Search Again: Re: dns problem resolution? From: Men & Mice Support Date: Thursday, November 4, 2004 Time: 4:06:33 pm Sure. I'm going to assume you're currently using BIND 9.2.x. - Download the source code for BIND 9.3.0 from the ISC.org website. Decompress the archive. - Open a shell (e.g. a Terminal window) and cd to the directory. For example, if you download with normal web browser settings on Mac OS X and decompress using Stuffit Expander, you can most likely use this command: cd ~/Desktop/bind-9.3.0 - Execute the following to compile and install: ./configure make sudo -s mv /usr/sbin/named /usr/sbin/named-9.2 cp bin/named/named /usr/sbin/named - Continue with the following to test (involves a little downtime for your server): killall named && /usr/sbin/named -4 -g This opens the new copy in a debugging mode. See if there are any error messages. When you're satisfied, type control-c to stop it, then execute this to start it normally: /usr/sbin/named -4 If you see any problems during the debug mode session, fix them. If you can't, revert to the old version: /usr/sbin/named-9.2 - Exit root mode: exit - If the new version works for you, modify your boot script (on Mac OS X, that's /Library/StartupItems/QuickDNS/named; on FreeBSD, it's your normal operating system boot script for named) to include the -4 parameter for launching named. Chris Buxton Men & Mice - Making DNS Easy Customer Service and Sales Engineer At 6:36 PM -0500 11/4/04, John May wrote: >Chris - > >Can you repost these instructions? > > - John > >>Explicit instructions for compiling version 9.3.0 are included in >>the other message thread. If you need more help than that, feel >>free to contact me off-list. >> >>Chris Buxton >>Men & Mice - Making DNS Easy >>Customer Service and Sales Engineer >> >>At 1:58 PM -0800 11/4/04, Jody McAlister wrote: >>>I have version 9.2.3. I see other threads on how to upgrade so >>>I'll read those. But I'm a unix newbie so compiling and such is >>>out of my league. >>>On Nov 4, 2004, at 11:42 AM, Men & Mice Support wrote: >>> >>>>What version of named do you have? Apparently, this option is >>>>only available with version 9.3.0 and later. >>>> >>>>You can find out your version with this command: >>>> >>>>named -v >>>> >>>>Chris Buxton >>>>Men & Mice - Making DNS Easy >>>>Customer Service and Sales Engineer >>>> >>>>At 10:35 AM -0800 11/4/04, Jody McAlister wrote: >>>>>I've tried this on two seperate machines , (10.3.2 & 10.3.5) and >>>>>QDNS 4.6.1. It kills bind everytime I put the -4 in the Params >>>>>setting as instructed below. As soon as I remove it, all starts >>>>>up just fine. >>>>> >>>>> >>>>>On Nov 1, 2004, at 1:51 PM, Men & Mice Support wrote: >>>>> >>>>>>We're working along these same lines, but initial tests have >>>>>>not been uniformly positive. >>>>>> >>>>>>If you want to try this as described, a few changes will be >>>>>>required to work within the framework provided by QuickDNS. I'm >>>>>>going to assume you're using QuickDNS 4.6.1, since if you're >>>>>>using an earlier version either you need to update (for free if >>>>>>you're using version 4.5 or later), or you're probably not >>>>>>having this problem (since you're using BIND 8). >>>>>> >>>>>>Instead of modifying /System/Library/StartupItems/BIND/BIND, >>>>>>you'll need to modify /Library/StartupItems/QuickDNS/named. >>>>>>Look for a line like this, near the top: >>>>>> >>>>>>PARAMS="" >>>>>> >>>>>>Add -4 inside the quotes, like this: >>>>>> >>>>>>PARAMS="-4" >>>>>> >>>>>>This takes care of settings for both starting and restarting. >>>>>>To activate it, simply execute this (with root privileges): >>>>>> >>>>>>/Library/StartupItems/QuickDNS/named restart >>>>>> >>>>>>Chris Buxton >>>>>>Men & Mice - Making DNS Easy >>>>>>Customer Service and Sales Engineer >>>>>> >>>>>>At 2:18 PM -0800 11/1/04, Jody McAlister wrote: >>>>>>>The mac os x server list just posted this message regarding >>>>>>>dns lookups. they've been basically having the same thread >>>>>>>that we had last week. >>>>>>> >>>>>>>I haven't tried it yet. I'm posting so maybe men and mice can >>>>>>>confirm before I start playing with my server. >>>>>>> >>>>>>>********************************************************************************************************************* >>>>>>>(Copied message begins here...) >>>>>>> >>>>>>>A more complex, but more reliable fix MacFixIt reader Ken has >>>>>>>discovered a clever workaround that involves modifying the >>>>>>>operation of Mac OS X's "named" daemon -- the DNS server that >>>>>>>is part of the BIND set of UNIX DNS utilities. >>>>>>> >>>>>>> The theory behind why this fix works is as follows: root >>>>>>>domain servers appear to have recently been given IPv6 >>>>>>>capability, and are now returning AAAA records in response to >>>>>>>name lookups. >>>>>>> >>>>>>> Ken writes "The simple upshot is that for whatever reason, >>>>>>>the first time named tries to go do a DNS query, it seems to >>>>>>>decide to try sending to an IPV6 server address, which is >>>>>>>pretty much guaranteed to fail for most users. Eventually this >>>>>>>times out and it retries, but by that time Safari has usually >>>>>>>given up on resolving the address and you get an error. The >>>>>>>second time you try it, the correct address has already been >>>>>>>cached by the system and everything works. >>>>>>>"I found that a very simple fix (if you don't mind editing OS >>>>>>>config files) was to modify the >>>>>>>/System/Library/StartupItems/BIND/BIND file to add the '-4' >>>>>>>option to named, which forces it to only use IPV4. For >>>>>>>example, the first part of the file normally looks like this: >>>>>>> >>>>>>> StartService () >>>>>>> { >>>>>>> if [ "${DNSSERVER:=-NO-}" = "-YES-" ]; then >>>>>>> ConsoleMessage "Starting named" >>>>>>> named >>>>>>> fi >>>>>>> } >>>>>>> >>>>>>> >>>>>>>I changed the above to: >>>>>>> >>>>>>>StartService () >>>>>>> { >>>>>>> if [ "${DNSSERVER:=-NO-}" = "-YES-" ]; then >>>>>>> ConsoleMessage "Starting named" >>>>>>> named -4 >>>>>>> fi >>>>>>> } >>>>>>> >>>>>>> >>>>>>>"You should probably do the same thing for the RestartService >>>>>>>section in the file. You'll either need to restart named by >>>>>>>hand with the new option, or simply reboot your system to have >>>>>>>the above take effect (probably the safest thing to do). I >>>>>>>haven't yet tried digging into the BIND code deeply enough to >>>>>>>determine why it seems to favor IPV6 address over and over >>>>>>>again even though it never gets a valid response. It appears >>>>>>>as though there is some code within BIND to sort the servers >>>>>>>on response time, but IPV6 servers seem to always wind up at >>>>>>>the front of the list." > > >-- > >------------------------------------------------------------------- >John May : President <http://www.pointinspace.com> >Point In Space Internet Solutions jmay@pointinspace.com > > Professional Lasso / PHP / MySQL / FileMaker Pro Hosting

Messages In This Thread: dns problem resolution? by Jody McAlister on Nov 1, 2004 at 2:20:49 pm Re: dns problem resolution? by Men & Mice Support on Nov 1, 2004 at 2:52:12 pm Re: dns problem resolution? by Jody McAlister on Nov 1, 2004 at 3:37:30 pm Re: dns problem resolution? by Scott Haneda on Nov 1, 2004 at 3:45:23 pm Re: dns problem resolution? by Jody McAlister on Nov 4, 2004 at 10:37:32 am Re: dns problem resolution? by Men & Mice Support on Nov 4, 2004 at 12:09:36 pm Re: dns problem resolution? by Jody McAlister on Nov 4, 2004 at 2:04:16 pm Re: dns problem resolution? by Men & Mice Support on Nov 4, 2004 at 2:33:26 pm Re: dns problem resolution? by John May on Nov 4, 2004 at 3:46:25 pm Re: dns problem resolution? by Men & Mice Support on Nov 4, 2004 at 4:06:33 pm Re: dns problem resolution? by Thomas Carpentier on Nov 5, 2004 at 1:50:43 am Re: dns problem resolution? by Men & Mice Support on Nov 5, 2004 at 11:22:34 am Re: dns problem resolution? by Jim Cobb on Nov 5, 2004 at 11:55:11 am Re: dns problem resolution? by John May on Nov 5, 2004 at 12:03:37 pm Re: dns problem resolution? by Men & Mice Support on Nov 5, 2004 at 12:33:34 pm Re: dns problem resolution? by John May on Nov 5, 2004 at 1:11:41 pm Re: dns problem resolution? by Men & Mice Support on Nov 5, 2004 at 2:08:02 pm