[squid-users] dns children setting breaks my squid.conf

[B. Henry]

Here's is what I have in my working squid.conf related to dns. 
Note that the dns children entry is commented out as when I try and use any value this breaks things and I can't use the server at all.

positive_dns_ttl 3 hours

negative_dns_ttl 30 seconds

#minimum_expiry_time 30 seconds

#dns_children 7

dns_timeout 90 seconds

#dns_nameser 208.67.222.2224.2.2.4
 
This is squid 3.1.19 on ubuntu 12.04 64bit server. It's a openvz vps, not baremetal if that counts for anything.  

it uses two other google dns servers actually, so I defined the proxy to use an opendns and one google dns server, same ones I usually use on my local 
hardware.
Thanks for any ideas.
 
-- 
     B.H.
   Registerd Linux User 521886

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