Bug 81465

Summary:	/bin/host: resolver is not working properly when INET6 is not in kernel and nameserver is dual
Product:	Base System	Reporter:	Piotr Kucharski <chopin>
Component:	bin	Assignee:	Doug Barton <dougb>
Status:	Closed FIXED
Severity:	Affects Only Me
Priority:	Normal
Version:	4.11-RELEASE
Hardware:	Any
OS:	Any

Description Piotr Kucharski 2005-05-25 13:50:01 UTC

kernel has INET6 commented out, thus no ipv6 support, yet:
host -d -v -t ns sgh.waw.pl. dns.nask.pl.
Using domain server:
Name: a.nask.pl
Addresses: 2001:a10:1:1::44 195.187.245.44

;; res_nmkquery(QUERY, sgh.waw.pl, IN, NS)
;; res_send()
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 30947
;; flags: rd; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
;;      sgh.waw.pl, type = NS, class = IN
;; Querying server (# 1) address = 2001:a10:1:1::44
res_send: socket(dg): Protocol not supported
res_nsend failed
Host not found, try again.

resolver should not even see that "dns.nask.pl" has ipv6 address, not mentioning trying it, but even if it tries it, why it does not continue to ask v4 (which of course works)?

Fix: 

not a fix, but a workaround: define INET6 in kernel config
fix would need to be done in sources
How-To-Repeat: undefine INET6 from kernel config

Comment 1 Bruce Cran freebsd_committer

2009-03-25 17:05:02 UTC

Responsible Changed
From-To: freebsd-bugs->freebsd-net

Over to maintainer(s).

Comment 2 Doug Barton freebsd_committer

2009-03-25 18:25:36 UTC

State Changed
From-To: open->closed


FreeBSD 4 is well past End of Life, and this bug should no longer 
be present in modern versions of BIND, or the OS.  

If you are still experiencing this issue with FreeBSD 6 or newer 
please feel free to file a new PR. 


Regards,

Comment 3 Doug Barton freebsd_committer

2009-03-25 18:25:36 UTC

Responsible Changed
From-To: freebsd-net->dougb


host(1) is part of BIND