Updated version This is an updated guide for Ubuntu 12.04.
If you use an older version of Ubuntu, then you might want to check out the old guide, that was written for Ubuntu 8.04.
It's hard to imagine having to manually add and remove DNS records as fast as machines are constantly getting replaced in most IT organization these days.
When DDNS is working properly it's wonderful, but when it fails it can sometimes turn into a major pain to troubleshoot.
Folks, I have a Juniper EX4200 DHCP server with Microsoft DNS server 2008, my problem is that since I installed the juniper DHCP server the reverse lookup zone on the microsoft DNS server stopped getting updated.
I scoured the internet for a solution and found none, but it was mentioned somewhere that I should enable "option 81" on my EX4200 DHCP server. and does anyone know how to configure "option 81" and what is needed to be configured on the Microsoft DNS server side ?
The default profile suggests that these files should be put in /var/lib/bind.
If you don’t have that I suggest that you first read my two other posts on how to install them: Setting up a DNS for the local network on the Ubuntu 12.04 (Precise Pangolin) server Setting up a DHCP server on Ubuntu 12.04 (Precise Pangolin) server Step by step instructions Apparently the Ubuntu server is installed with an App Armor profile that prevents bind to write to the /etc/bind directory.Probing the DNS servers via dig returns no records for the hostname.Windows DHCP clients in the domain which have reservations properly update DNS. Are your DHCP servers set to update DNS even with an unauthenticated requests?This may work best for those who upgraded from a previous version of OS X to Mountain Lion but if you’re having the wifi drop issue go ahead and do it anyway because it is consistently successful with addressing wireless issues: The network location and DHCP renewal tip resolved similar wifi problems in Lion, and it seems to work in Mountain Lion too for many users.This is a bit geeky but bare with us: MTU stands for Maximum Transmission Unit and controls the largest packet size allowed for transmission over the network.