[squid-users] Force DNS queries over TCP?

Alex Crow acrow at integrafin.co.uk
Thu Jun 30 17:34:32 UTC 2016

I'd suggest changing IP as this practice is

a) a violation of trust, forcing you to use a potentially compromised
resource you have no control over
b) a clear violation of net-neutrality
c) a violation of standards (as it's probably one of those that instead
of returning NXDOMAIN as required sends you to an advertising page.
I'm pretty sure you /can/ configure BIND to work like that. I should
imagine you could set up forwarders to TCP-based DNS servers.

The other option is to get a DNS server set up on a VPS and tunnel your
requests to it via IPSEC.


On 30/06/16 18:21, Chris Horry wrote:
> Hello,
> My ISP have started forcing DNS queries to pass through their own DNS
> server, which appears to have many issues (can't resolve twitter.com for
> one).  I won't bore the list with my conversations with them over that part.
> They are not actively blocking TCP DNS queries so I have a workaround.
> Recognising that DNS over TCP is not an ideal solution....
> 1. Can Squid be configured to use TCP by default for DNS inquiries?  If
> not consider this a feature request :)
> 2. Is there a DNS caching server that can do this instead (BIND9 doesn't
> seem to have it as an option)
> Any help appreciated.
> Thanks,
> Chris
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