On Thu, Feb 17, 2011 at 01:38:58PM +1100, Kyle wrote: > I've tried lots since this thread started to the extent I installed a > whole fresh machine on 192 subnet only, skimmed dhcpd and named confs > down to a simple, by the book, 1 domain setup and I still get the same > problem even on the fresh host. And this is a CentOS 5.5 (final) > install. I.e. the latest they publish.
Are you having problems updating the A record or the PTR record, or both? Can you manually update either or both with nsupdate run on the DNS server. Can you do the same with nsupdate on the DHCP server? Are the clocks on the DHCP server and the DNS server synchronised? I don't remember why this mattered (it's been years since I set this up myself), but I do remember having updates fail when the clocks were not synchronised. Can you send me your DNS and DHCP config files? > If I'm "reserving" an IP for a specific host in dhcpd.conf, am I > supposed to then be already placing a PTR record in the reverse zone > file for the reservation? By reserving, do you mean that you've configured your DHCP server to allocate fixed addresses based on the host's MAC address? I wouldn't have thought it would matter, that the DHCP server would update both the A and PTR records anyway, as long as you've configured it to update both zones in dhcpd.conf. > If so, doesn't that simply defeat the whole purpose of dhcp? No. The purpose of DHCP is to allow hosts to get an IP address and other information without having to manually configure each host. The DDNS update is just a bonus :-) John -- >What's the use of having a cupboard full of dingy little machines, >none of which can run continuously for more than five minutes without >needing 15 minutes of cooldown? Our NT admins have an answer to that. -- Joe Moore -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
