa" in {
> type master;
> file "p/0.168.192.in-addr.arpa";
> allow-query {
> localmachines;
> };
> allow-transfer {
> none;
> };
> notify no;
> };
>
> where the zone data files might look something like this.
>
> example.com:
>
> $TTL 3600
>
> @ IN SOA ns0.example.com. hostmaster.example.com. (
> 2003112100 ; Serial
> 10800 ; Refresh (3H)
> 3600 ; Retry (1H)
> 604800 ; Expire (1W)
> 43200 ) ; Minimum (12H)
> NS ns0
> MX 10 smtp
> ;
> localhost A 127.0.0.1
> MX 10 smtp
> ;
> net A 192.168.0.0
> MX 10 smtp
> ;
> ns0 A 192.168.0.1
> MX 10 smtp
> ;
> smtp A 192.168.0.2
> MX 10 smtp
> ;
> foo A 192.168.0.3
> MX 10 smtp
> www-intra CNAME foo
> ;
> ;[...other data...]
> ;
> broadcast A 192.168.0.255
> MX 10 smtp
> ;
> ; That's All Folks!
> ;
>
> 0.168.192.in-addr.arpa:
>
> $TTL 3600
>
> @ IN SOA ns0.example.com. hostmaster.example.com. (
> 2003112100 ; Serial
> 10800 ; Refresh (3H)
> 3600 ; Retry (1H)
> 604800 ; Expire (1W)
> 43200 ) ; Minimum (12H)
> NS ns0.example.com.
> ;
> 0 PTR net.example.com.
> 1 PTR ns0.example.com.
> 2 PTR smtp.example.com.
> 3 PTR foo.example.com.
> ;[...]
> 255 PTR broadcast.example.com.
> ;
> ; That's All Folks!
> ;
>
> Simple eh? Actually, if all this is pretty much gibberish to you, I
> recommend getting hold of the Cricket book: "DNS and BIND", 4th Ed,
> P. Albitz and C. Liu, O'Reilly and associates, Sebastopol, CA. ISBN
> 0-596-00158-4 which will explain things with extreme lucidity.
I guess, I will have to do some reading.
Thanks,
Uli.
>
> Cheers,
>
> Matthew
>
> --
> Dr Matthew J Seaman MA, D.Phil. 26 The Paddocks
> Savill Way
> PGP: http://www.infracaninophile.co.uk/pgpkey Marlow
> Tel: +44 1628 476614 Bucks., SL7 1TH UK
>
+---------------------------+
| Peter Ulrich Kruppa |
| Wuppertal |
| Germany |
+---------------------------+
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