Re: DDNS: help updates timing out.

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You've got 'zone blazebox.db' in the bind and dhcp config files, but
you use a domainname of 'blazebox.homeip.net'. So dhcpd is trying to
update a non-existant zone - bind just ignores the request hence the
timeout.

regards,
-glenn

> X-Original-To: dhcp-server@xxxxxxx
> Date: Sun, 26 Jan 2003 17:59:49 -0500 (EST)
> Subject: DDNS: help updates timing out.
> From: paul@xxxxxxxxxxxxxxxxxxx
> To: dhcp-server@xxxxxxx
> X-Priority: 3
> Importance: Normal
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VDF: 6.17.0.19; host: blazebox.homeip.net)
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> X-original-sender: paul@xxxxxxxxxxxxxxxxxxx
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> 
> 
> Hello folks,
> 
> I am running FreeBSD 5.0 with latest ISC bind/dhcpd servers.
> 
> I have a problem with DDNS updates which are timing out and i can't seem
> to find the cause of those timeouts.
> 
> I belive my config files are setup properly because DDNS works partialy
> when adding reverse maps.The clients are Win2000 and WinXP.
> 
> This is what my logs say:
> 
> Jan 26 17:01:54 blazebox dhcpd: Unable to add forward map from
> blaze.blazebox.homeip.net to 192.168.0.43: timed out
> Jan 26 17:03:20 blazebox dhcpd: Unable to add forward map from
> dellbox.blazebox.homeip.net to 192.168.0.254: timed out
> Jan 26 17:23:27 blazebox dhcpd: Internet Software Consortium DHCP Server
> V3.0.1rc11
> Jan 26 17:23:27 blazebox dhcpd: Copyright 1995-2003 Internet Software
> Consortium.
> Jan 26 17:23:27 blazebox dhcpd: All rights reserved.
> Jan 26 17:23:27 blazebox dhcpd: For info, please visit
> http://www.isc.org/products/DHCP
> Jan 26 17:23:27 blazebox dhcpd: Wrote 2 leases to leases file.
> Jan 26 17:23:42 blazebox dhcpd: added reverse map from
> 43.0.168.192.in-addr.arpa to blaze.blazebox.homeip.net
> Jan 26 17:23:42 blazebox dhcpd: DHCPREQUEST for 192.168.0.43 from
> 00:a0:cc:32:81:44 (blaze) via fxp0
> Jan 26 17:23:42 blazebox dhcpd: DHCPACK on 192.168.0.43 to
> 00:a0:cc:32:81:44 (blaze) via fxp0
> Jan 26 17:23:51 blazebox dhcpd: added reverse map from
> 43.0.168.192.in-addr.arpa to blaze.homeip.net
> Jan 26 17:23:51 blazebox dhcpd: DHCPREQUEST for 192.168.0.43 from
> 00:a0:cc:32:81:44 (blaze) via fxp0
> Jan 26 17:23:51 blazebox dhcpd: DHCPACK on 192.168.0.43 to
> 00:a0:cc:32:81:44 (blaze) via fxp0
> Jan 26 17:24:06 blazebox dhcpd: Unable to add forward map from
> blaze.blazebox.homeip.net to 192.168.0.43: timed out
> Jan 26 17:24:06 blazebox dhcpd: DHCPREQUEST for 192.168.0.43 from
> 00:a0:cc:32:81:44 (blaze) via fxp0
> Jan 26 17:24:06 blazebox dhcpd: DHCPACK on 192.168.0.43 to
> 00:a0:cc:32:81:44 (blaze) via fxp0
> 
> 
> Here is my config files:
> 
> named.conf (just the relevant bits):
> 
> key rndc_key {
>         algorithm       HMAC-MD5;
>         secret
> 
"p5zOSCo1BacMdKkmB9D2kDh7ndgCWtWNjuBJFBfE3cd1cl2bhIKzxIdSZe7sPgC4nmlFPMNGsb1f4cC
hlKAWrw==";
> };
> 
> controls { inet 127.0.0.1 allow { localhost; } keys { rndc_key; };
>            inet 192.168.0.1 allow { blazebox; } keys { rndc_key; };
> };
> 
> // zone for access to domain
> zone "blazebox.db" in {
>         type master;
>         notify yes;
>         allow-update { key rndc_key; 192.168.0.1; };
>         file "blazebox.db";
> };
> 
> // zone for access to domain using ip
> zone "0.168.192.in-addr.arpa" in {
>         type master;
>         notify yes;
>         allow-update { key rndc_key; 192.168.0.1; };
>         file "db.192.168.0";
> };
> 
> dhcpd.conf
> 
> option subnet-mask 255.255.255.0;
> option broadcast-address 192.168.0.255;
> option netbios-name-servers 192.168.0.1;
> server-identifier blazebox;
> ddns-update-style interim;
> allow client-updates;
> one-lease-per-client on;
> ddns-updates on;
> ddns-ttl 3600;
> use-host-decl-names on;
> 
> key rndc_key {
>     algorithm hmac-md5;
>     secret
> 
"p5zOSCo1BacMdKkmB9D2kDh7ndgCWtWNjuBJFBfE3cd1cl2bhIKzxIdSZe7sPgC4nmlFPMNGsb1f4cC
hlKAWrw==";
> };
> 
> zone blazebox.db. {
>      primary 192.168.0.1;
>      key rndc_key;
> }
> 
> zone 0.168.192.in-addr.arpa. {
>      primary 192.168.0.1;
>      key rndc_key;
> }
> 
> option domain-name "blazebox.homeip.net";
> option domain-name-servers 192.168.0.1
> 
> default-lease-time 7200;
> max-lease-time 36000;
> authoritative;
> log-facility local7;
> 
> subnet 192.168.1.0 netmask 255.255.255.0 {
> }
> 
> subnet 192.168.0.0 netmask 255.255.255.0 {
>   range 192.168.0.2 192.168.0.254;
>   option routers 192.168.0.1;
>   ddns-domainname = "blazebox.homeip.net";
>   ddns-rev-domainname = "in-addr.arpa";
> }
> 
> bind has debug enabled and this is what i get from the log:
> 
> Jan 26 07:40:12.860 update: info: client 192.168.0.1#54363: updating zone
> '0.168.192.in-addr.arpa/IN': deleting an rrset
> Jan 26 07:40:12.860 update: info: client 192.168.0.1#54363: updating zone
> '0.168.192.in-addr.arpa/IN': adding an RR
> 
> 
> The db.192.168.0 file:
> 
> $ORIGIN .
> $TTL 604800     ; 1 week
> 0.168.192.in-addr.arpa  IN SOA  blazebox.homeip.net.
> postmaster.blazebox.homeip.net. (
>                                 2002111427 ; serial
>                                 28800      ; refresh (8 hours)
>                                 14400      ; retry (4 hours)
>                                 604800     ; expire (1 week)
>                                 86400      ; minimum (1 day)
>                                 )
>                         NS      blazebox.homeip.net.
> $ORIGIN 0.168.192.in-addr.arpa.
> 1                       PTR     blazebox.homeip.net.
> $TTL 3600       ; 1 hour
> 254                     PTR     dellbox.blazebox.homeip.net.
> 43                      PTR     blaze.homeip.net.
> 
> The reverse map gets set and the journal file is created for the client
> 
> The blazebox.db file:
> 
> $TTL 3D
> @       IN      SOA     blazebox.homeip.net.
> postmaster.blazebox.homeip.net. (
>                         2002111401 ;  serial number
>                         28800 ;       rafresh
>                         14400 ;
>                         604800 ;      expiration
>                         86400 );
> 
> @       IN      NS      blazebox
> @       IN      NS      blazebox.homeip.net.
> 
> @       IN      MX      10 blazebox
> @       IN      MX      10 blazebox.homeip.net.
> @       IN      MX      20 blaze.homeip.net.
> 
> @       IN A    127.0.0.1
> @       IN A    192.168.0.1
> 
> localhost       IN A    127.0.0.1
> blazebox        IN A    192.168.0.1
> www             IN A    192.168.0.1
> ftp             IN A    192.168.0.1
> mail            IN MX 10   192.168.0.1
> ns              IN A    192.168.0.1
> router          IN A    192.168.0.1
> proxy           IN A    192.168.0.1
> blaze           IN A    192.168.0.43
> stonebox        IN A    192.168.0.253
> dellbox         IN A    192.168.0.254
> 
> #www    IN CNAME        blazebox
> #ftp    IN CNAME        blazebox
> #mail   IN CNAME        blazebox
> #cvs    IN CNAME        blazebox
> #router IN CNAME        blazebox
> #proxy  IN CNAME        blazebox
> 
> this does not get updated
> 
> Finally dhcpd.leases file:
> 
> lease 192.168.0.43 {
>   starts 0 2003/01/26 22:22:58;
>   ends 1 2003/01/27 00:22:58;
>   tstp 1 2003/01/27 00:22:58;
>   binding state active;
>   next binding state free;
>   hardware ethernet 00:a0:cc:32:81:44;
>   uid "\001\000\240\3142\201D";
>   set ddns-rev-name = "43.0.168.192.in-addr.arpa";
>   set ddns-client-fqdn = "blaze.homeip.net";
>   client-hostname "blaze";
> }
> lease 192.168.0.254 {
>   starts 0 2003/01/26 22:03:20;
>   ends 1 2003/01/27 00:03:20;
>   tstp 1 2003/01/27 00:03:20;
>   binding state active;
>   next binding state free;
>   hardware ethernet 00:08:74:4c:72:7c;
>   uid "\001\000\010tLr|";
>   client-hostname "dellbox";
> }
> 
> The first client runs Win2000 and the second one WinXP.
> 
> In addition i use ipfilter but have udp ports 67,68 and 953 open on the lan.
> 
> I just don't seem to get DDNS fully working no matter what options and
> configurations files i tried from the mailling list.
> 
> I would greatly apprecite any help with properly setting up DDNS updates
> and bind.
> 
> Thank you,
> 
> Paul B.
> 
> 
> 
> 
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