On Tue, Jan 13, 2004 at 01:16:23PM +0100, Ruben de Groot wrote:
On Mon, Jan 12, 2004 at 11:09:38PM -0600, John typed:
I see that some Microsoft systems send out an update to DNS with the system name. I configured my DNS server to accept these updates, but now that I'm running FreeBSD on a laptop - how do I do that from FreeBSD? I've looked at the dhclient man pages and the named man pages and the pages that they refer to and I didn't pick up any hints there.
Can anyone give me a clue? (Yeah - I'm clueless...)
I believe this is done by the nsupdate(8) program.
You can also have your DHCP server do the updates - which makes sense, as it's the thing handing out the addresses to your client machines. I have this working reasonably well with isc-dhcpd, for Windows and FreeBSD clients.
You want to read the 'DYNAMIC DNS UPDATES' section of the dhcpd.conf(5) manpage, and whatever docs your DNS server has on this topic. There are plenty of examples of working configs for isc-dhcpd and bind to be found on the web.
HTH,
Scott
I just set this up today... There's actually nothing to be done on the client side. The isc-dhcp server takes care of informing BIND that it has handed out a new Address.
You have to add the following line to your dhcpd.conf: ddns-update-style ad-hoc;
and make sure BIND is willing to take it: (from /etc/named/named.conf:
zone "lan" {
type master;
allow-update { 192.168.1.10; }; <<--
file "s/lan";
};(192.168.1.10 is my DHCP server, which is actually the same machine which runs BIND)
after a little while, 'host -l lan' says: OREN1.lan has address 192.168.1.54 ROIE.lan has address 192.168.1.57 Sun.lan has address 192.168.1.56 zhacy.lan has address 192.168.1.58 .... And so forth...
These are all dynamically-assigned addresses, I only have ladon/mail/router.lan defined in the zone file.
Gilad.
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