bugZoneCheck - Bugs: bug #33390, Unhandled Dnsruby exception when...

 
 

bug #33390: Unhandled Dnsruby exception when no global IPv6 connectivity available

Submitter:  None
Submitted:  Tue 24 May 2011 03:20:54 PM UTC
   
 
Category:  input Severity:  High
Priority:  5 - Normal Item Group:  Crash/Error
Status:  None Privacy:  Public
Assigned to:  None Open/Closed:  Open
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Wed 25 May 2011 01:20:53 PM UTC, comment #1: 

Indeed, dnsruby is wrong to catenate the address and the port. Following RFC 3986, section 3.2, it should display:

dnsruby can't connect to [2A01:4F8:131:1282:BB24:D444:70F4:1D4A]:53 from ...

Stephane Bortzmeyer <bortzmeyer>
Group administrator
Tue 24 May 2011 03:20:54 PM UTC, original submission:  

When running on an host with IPv6 enabled but no true global IPv6 connectivity, in case of a nameserver having an AAAA record, Dnsruby tries to contact it and fails with error message "ERREUR: dnsruby can't connect to 2A01:4F8:131:1282:BB24:D444:70F4:1D4A:53 from :::52964, use_tcp=false, exception = Errno::ENETUNREACH, Network is unreachable - "

(the error message seems to be created inside lib/Dnsruby/PacketSender.rb by method send_dnsruby around line 387)

In the same way as bug #33199, Zonecheck does not correctly catch this error, hence the exception completely halts zonecheck and messes the output.

As a side note, the Dnsruby message may be confusing to some users, because the concatenation of the IPv6 address with the port number and a colon in between, looks like a new IPv6 address, which it isn't.

Anonymous

 

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