HI Amos, Thanks for the answer. I did had the following in auth_param program /usr/lib/squid/ncsa_auth /etc/squid/squid_user but then removed it as well as I got the same error. So im not so sure what els I wants from me. Thanks Andrew -----Original Message----- From: Amos Jeffries [mailto:squid3@xxxxxxxxxxxxx] Sent: 25 January 2012 17:28 To: squid-users@xxxxxxxxxxxxxxx Subject: Re: Problem with auth on Squid 3 On 26/01/2012 4:02 a.m., Andrew Burger wrote: > Hi There, > > I'm using squid 3.1.10 and have a problem with authentication. > > It work on my prevois version but on the my new Centos 6.2 it just don't want to. > > Please see below error. > > Starting squid: [FAILED] > 2012/01/25 16:50:12| Processing Configuration File: > /etc/squid/squid.conf (depth 0) > 2012/01/25 16:50:12| Can't use proxy auth because no authentication schemes are fully configured. > FATAL: ERROR: Invalid ACL: acl authenticate proxy_auth REQUIRED > > Squid Cache (Version 3.1.10): Terminated abnormally. > CPU Usage: 0.004 seconds = 0.002 user + 0.002 sys Maximum Resident > Size: 19056 KB Page faults with physical i/o: 0 > > Here with my squid conf file. > > # > # Recommended minimum configuration: > # > acl manager proto cache_object > #acl localhost src 127.0.0.1/32 ::1 > #acl to_localhost dst 127.0.0.0/8 0.0.0.0/32 ::1 > > # Example rule allowing access from your local networks. > # Adapt to list your (internal) IP networks from where browsing # > should be allowed > #acl localnet src 10.0.0.0/8 # RFC1918 possible internal network > #acl localnet src 192.168.0.0/16 # RFC1918 possible internal network > #acl localnet src fc00::/7 # RFC 4193 local private network range > #acl localnet src fe80::/10 # RFC 4291 link-local (directly plugged) machines > > acl SSL_ports port 443 > acl Safe_ports port 80 # http > acl Safe_ports port 21 # ftp > acl Safe_ports port 443 # https > acl Safe_ports port 70 # gopher > acl Safe_ports port 210 # wais > acl Safe_ports port 1025-65535 # unregistered ports > acl Safe_ports port 280 # http-mgmt > acl Safe_ports port 488 # gss-http > acl Safe_ports port 591 # filemaker > acl Safe_ports port 777 # multiling http > acl Safe_ports port 777 # multiling http > acl purge method PURGE > acl CONNECT method CONNECT > acl localnet src 192.168.15.0/24 > acl to_localnet dst 192.168.15.0/24 > acl authenticate proxy_auth REQUIRED > acl CONNECT method CONNECT <snip> You have an ACL which mandates authentication to pass. But no auth_param to say what type of authentication your Squid is checking and how. Which is Exactly what Squid is complaining about with "no authentication schemes are fully configured". Amos