It should be doing that by default; I suggest you stick wireshark or tcpdump on your proxy, fail a DNS server and see what happens. Log a bugzilla report if Squid absolutely doesn't fail over querying the other DNS servers if your first one fails. Fail means "no reply" btw.. Adrian 2008/9/8 Jevos, Peter <Peter.Jevos@xxxxxxxxxxxx>: > Hi > > I'm using latest squid 2.7 and in my resolve.conf there're 2 name > servers. > Unfortunately first didn't work well and all queries was not resolved : > "..Unable to determine IP address from host name..." > > Even though the secondary server was working the quere timeout out after > a couple of minutes. > > How can I manage to try secondary server if primary is out of order? > > Thx > > Br > > pet > >