Looks like it's working now. I'm currently using squid 2.7 stable 4. I use the following line to configure webwasher: cache_peer webwasher parent 3128 3130 no-query default login=PASS My problem was mainly due to webwasher configuration (I didn't use the basic authentication). I Thanks everyone who helped me. Regards, Eric NGUYEN DANG LUAN -----Message d'origine----- De : NGUYEN DANG LUAN, Eric [mailto:eric.nguyen-dang-luan@xxxxxxxxxx] Envoyé : lundi 6 octobre 2008 13:50 À : Henrik Nordstrom Cc : squid-users@xxxxxxxxxxxxxxx Objet : RE: Squid with webwasher using NTLM authentication I'm using squid 2.7 stable 4. Here's the line i use: cache_peer comp parent 3128 3130 default login=PASS Then I run squid using this command: /usr/local/squid/sbin/squid -N -d 1 -D & But It doesn't seem to work. Eric NGUYEN DANG LUAN -----Message d'origine----- De : Henrik Nordstrom [mailto:henrik@xxxxxxxxxxxxxxxxxxx] Envoyé : lundi 6 octobre 2008 12:30 À : NGUYEN DANG LUAN, Eric Cc : squid-users@xxxxxxxxxxxxxxx Objet : RE: Squid with webwasher using NTLM authentication On mån, 2008-10-06 at 10:59 +0200, NGUYEN DANG LUAN, Eric wrote: > I've tried almost all options for cache_peer but it doesn't seem to work. Is it a squid's bug? Did you try login=PASS using squid-2.7? Regards Henrik