On Wed, 24 Feb 2010 11:47:47 -0300, Ariel <lauchafernandez@xxxxxxxxx> wrote: > a question, is possible to use the same configuration file of squid > 2.7.stable3 in squid 3.1? without realising modifications to the same Both yes and no. * 2.7 and 3.1 both support the include feature. * They also share many configuration options which are unchanged. * Three are options that are automatically 'upgraded' to the 3.1 syntax when read by 3.1. * There are the options which you really don't need to configure and can ignore. So... by pruning out the options which are fatal to one particular version, you can fairly easily create a squid.conf-2 and squid.conf-3 and a subdirectory with shared bits included by those. The same way as modern multi-instance Squid are setup now. Amos