Search Again: Re: binding 2 IPs to a name server From: Men & Mice Support Date: Monday, September 18, 2000 Time: 1:16:23 pm That's the gist of it, yes. It will probably work that way. However, be aware that the whole routing trick thing has the air of magic - if it doesn't work, there's no systematic way to troubleshoot. Test each step. ____________________________________________________________________ Chris Buxton Men & Mice cbuxton@menandmice.com We Make DNS Easy! At 4:09 PM -0400 9/18/00, Karl Schroll wrote: >Thx for the fast response. > >Wow. So your answer is: yes it will work on OS9, with internal ethernet, >for all but something like 1% of users. I won't need Vicomsoft or >otherwise, just to configure the IP Secondary Addresses preference >correctly. No 2nd ethernet card needed. Correct? The 1% doesn't bother >me; it will just be a brief transitional period while root servers get >updated. Thanks. > >-- >Regards, > >Karl Schroll >Digital Frontier >PO Box 1171, 1813 Mountain Road >Stowe, VT 05672 >802-253-8612 >schroll@digitalfrontier.com > >---------- >>From: Men & Mice Support <cbuxton@menandmice.com> >>To: kschroll%inntopia.com@63.164.145.46 >>Subject: Re: binding 2 IPs to a name server >>Date: Mon, Sep 18, 2000, 3:52 PM >> > >> At 3:21 PM -0400 9/18/00, Karl Schroll wrote: >>>We are switching T1 carriers which will require changing info at the root >>>server and readdressing our name server to a new IP number. Is it possible >>>for Open Transport to respond to two IP addresses, so that during the time >>>it takes for the root change to filter out across the net, our name server >>>will respond to the old IP number and the new IP number? If so, do I need >>>to add a second ethernet port to the Mac and if so, can someone suggest one >>>that they know works? Thanks a lot in advance. Please keep it simple, I >>>know just enough to be dangerous. :) >> >> This reminds me of the children's game Fortunately/Unfortunately. >> >> Unfortunately: >> Mac OS computers don't natively support multiple network interfaces. >> Such support can be added with software such as IPNetRouter (from >> Sustainable Softworks) or several of Vicomsoft's gateway/proxy >> products. >> >> Fortunately: >> The Mac OS can, however, be configured to answer on multiple IP >> addresses using its built-in Ethernet port. There should be a sample >> IP Secondary Addresses file in your preferences folder. (Requires Mac >> OS 8.1 or later.) >> >> Unfortunately: >> QuickDNS Pro Server does not directly support multiple IP addresses. >> Support for the extra addresses configured in IP Secondary Addresses >> must be added by server software developers, and we haven't done that >> yet. (New version coming soon...) >> >> Fortunately: >> Mac OS 9's version of Open Transport does some internal routing >> tricks to force QuickDNS Pro Server to listen on multiple IP >> addresses. (Also works on some versions of 8.6.) >> >> Unfortunately: >> The routing tricks that Open Transport uses can cause problems for a >> small percentage (much less than 1%) of your potential visitors. I >> won't bore you with the details; suffice to say that the affected >> potential visitors won't be able to contact your DNS servers if you >> set things up this way. >> >> Fortunately: >> The people thus affected also have had trouble (at various times in >> the past) with www.apple.com, www.microsoft.com, and several others, >> due to the exact same problem. The problem is due to a poor design of >> a proxy or NAT server (at the visitor's end of things) - it makes >> more assumptions than are strictly necessary. There are very few such >> devices still in operation. >> ____________________________________________________________________ >> Chris Buxton Men & Mice >> cbuxton@menandmice.com We Make DNS Easy!

Messages In This Thread: binding 2 IPs to a name server by Karl Schroll on Sep 18, 2000 at 12:21:10 pm Re: binding 2 IPs to a name server by Men & Mice Support on Sep 18, 2000 at 12:44:38 pm Re: binding 2 IPs to a name server by Karl Schroll on Sep 18, 2000 at 1:10:42 pm Re: binding 2 IPs to a name server by Men & Mice Support on Sep 18, 2000 at 1:16:23 pm Re: binding 2 IPs to a name server by Steffan A. Cline on Sep 18, 2000 at 5:37:27 pm Re: binding 2 IPs to a name server by Matthias Gruber on Sep 19, 2000 at 1:06:22 am Re: binding 2 IPs to a name server by Matthias Gruber on Sep 19, 2000 at 1:08:15 am Re: binding 2 IPs to a name server by Matthias Gruber on Sep 19, 2000 at 1:24:40 am Re: binding 2 IPs to a name server by Men & Mice Support on Sep 19, 2000 at 1:38:20 am Re: binding 2 IPs to a name server by Patrick Langer on Sep 19, 2000 at 4:56:10 am Re: binding 2 IPs to a name server by Matthias Gruber on Sep 19, 2000 at 5:38:19 am Re: binding 2 IPs to a name server by Matthias Gruber on Sep 19, 2000 at 6:43:39 am Re: binding 2 IPs to a name server by Steffan A. Cline on Sep 19, 2000 at 7:23:09 am Re: binding 2 IPs to a name server by Matthias Gruber on Sep 19, 2000 at 8:01:23 am Re: binding 2 IPs to a name server by Men & Mice Support on Sep 19, 2000 at 9:41:53 am Re: binding 2 IPs to a name server by Caio James on Dec 10, 2000 at 8:47:14 pm Re: binding 2 IPs to a name server by Men & Mice Support on Dec 10, 2000 at 11:57:59 pm