Date: Tue, 25 Mar 2003 13:55:24 -0600 From: David J Duchscher <daved@nostrum.com> To: "Ken Menzel" <kenm@icarz.com> Cc: "Marius Strom" <marius@marius.org>, <freebsd-stable@FreeBSD.ORG> Subject: Re: Resolver Issues (non valid hostname characters) Message-ID: <B7B04CE6-5EFB-11D7-8571-0003930B3DA4@nostrum.com> In-Reply-To: <086701c2f2ed$1f7ecd90$e1db7bd1@kenxp>
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Try pinging this 'dont_work.net.tamu.edu'. Then try doing a
nslookup or dig on the name. You will find that in
/usr/src/lib/libc/net/res_comp.c at line 133 in the function
res_hnok() the code that restricts DNS queries to RFC 952.
DaveD
On Tuesday, March 25, 2003, at 10:39 AM, Ken Menzel wrote:
> hi,
> I am not sure where you think freebsd needs support for underscores in
> the resolver.
> freebsd2# hostname -s free_bsd2
> freebsd2# hostname
> free_bsd2.icarz.com
> freebsd2#vi /etc/hosts (edit host file here adding new name)
> freebsd2# ping free_bsd2
> PING free_bsd2.icarz.com (207.99.22.11): 56 data bytes
> 64 bytes from 207.99.22.11: icmp_seq=0 ttl=64 time=0.128 ms
> freebsd2# su
> free_bsd2#
>
> If you are having trouble with bind try 'check-names ignore;'
> zone "_msdcs.icarz.com" {
> type master;
> file "_msdcs.icarz.com.db";
> allow-update { dmcs; 127.0.0.1; };
> check-names ignore;
> };
>
> If that is not what you mean please be more specific.
> Best of luck, hope this helps.
> Ken
>
> ----- Original Message -----
> From: "Marius Strom" <marius@marius.org>
> To: "David J Duchscher" <daved@nostrum.com>
> Cc: <freebsd-stable@FreeBSD.ORG>
> Sent: Tuesday, March 25, 2003 10:59 AM
> Subject: Re: Resolver Issues (non valid hostname characters)
>
>
>> FWIW, I've been having trouble with domains that in particular have
> '_'
>> in the hostname.
>>
>> I know it violates RFC952, but lots of people are using them now,
> for
>> good or bad. How about a compile-time flag to allow a "looser"
>> adherence to the RFC? (Yeah, I know this would likely be gross, and
> thus
>> I'll defer to people who are more familiar with FreeBSD internals
> here)
>>
>> On Mon, 24 Mar 2003, Dave Duchscher wrote:
>>> It seems that the use of invalid characters in hostnames is
> cropping
>>> up more and more. Besides complaining to the offending site which
>>> often doesn't work, I was wondering if these restrictions on
> FreeBSD
>>> should be re-examined. At this time, it seems that many OSes are
> no
>>> longer enforcing this requirement or never have. In my case, I am
>>> running into a hostnames with an underscore character in the name.
> It
>>> seems that Linux, MacOS X, Solaris and Windows all allow this
> hostname
>>> to resolve but FreeBSD, as well as the other *BSD, reject it.
> Should
>>> FreeBSD follow suit?
>>>
>>> DaveD
>>>
>>>
>>> To Unsubscribe: send mail to majordomo@FreeBSD.org
>>> with "unsubscribe freebsd-stable" in the body of the message
>>>
>>
>> --
>>
> /------------------------------------------------->
>> Marius Strom | Always carry a short length of fibre-optic
> cable.
>> Professional Geek | If you get lost, then you can drop it on
> the
>> System/Network Admin | ground, wait 10 minutes, and ask the
> backhoe
>> http://www.marius.org/ | operator how to get back to civilization.
>> \-------------| Alan Frame
> |---------------------->
>>
>> To Unsubscribe: send mail to majordomo@FreeBSD.org
>> with "unsubscribe freebsd-stable" in the body of the message
>>
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