1/12/12 CTWUG DNS - CTWUG Wiki CTWUG DNS From CTWUG Wiki Contents 1 What is DNS 2 CTWUG DNS Servers 3 How CTWUG DNS Works 4 Setup our own DNS What is DNS DNS (Domain Name S stem WIKIPedia (http://en.wikipedia.org/wiki/Domain_Name_S stem) ) is used instead of IP's. Most of the time if there is onl a couple of IP's its easier to use IP's instead of DNS, but the bigger the network, the more IP's ou have to remember, and then its easier to remember DNS names ie: http://wind.ctwug. a.net or http://wiki.ctwug. a.net Another benefit using DNS is that ou can have multiple virtual servers on the same IP. wind.ctwug. a.net and wiki.ctwug. a.net both runs on macg ver.ctwug. a.net CTWUG DNS Ser ers The CTWUG DNS Server is: 172.18.1.1 This IP actuall runs on 4 computers at the moment. 1. macg ver.ctwug. a.net (Jupi2) (nOs) 2. srv.tf re.ctwug. a.net (Phebos) (TF re) 3. server.wildpikachu.ctwug. a.net (Mercur ) (WildPikachu) 4. data.edge.ctwug. a.net (Rage) (CuttingEdge) cthulhu.scar.ctwug. a.net (ScarFreewill) must still get the 172.18.1.1 IP This IP (172.18.1.1) gets used for NTP as well. Ho CTWUG DNS Works 196.211.31.107 (jaja) is the Primar DNS server and has a static public IP. This is reqruied to run a DNS Server. There are 2 secondar servers helping dns.ctwug. a.net with internet side queries wiki.ctwug. a.net/CTWUG_DNS 1/2 1/12/12 CTWUG DNS - CTWUG Wiki 1. dns2.nettica.com 2. dns4.nettica.com The CTWUG DNS Servers gets their DNS Zone information directl from dns.ctwug. a.net. When someone adds new IP addresses on WIND (http://wind.ctwug. a.net) , dns.ctwug. a.net gets notified. dns.ctwug. a.net then updates its own one file and notifies 3 servers using static ip addresses 1. macg ver.ctwug. a.net (OpenVPN Tunnel to dns.ctwug. a.net) 2. dns2.nettica.com 3. dns4.nettica.com When these servers receive the notification, the will do an incremental transfer from dns.ctwug. a.net. After macg ver.ctwug. a.net receives the one file, it will notif the CTWUG DNS Servers Setup our own DNS Refer to DNS Setup. It is required for each user to register his or her used IP's on their Wind node. Retrieved from "http://wiki.ctwug. a.net/CTWUG_DNS" This page was last modified on 18 September 2011, at 16:25. wiki.ctwug. a.net/CTWUG_DNS 2/2