I like to configure a squid proxy server which allows users from the Internet to annonymously connect and then be able to go to other web sites through the proxy. Anyone have a sample configuraiton I can use? The environment is squid 3 on Debian Linux.
This comes from a FreeBSD environment but it's very similar. It's set to listen on 10.0.0.4:8083. However, I would strongly recommend NOT having an open proxy. Unless you're very, very careful and have some form of access control in place you're setting yourself up for trouble. People will launch attacks through your servers, commit fraud through them, etc, etc.
acl all src all acl manager proto cache_object acl localhost src 127.0.0.1/32 acl to_localhost dst 127.0.0.0/8 0.0.0.0/32 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 CONNECT method CONNECT http_access allow manager localhost http_access deny manager http_access deny !Safe_ports http_access deny CONNECT !SSL_ports http_access deny to_localhost http_access allow all deny_info ERR_ACCESS_DENIED all deny_info ERR_ACCESS_DENIED passwords icp_access deny all http_port 10.0.0.4:8083 hierarchy_stoplist cgi-bin ? access_log /usr/local/squid/logs/access.log squid useragent_log /usr/local/squid/logs/useragent.log squid debug_options ALL,7 refresh_pattern ^ftp: 1440 20% 10080 refresh_pattern ^gopher: 1440 0% 1440 refresh_pattern -i (/cgi-bin/|\?) 0 0% 0 refresh_pattern . 0 20% 4320 acl shoutcast rep_header X-HTTP09-First-Line ^ICY.[0-9] upgrade_http0.9 deny shoutcast acl apache rep_header Server ^Apache broken_vary_encoding allow apache