Dealing with unexpected RCODE (SERVFAIL)

2010-03-16 Thread Ruben Laban
Hello list,

In my logs I see numerous line like these:

Mar 16 04:59:13 mx02 named[4606]: unexpected RCODE (SERVFAIL) 
resolving 'hotmeil.com/MX/IN': 10.2.1.3#53
Mar 16 04:59:14 mx02 named[4606]: unexpected RCODE (SERVFAIL) 
resolving 'hotmeil.com/MX/IN': 10.0.1.3#53
Mar 16 04:59:15 mx02 named[4606]: unexpected RCODE (SERVFAIL) 
resolving 'hotmeil.com/MX/IN': 10.1.1.3#53

The hostname that's being tried to resolve obviously has a typo in it, users 
tend to make such mistakes a lot.

In our case mx02 runs it own caching nameserver, which uses our internal 
caching nameservers (10,[012].1.3) as forwarders.

Is there something I can change in the configuration of either (or both) mx02 
or 10.[012].1.3 to prevent the unexpected?

Is it safe to ignore these error completely (either in our filters or in 
bind's configuration)? I'm a bit hesitant to do so, since I got the feeling 
that I might miss out on actual problems occuring (other than users not being 
able to spell).

I google'd around several times, but could never find any useful information 
on this subject.
-- 
Regards,

Ruben Laban
Senior Systems and Network Administrator
ISM eCompany
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Re: Double messages in comp.protocols.dns.bind

2009-08-24 Thread Ruben Laban
On Monday 24 August 2009 at 23:32 (CET), Andy Shellam wrote:
  It's gotten worse.  Today I'm seeing quadruple messages in the I have a
  question concerning the spf thread.  Two plain text messages, and two
  that are just a big block of base64 encoding.

 Strangely enough, just for that thread, we got 2 identical messages on
 bind-us...@lists.isc.org.

Which was addressed to the list twice:

To: 
Bind users bind-users@lists.isc.org, Bind users bind-us...@isc.org

-- 
Regards,

Ruben Laban
Systems and Network Administrator
ISM eCompany
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Re: How to Create a MX record for a subdomain.

2009-04-01 Thread Ruben Laban
On Wednesday 01 April 2009 at 11:10 (CET), tzqian wrote:
 I would like to add a MX record for subdomain.



 Such as :

 smtpMX   10.0.106.1



 but this occurs an error:

 dns_rdata_fromtext: /var/named/named.domain.com:18: near '10.0.106.1': not
 a valid number

You missed the preference number, and a MX record should point to an A record, 
not an IP. E.g.:
smtpMX 10   mail.example.net.

-- 
Regards,

Ruben Laban
Systems and Network Administrator
ISM eCompany
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