You must set and append_domain for FQDN use: # TAG: append_domain # Appends local domain name to hostnames without any dots in # them. append_domain must begin with a period. # # Be warned there are now Internet names with no dots in # them using only top-domain names, so setting this may # cause some Internet sites to become unavailable. # append_domain .mydomain.tld -- Best regards, Loïc BLOT, UNIX systems, security and network expert http://www.unix-experience.fr Le lundi 14 janvier 2013 à 18:47 +0100, Frank Lanitz a écrit : > Hi folks, > > I've got a weird issue I have no starting point: > Squid 3.0 is running as a transparent proxy on one host. When I lookup a > localhost e.g. mail (like in mail.example.com) I've got a IP, but when I > ask Squid to connect to http://mail it's just giving me an DNS-error. > I've set dns_nameservers with a valid DNS as well as visible_hostname to > the name of the host running Squid. How is DNS resolving working on > Squid and how I maybe can debug this? > > Thanks, > Frank