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17 messages in net.sourceforge.lists.courier-usersRe: [courier-users] Re: couriertls, r...| From | Sent On | Attachments |
|---|---|---|
| Jon Nelson | Nov 25, 2003 7:52 am | |
| Andrew Newton | Nov 25, 2003 11:42 am | |
| Jon Nelson | Nov 25, 2003 12:09 pm | |
| Jon Nelson | Nov 25, 2003 12:10 pm | |
| Andrew Newton | Nov 25, 2003 12:51 pm | |
| Sam Varshavchik | Nov 25, 2003 5:48 pm | |
| Jon Nelson | Nov 25, 2003 6:15 pm | |
| Roger B.A. Klorese | Nov 25, 2003 6:21 pm | |
| Sam Varshavchik | Nov 25, 2003 6:29 pm | |
| Jon Nelson | Nov 25, 2003 6:55 pm | |
| Jon Nelson | Nov 25, 2003 7:00 pm | |
| Phillip Hutchings | Nov 25, 2003 7:43 pm | |
| Troy Benjegerdes | Nov 25, 2003 10:09 pm | |
| Sam Varshavchik | Nov 26, 2003 4:14 am | |
| Jon Nelson | Nov 26, 2003 7:10 am | |
| Sam Varshavchik | Nov 26, 2003 5:25 pm | |
| Julian Mehnle | Nov 27, 2003 2:51 am |
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| Subject: | Re: [courier-users] Re: couriertls, rfc1035, and /etc/hosts | Actions... |
|---|---|---|
| From: | Jon Nelson (jnel...@jamponi.net) | |
| Date: | Nov 25, 2003 7:00:41 pm | |
| List: | net.sourceforge.lists.courier-users | |
On Tue, 25 Nov 2003, Sam Varshavchik wrote:
Jon Nelson writes:
On Tue, 25 Nov 2003, Sam Varshavchik wrote:
Jon Nelson writes:
queries. The problem here, of course, is that names like 'localhost' and 'localhost.localdomain' do not resolve. What I'm trying to understand, MrSam, is the rationale for doing things this way?
A couple of reasons:
A) IPv6 (not implemented in the legacy resolver routines) B) The resolver routines must do more than just address lookups, namely MX and PTR records.
And, it's not clear to me what's the issue with couriertls not resolving stuff from /etc/hosts. All that means is that the IP address's hostname won't get picked up. Big deal.
Well, 'localhost', for one, won't ever work properly.
And the consequences of that are�
It's not just localhost but anything and everything in /etc/hosts that is not otherwise reflected by DNS.
Secondly, /etc/hosts is there specifically to provide a "static table of host names".
/etc/hosts is ancient legacy left over from the time before DNS. Before DNS came about, everyone used a host file to map IP addresses to hostnames. DNS replaced that procedure several decades ago.
Is that so? DNS *replaced* that procedure? Explain, then, the presence of an /etc/hosts file on *every* 'nix machine I have ever used, from *BSD to every flavor of Linux, ever. "replaced"? Supplemented, yes. Supplanted for non-local hosts, yes. But /etc/hosts has not been replaced. Is there an /etc/hosts file on your machine? Nowhere does it say in the courier docs that courier doesn't rely on the host machine's name resolution capabilities.
I honestly find it ridiculous that courier doesn't consider using /etc/hosts, assuming that all users of courier *must* have access to a nameserver.
-- Democracy is two wolves and a sheep voting on what to have for dinner. Liberty is two wolves attempting to have a sheep for dinner and finding a well-informed, well-armed sheep.
Jon Nelson <jnel...@jamponi.net> C and Python Code Gardener