RE: [SLE] SuSE Pro 9.1 - DNS and DHCP interaction - not quite - DDNS

From: Richard Mixon (qwest) (rnmixon_at_qwest.net)
Date: 06/17/04

  • Next message: Berge, Harry ten: "RE: [SLE] Problem in Firefox" 
    Date: Thu, 17 Jun 2004 01:03:59 -0700
To: suse-linux-e@suse.com

    I am very close, but still need a little help :)

    DNS is working and DHCP is working, named does not seem to be able to find my zone files. I have them pretty much as the DHCP
    README.SuSE other bind9 documents indicate. I have the following errors in /var/log/messages:

    Jun 17 00:41:46 packrat named[22835]: starting BIND 9.2.3 -t /var/lib/named -u named
    Jun 17 00:41:46 packrat named[22835]: using 1 CPU
    Jun 17 00:41:46 packrat named[22835]: loading configuration from '/etc/named.conf'
    Jun 17 00:41:46 packrat named[22835]: listening on IPv6 interfaces, port 53
    Jun 17 00:41:46 packrat named[22835]: listening on IPv4 interface lo, 127.0.0.1#53
    Jun 17 00:41:46 packrat named[22835]: binding TCP socket: address in use
    Jun 17 00:41:46 packrat named[22835]: listening on IPv4 interface eth0, 192.168.1.253#53
    Jun 17 00:41:46 packrat named[22835]: binding TCP socket: address in use
    Jun 17 00:41:46 packrat named[22835]: command channel listening on 127.0.0.1#953
    Jun 17 00:41:46 packrat named[22835]: command channel listening on ::1#953
    Jun 17 00:41:46 packrat named[22835]: zone 0.0.127.in-addr.arpa/IN: loaded serial 42
    Jun 17 00:41:46 packrat named[22835]: zone 1.168.192.in-addr.arpa/IN: loading master file dyn/1.168.192.zone: file not found
    Jun 17 00:41:46 packrat named[22835]: zone localhost/IN: loaded serial 42
    Jun 17 00:41:46 packrat named[22835]: zone mixonhome/IN: loading master file dyn/mixonhome.zone: file not found
    Jun 17 00:41:46 packrat named[22835]: running

    My /etc/named.conf.local file contents are:
    ----------------------------
    zone "mixonhome" in {
            type master;
            file "dyn/mixonhome.zone";
            allow-update { key DHCP_UPDATER; };
    };
    zone "1.168.192.in-addr.arpa" in {
            type master;
            file "dyn/1.168.192.zone";
            allow-update { key DHCP_UPDATER; };
    };
    -----------------------------

    Here is "ls-lR" listing of the named related files under /etc:
    -----------------------------
    packrat:/etc # ls -lR name*
    -rw-r----- 1 root named 3881 Jun 16 16:27 named.conf
    -rw-r----- 1 root named 501 Jun 10 23:21 named.conf.include
    -rw-r----- 1 root named 221 Jun 13 19:59 named.conf.local
    -rw-r----- 1 root named 3848 Jun 10 16:17 named.conf.original
    -rw-r----- 1 root named 211 Jun 10 16:26 named.keys

    named.d:
    total 10
    drw-r----- 3 root named 104 Jun 16 20:13 .
    drwxr-xr-x 62 root root 6456 Jun 16 20:33 ..
    drw-rw---- 2 named root 112 Jun 16 20:35 dyn
    -rw-r----- 1 root named 626 Apr 5 19:06 rndc-access.conf

    named.d/dyn:
    total 8
    drw-rw---- 2 named root 112 Jun 16 20:35 .
    drw-r----- 3 root named 104 Jun 16 20:13 ..
    -rw-rw---- 1 named root 272 Jun 16 20:19 1.168.192.zone
    -rw-rw---- 1 named root 284 Jun 16 20:21 mixonhome.zone
    packrat:/etc #
    -----------------------------

    And, here is a similar listing under /var/lib/named/etc.
    -----------------------------
    packrat:/var/lib/named/etc # ls -lR
    .:
    total 24
    drwxr-xr-x 3 root root 264 Jun 16 20:39 .
    drwxr-xr-x 8 root root 288 Jun 17 00:39 ..
    -rw-r--r-- 1 root root 130 Apr 5 17:09 localtime
    -rw-r----- 1 root named 3881 Jun 16 16:27 named.conf
    -rw-r----- 1 root named 501 Jun 10 23:21 named.conf.include
    -rw-r----- 1 root named 221 Jun 13 19:59 named.conf.local
    drwxr-xr-x 3 root root 72 Jun 16 16:23 named.d
    -rw-r----- 1 root named 211 Jun 10 16:26 named.keys
    -rw-r----- 1 root named 141 May 22 22:55 rndc.key

    ./named.d:
    total 0
    drwxr-xr-x 3 root root 72 Jun 16 16:23 .
    drwxr-xr-x 3 root root 264 Jun 16 20:39 ..
    drw-rw---- 2 660 root 112 Jun 17 00:41 dyn

    ./named.d/dyn:
    total 8
    drw-rw---- 2 660 root 112 Jun 17 00:41 .
    drwxr-xr-x 3 root root 72 Jun 16 16:23 ..
    -rw-rw---- 1 named root 272 Jun 16 20:19 1.168.192.zone
    -rw-rw---- 1 named root 284 Jun 16 20:21 mixonhome.zone
    packrat:/var/lib/named/etc #
    -----------------------------

    What else could be wrong? Thank you all.

     - Richard

    > -----Original Message-----
    > From: Richard Mixon (qwest) [mailto:rnmixon@qwest.net]
    > Sent: Friday, June 11, 2004 8:54 PM
    > To: poeml@cmdline.net
    > Subject: RE: RE: [SLE] SuSE Pro 9.1 - DNS and DHCP interaction - not
    > quite - DDNS
    >
    >
    > Peter,
    >
    > Thanks for the additional explanation (and also to David Rankin for more explanation). After doing a litter further
    > reading, it is becoming clear. The SuSE YAST interface for both DHCP server and DNS server has provisions for enabling
    > DDNS between the two, whereas DHCP will pass updates to DNS appropriately. There is a wizard to generate the required key .
    >
    > I have it partially working now. Hopefully a little more tweaking and it is done. Really a very nice, low maintenance
    > solution - even for a small home LAN.
    >
    > Thanks - Richard
    >
    > > -----Original Message-----
    > > From: poeml@poeml.de [mailto:poeml@poeml.de]On Behalf Of
    > > poeml@cmdline.net
    > > Sent: Friday, June 11, 2004 1:30 PM
    > > To: suse-linux-e@suse.com
    > > Subject: Re: RE: [SLE] SuSE Pro 9.1 - DNS and DHCP interaction - not
    > > quite
    > >
    > >
    > > On Wed, Jun 09, 2004 at 06:55:45PM -0700, Richard Mixon (qwest) wrote:
    > > > OK, I've done my research on DDSN. But everything I read about DDNS indicates its only purpose it to let folks on the
    > > internet get
    > > > to your home website (or other IP server) using a hostname, even if your IP address is assigned and renewed using DHCP
    > > (i.e. you do
    > > > not have a static IP address).
    > >
    > > You are referring to what is well-known as DynDNS. It is a publicly
    > > available DDNS server for your home machine, and the update is initiated
    > > with a custom application using a custom protocol (not TSIG based to my
    > > knowledge).
    > >
    > > > I thought maybe DDNS is also a more generic feature of DNS servers. I looked through the BIND9 README and FAQ. I do see
    > > the mention
    > > > of dynamic updates, an "allow-updates" parm and something called TSIG. Is that the feature I want?
    > >
    > > Exactly. Unfortunately I cannot point to much more information either.
    > > But it's not so complicated. The needed information to set up the TSIG
    > > key and server configuration is in the man pages, and it should be easy
    > > going with the HOWTO I mentioned before.
    > >
    > > The best resource about DHCP in general (and probably also about
    > > dynamical DNS) is the DHCP book from Ted Lemon and Ralph Droms.
    > >
    > > Peter
    > > 

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