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#1
July 11th, 2004, 09:00 AM
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Secondary Nameserver (NS)
Hello
I'm running my own dns server using bind 9.2.1 under redhat linux 9.0. My primary nameserer is ns1.example.com, which is the NS I registred with my registrar. My current hosting company offer secondary NS for free to his clients. The problem is that I "think" I have to directly point to his nameservers @ IN NS ns1.example.com. [MY PRIMARY] @ IN NS ns1.65535.net. [SLAVE] @ IN NS ns3.65535.net. [SLAVE] But, I would like to register: - ns2.example.com - ns3.example.com and let it point to the ip's of the backup nameservers: - ns1.65535.net - ns3.65535.net This way my clients can directly point to: - ns1.example.com - ns2.example.com - ns3.example.com instead of pointing to ns1.65535.net and ns3.65535.net. Will this work without any problems and is this a good idea? The only disadvantage I can see is that the ip of the backup nameservers changes over time. Thanks Genius _______ EXAMPLE: Code:
$ttl 14400 @ IN SOA ns1.example.com. serveralerts.example.com. ( 2004062801 ; Serial number yyymmddnn 3600 ; Refresh in 1 hour 120 ; retry in 2 minutes 604800 ; expire in 7 days 3600 ) ; minimum ttl 60 minutes ns1.5t1.com. IN A 81.96.106.2 [MY primary NS] ns2.5t1.com. IN A [IP of ns1.65535.net] ns3.5t1.com. IN A [IP of ns3.65535.net] @ IN NS ns1.example.com. @ IN NS ns2.example.com. [BEFORE IT WAS: ns1.65535.net] @ IN NS ns3.example.com. [BEFORE IT WAS: ns3.65535.net] @ IN A 81.96.106.2 www IN A 81.96.106.2 ftp IN A 81.96.106.2 mail IN A 81.96.106.2 @ IN MX 10 mail example.com. IN MX 50 backupmx.65535.net.
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#2
July 11th, 2004, 10:30 AM
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You pretty much covered it. If you want to setup virtual dns servers (your domain pointing to somebody elses server) then the only disadvantage is IP changes not being automatically followed. If their IPs should change, then your server will do all resolution until you update things. It may also slow down resolution for clients sometimes when you have 2 out of 3 servers down.
__________________
Send me a private message if you would like me to setup your DNS for you for a price of your choosing. This is the preferred method if your DNS needs to be fixed/setup fast and you don't have the time to bounce messages back and forth on a forum. Also, check out these links: Whois Direct | DNS Crawler | NS Trace | Compare Free DNS Hosts
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