Hi all. Thank you for the answers. Here we go: Flávio -> Guido: first: sorry my english and my dummy questions. :) 1) I can't see any error running "squid -k parse". 2) I tried to run squid only as root. I can't run as "squid" (my cache_effective_user), because, I cant do "su squid" (I dont know the password). 3) Sorry, but how to 'output to stderr what users.sh is receiving from squid'?? Thank you very much. Flávio