Re: Name resolution from within a jail?

[Joerg Sonnenberger <joerg@xxxxxxxxxxxxxxxxx>]

On Tue, Jul 18, 2006 at 03:19:38PM +0900, YONETANI Tomokazu wrote:
> Then I started tcpdump on another machine(192.168.2.175) running named,
> and found that DNS queries from a jail on an IP alias are received but
> not responded to by that machine:
> 
> A DNS query from the jail host(which is responded to by 192.168.2.175)
> 14:24:50.669966 192.168.2.18.1256 > 192.168.2.175.domain:  8711+ ANY? . (17)
> 0x0000   4500 002d e17a 0000 4011 1334 c0a8 0212        E..-.z..@..4....
> 0x0010   c0a8 02af 04e8 0035 0019 5184 2207 0100        .......5..Q."...
> 0x0020   0001 0000 0000 0000 0000 ff00 0100             ..............
> 
> A DNS query from `repos'(not responded to)
> 14:25:05.099087 192.168.2.20.1257 > 192.168.2.175.domain:  60734+ ANY? . (17)
> 0x0000   4500 002d e1eb 0000 4011 12c1 c0a8 0214        E..-....@.......
> 0x0010   c0a8 02af 04e9 0035 0019 8649 ed3e 0100        .......5...I.>..
> 0x0020   0001 0000 0000 0000 0000 ff00 0100             ..............
> 
> Does anyone have any idea why the second query is ignored?

Have you verified that the ARP cache of the DNS server contains entries
for both IP addresses? That's what I can think of immediately.

Joerg