Comments on: Bind IP to DNS service http://www.bloggylife.com/2009/05/16/bind-ip-to-dns-service/ my day to day thoughts! Mon, 09 Jan 2012 20:28:02 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Bloggylife http://www.bloggylife.com/2009/05/16/bind-ip-to-dns-service/comment-page-1/#comment-3548 Bloggylife Thu, 21 May 2009 11:05:00 +0000 http://www.bloggylife.com/?p=2054#comment-3548 I need a chat with the guru guy ;D My point exactly, the order solved the issue. So that'll apply also on having two NICs. There is an option on the DNS to listen to an IP for DNS queries, but that didn't make the server understand, for replication/queries requests use the same IP you are listening to, it just went on and used the 1st IP configured. Of course for receiving DNS queries, if you have IP1 and IP2 config on the NIC card, both will work, but if you configured DNS to listen to one IP, than you should use that ... I'll see if I can get snapshots of the configuration, that'll be more clear. And I'll try the 2 NIC scenario, and post that too. Secondary DNS server will be down on Sunday ;P for technical purposes! I need a chat with the guru guy ;D

My point exactly, the order solved the issue. So that’ll apply also on having two NICs.

There is an option on the DNS to listen to an IP for DNS queries, but that didn’t make the server understand, for replication/queries requests use the same IP you are listening to, it just went on and used the 1st IP configured.

Of course for receiving DNS queries, if you have IP1 and IP2 config on the NIC card, both will work, but if you configured DNS to listen to one IP, than you should use that …

I’ll see if I can get snapshots of the configuration, that’ll be more clear. And I’ll try the 2 NIC scenario, and post that too.

Secondary DNS server will be down on Sunday ;P for technical purposes!

]]> By: MBH http://www.bloggylife.com/2009/05/16/bind-ip-to-dns-service/comment-page-1/#comment-3547 MBH Thu, 21 May 2009 06:45:47 +0000 http://www.bloggylife.com/?p=2054#comment-3547 According to our Windows guru, DNS queries and replication goes on the same interface that queries came from, hence using different NICs. If you have 2 IPs in the NIC, it becomes a matter of which IP was setup first. According to our Windows guru, DNS queries and replication goes on the same interface that queries came from, hence using different NICs.

If you have 2 IPs in the NIC, it becomes a matter of which IP was setup first.

]]> By: Bloggylife http://www.bloggylife.com/2009/05/16/bind-ip-to-dns-service/comment-page-1/#comment-3545 Bloggylife Wed, 20 May 2009 19:39:08 +0000 http://www.bloggylife.com/?p=2054#comment-3545 I'm not sure how would having 2 nics be any different than configuring a single one with 2 IPs in this case. Even if I have two NICs one with each IP, there isn't an option to say DNS queries uses this IP, where as in FTP there is ... Even If I have two NICs, based on the behaviour I've seen, DNS will pick up the IP of the first NIC card it sees, so if it happens to be the FTP IP, then I have to exchange the IPs on both NIC cards ... In my scenario, since I am running two services on the same server, if I can configure IIS services to IPs then it doesn't matter the order of configured IPs but it does to DNS service ... The primary DNS server didn't face this problem, because DNS is the only running service on that server - and don't say we're wasting resources, we're heading to virtualization ;P - I should check out windows 2008 .. see if it's different there .. though my 1st implementation impression (web server configuration) .. it's too much work! I’m not sure how would having 2 nics be any different than configuring a single one with 2 IPs in this case.

Even if I have two NICs one with each IP, there isn’t an option to say DNS queries uses this IP, where as in FTP there is …

Even If I have two NICs, based on the behaviour I’ve seen, DNS will pick up the IP of the first NIC card it sees, so if it happens to be the FTP IP, then I have to exchange the IPs on both NIC cards …

In my scenario, since I am running two services on the same server, if I can configure IIS services to IPs then it doesn’t matter the order of configured IPs but it does to DNS service … The primary DNS server didn’t face this problem, because DNS is the only running service on that server – and don’t say we’re wasting resources, we’re heading to virtualization ;P –

I should check out windows 2008 .. see if it’s different there .. though my 1st implementation impression (web server configuration) .. it’s too much work!

]]> By: MBH http://www.bloggylife.com/2009/05/16/bind-ip-to-dns-service/comment-page-1/#comment-3543 MBH Wed, 20 May 2009 06:43:49 +0000 http://www.bloggylife.com/?p=2054#comment-3543 That's a workaround not a solution :p I found Microzift's networking stack to be pure crap as it acts funny in very serious times... Bridging, wireless network scanning/connectivity, IP priorities, DNS priorities, default gateway priorities, ...etc. MS might introduce a "new feature" in the future that would break your workaround, or even worse, it might come in as an update or a patch. Your best bet is to slap in another NIC and go with the safe option. Good luck! That’s a workaround not a solution :p

I found Microzift’s networking stack to be pure crap as it acts funny in very serious times…

Bridging, wireless network scanning/connectivity, IP priorities, DNS priorities, default gateway priorities, …etc.

MS might introduce a “new feature” in the future that would break your workaround, or even worse, it might come in as an update or a patch.

Your best bet is to slap in another NIC and go with the safe option.

Good luck!

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