[Dnsmasq-discuss] Clients bypassing dnsmasq server intermittently

guy at desgames.com guy at desgames.com
Wed Sep 29 00:02:49 BST 2010


No - I forgot to mention that, sorry. I only have the ip of the dnsmasq server.

On Tue, Sep 28, 2010 at 3:48 PM, Don Muller <don at djmuller.com> wrote:
> Do you have any dns servers hardcoded on your macbook?
>
>> -----Original Message-----
>> From: dnsmasq-discuss-bounces at lists.thekelleys.org.uk [mailto:dnsmasq-
>> discuss-bounces at lists.thekelleys.org.uk] On Behalf Of guy at desgames.com
>> Sent: Tuesday, September 28, 2010 5:14 PM
>> To: dnsmasq-discuss at lists.thekelleys.org.uk
>> Subject: [Dnsmasq-discuss] Clients bypassing dnsmasq server
>> intermittently
>>
>> I recently set up dnsmasq on an office server and have successfully
>> configured it to act as an office DNS server. So far it seems to work
>> fine, the only problem being that after a while my specific computer
>> (a macbook with OSX 10.6) sometimes starts bypassing the dnsmasq
>> server and resolving a particular office server hostname using the
>> real-world IP, and not the local one. I'm not sure if this is
>> happening for any other people in the office as the server in question
>> is not yet being accessed by anyone but me. I'm also not sure if this
>> is happening for another other servers in the office, or just the
>> specific one I noticed.
>>
>> Anyway, my dnsmasq,conf file is as follows (just the uncommented
>> lines):
>>
>> expand-hosts
>> domain=xxxxxxxx.com
>> dhcp-range=eth1,192.168.1.100,192.168.1.200,12h
>> dhcp-option=option:netmask,255.255.255.0
>> dhcp-option=option:router,192.168.1.1
>> dhcp-option=option:dns-server,192.168.1.25
>> dhcp-option=option:domain-name,xxxxxxxx.com
>> dhcp-option=28,192.168.1.255
>> dhcp-option=option:domain-search,xxxxxxxx.com
>> conf-dir=/etc/dnsmasq.d
>>
>> The behaviour I'm seeing is that when I try to ping or connect to
>> dev1.xxxxxxxx.com (or just dev1), it should resolve to 192.168.1.26,
>> which it does....for a while. However, more than once I've discovered
>> that it's started resolving to the outside IP which is something like
>> 24.x.x.x. The only way to fix it is to drop my wireless connection and
>> then reconnect. FYI, I've disabled the DHCP server on the wireless
>> router.
>>
>> Any idea what's happening?
>>
>> Thanks,
>> Guy
>>
>> _______________________________________________
>> Dnsmasq-discuss mailing list
>> Dnsmasq-discuss at lists.thekelleys.org.uk
>> http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
>
>



-- 
Guy Knights
Systems Administrator
DES Games
www.desgames.com
guy at desgames.com



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