From nobody@FreeBSD.ORG  Mon Nov 20 09:28:54 2000
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Date: Mon, 20 Nov 2000 09:28:53 -0800 (PST)
From: m.pizzi@net-one.it
Sender: nobody@FreeBSD.ORG
To: freebsd-gnats-submit@FreeBSD.org
Subject: Strange behaviour in domain name resolution!!
X-Send-Pr-Version: www-1.0

>Number:         22980
>Category:       misc
>Synopsis:       Strange behaviour in domain name resolution!!
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Nov 20 09:30:00 PST 2000
>Closed-Date:    Thu Nov 30 12:26:50 PST 2000
>Last-Modified:  Thu Nov 30 12:27:39 PST 2000
>Originator:     Marco Pizzi
>Release:        FreeBSD 4.2-RELEASE
>Organization:
Net1, srl
>Environment:
FreeBSD parigi.net-one.it 4.2-RELEASE FreeBSD 4.2-RELEASE #0: Mon Nov 20 17:57:29 CET 2000     root@parigi.net-one.it:/usr/obj/usr/src/sys/PARIGI  i386
>Description:
Hello,

There is a strange behaviour related to domain name resolution.
See this:
--
parigi# nslookup nw_milano.bgsdarcy.it
Server:  ginevra.net-one.it
Address:  212.177.116.30
 
Non-authoritative answer:
Name:    nw_milano.bgsdarcy.it
Address:  193.70.120.194
--
Now, look at this:
---
parigi# telnet nw_milano.bgsdarcy.it 25
nw_milano.bgsdarcy.it: Non-recoverable failure in name resolution
---

What????
This is very severe, because this machine is one of our smtp servers,
and many mails didn't started!
Please, help us.
>How-To-Repeat:
#nslookup nw_milano.bgsdarcy.it
#telnet nw_milano.bgsdarcy.it 25
>Fix:


>Release-Note:
>Audit-Trail:

From: Andre Albsmeier <andre.albsmeier@mchp.siemens.de>
To: m.pizzi@net-one.it
Cc: freebsd-gnats-submit@FreeBSD.ORG
Subject: Re: misc/22980: Strange behaviour in domain name resolution!!
Date: Mon, 20 Nov 2000 22:00:01 +0100

 On Mon, 20-Nov-2000 at 09:28:53 -0800, m.pizzi@net-one.it wrote:
 > 
 > --
 > parigi# nslookup nw_milano.bgsdarcy.it
 > Server:  ginevra.net-one.it
 > Address:  212.177.116.30
 >  
 > Non-authoritative answer:
 > Name:    nw_milano.bgsdarcy.it
 > Address:  193.70.120.194
 > --
 > Now, look at this:
 > ---
 > parigi# telnet nw_milano.bgsdarcy.it 25
 > nw_milano.bgsdarcy.it: Non-recoverable failure in name resolution
 
 Maybe removing the illegal underscore might help. You could use
 a '-' instead of the '_'.
 
 	-Andre
 

From: Marco Pizzi <marcolin@net-one.it>
To: Andre Albsmeier <andre.albsmeier@mchp.siemens.de>,
	m.pizzi@net-one.it
Cc: freebsd-gnats-submit@FreeBSD.ORG
Subject: Re: misc/22980: Strange behaviour in domain name resolution!!
Date: Mon, 20 Nov 2000 23:07:44 +0100

 At 22.00 20/11/00 +0100, Andre Albsmeier wrote:
 >On Mon, 20-Nov-2000 at 09:28:53 -0800, m.pizzi@net-one.it wrote:
 > >
 > > --
 > > parigi# nslookup nw_milano.bgsdarcy.it
 > > Server:  ginevra.net-one.it
 > > Address:  212.177.116.30
 > >
 > > Non-authoritative answer:
 > > Name:    nw_milano.bgsdarcy.it
 > > Address:  193.70.120.194
 > > --
 > > Now, look at this:
 > > ---
 > > parigi# telnet nw_milano.bgsdarcy.it 25
 > > nw_milano.bgsdarcy.it: Non-recoverable failure in name resolution
 >
 >Maybe removing the illegal underscore might help. You could use
 >a '-' instead of the '_'.
 
 But THAT is the real name of the server.
 That is not my server.
 Also, the name resolution doesn't fail on a Linux or a Solaris machine!
 
 Thanks,
 
 Marco.
 
 

From: Andre Albsmeier <andre.albsmeier@mchp.siemens.de>
To: Marco Pizzi <marcolin@net-one.it>
Cc: Andre Albsmeier <andre.albsmeier@mchp.siemens.de>,
	m.pizzi@net-one.it, freebsd-gnats-submit@FreeBSD.ORG
Subject: Re: misc/22980: Strange behaviour in domain name resolution!!
Date: Tue, 21 Nov 2000 07:44:47 +0100

 On Mon, 20-Nov-2000 at 23:07:44 +0100, Marco Pizzi wrote:
 > At 22.00 20/11/00 +0100, Andre Albsmeier wrote:
 > >On Mon, 20-Nov-2000 at 09:28:53 -0800, m.pizzi@net-one.it wrote:
 > > >
 > > > --
 > > > parigi# nslookup nw_milano.bgsdarcy.it
 > > > Server:  ginevra.net-one.it
 > > > Address:  212.177.116.30
 > > >
 > > > Non-authoritative answer:
 > > > Name:    nw_milano.bgsdarcy.it
 > > > Address:  193.70.120.194
 > > > --
 > > > Now, look at this:
 > > > ---
 > > > parigi# telnet nw_milano.bgsdarcy.it 25
 > > > nw_milano.bgsdarcy.it: Non-recoverable failure in name resolution
 > >
 > >Maybe removing the illegal underscore might help. You could use
 > >a '-' instead of the '_'.
 > 
 > But THAT is the real name of the server.
 
 Well, I didn't doubt that it is the real name. But the
 name is illegal since it contains an underscore. I don't
 know if this causes the problem.
 
 > That is not my server.
 > Also, the name resolution doesn't fail on a Linux or a Solaris machine!
 
 That doesn't mean they are correct.
 
 > 
 > Thanks,
 > 
 > Marco.
 
 	-Andre
 
State-Changed-From-To: open->closed 
State-Changed-By: alfred 
State-Changed-When: Thu Nov 30 12:26:50 PST 2000 
State-Changed-Why:  
We aren't responsible for resolving non RFC compliant DNS records, 
user should fix his DNS naming scheme 

http://www.freebsd.org/cgi/query-pr.cgi?pr=22980 
>Unformatted:
