BIND upgrade - Dev Shed

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February 29th, 2004, 01:20 PM

kotolenko

Registered User

Join Date: Jan 2004

Location: Maribor; Slovenia

Posts: 21

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BIND upgrade

Hi,
i'am running FreeBSD 4.5 and BIND 8.2.4 and since i have moved my web server from machine with public IP to internal machine and i route all 80 traffic to it, i can't access my web pages by typing url in browser on internal network. The problem is described in another article (http://forums.devshed.com/t125850/s.html).
So i have heard that BIND 9.x.x has this new function called views, which can handle request different depending from where they come. I tought this would solve my problem.
My question is if someone has any expirience upgradeing BIND from version 8.x.x to 9.x.x, do the configuraton files stay same or do i have to setup all from start, what shuld i backup before upgrade and if posible what is expected down time of server.

thanx

February 29th, 2004, 03:11 PM

SilentRage

DNS/BIND Guru

Join Date: Jun 2003

Location: OH, USA

Posts: 4,193

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Yes, the split dns scorpion described is implementable through BIND views.

"do the configuraton files stay same or do i have to setup all from start"

It us unlikely that you have to change anything. Some directives are no longer supported and does nothing, there's some new directives. But for typical configurations with no unusual configuration elements, no changes will be necessary.

"what shuld i backup before upgrade"

backup all zone files and the main configuration file and any other conf files included into the main configuration file. There's no particular reason why you should, it's just good habit.

"if posible what is expected down time of server"

depends on how fast you compile and setup the new server after removing the old. I can't tell ya how long. I recommend switching hosting to a backup server before taking down the old. be sure that the backup server has updated NS records that point to the backup server and not the old. Then you can take your time with setting up and testing before you switch to the new server. If you don't have a spare server, you can switch to a free host temporarily. Here's a list.

http://www.dollardns.net/compare.html

This is my BIND 9.2.3 server configuration. It uses views:
http://www.dollardns.net/bind/advanced/named.conf

It uses "match-destinations" though. You could use that or match the source.

__________________
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

Last edited by SilentRage : May 6th, 2004 at 09:43 PM.

February 29th, 2004, 03:16 PM