Difference between revisions of "CTWUG DNS"
(New page: =What is DNS= DNS (Domain Name System [http://en.wikipedia.org/wiki/Domain_Name_System WIKIPedia]) is used instead of IP's. Most of the time if there is only a couple of IP's its easier t...) |
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When these servers receive the notification, they will do an incremental transfer from johannesleroux.co.za | When these servers receive the notification, they will do an incremental transfer from johannesleroux.co.za | ||
− | After macgyver.ctwug.za.net receives the zone file, it will notify the | + | After macgyver.ctwug.za.net receives the zone file, it will notify the CTWUG DNS Servers |
Revision as of 14:01, 18 November 2008
What is DNS
DNS (Domain Name System WIKIPedia) is used instead of IP's. Most of the time if there is only a couple of IP's its easier to use IP's instead of DNS, but the bigger the network, the more IP's you have to remember, and then its easier to remember DNS names ie: http://wind.ctwug.za.net or http://wiki.ctwug.za.net
Another benefit using DNS is that you can have multiple virtual servers on the same IP. wind.ctwug.za.net and wiki.ctwug.za.net both runs on macgyver.ctwug.za.net
CTWUG DNS Servers
The CTWUG DNS Server is: 172.18.1.1
This IP actually runs on 2 computers at the moment.
cthulhu.scar.ctwug.za.net (ScarFreewill) must still get the 172.18.1.1 IP
This IP (172.18.1.1) gets used for NTP as well.
How CTWUG DNS Works
johannesleroux.co.za (Dade) is the Primary DNS server and has a static public IP. This is reqruied to run a DNS Server.
There are 2 secondary servers helping johannesleroux.co.za with internet side queries
- 1. dns2.nettica.com
- 2. dns4.nettica.com
The CTWUG DNS Servers gets their DNS Zone information directly from johannesleroux.co.za.
When someone adds new IP addresses on WIND, johannesleroux.co.za gets notified. johannesleroux.co.za then updates its own zone file and notifies 3 servers using static ip addresses
- 1. macgyver.ctwug.za.net (OpenVPN Tunnel to johannesleroux.co.za
- 2. dns2.nettica.com
- 3. dns4.nettica.com
When these servers receive the notification, they will do an incremental transfer from johannesleroux.co.za
After macgyver.ctwug.za.net receives the zone file, it will notify the CTWUG DNS Servers