Manual:Squid caching/Simple config

How to configure Squid as a reverse proxy for a small wiki (only one server, a few web sites) ?

Apache runs on the port 81.

Here is my config for Squid (/etc/squid/squid.conf): http_port 80 defaultsite=mysite.com vhost cache_peer x.x.x.x parent 81 0 no-query originserver hierarchy_stoplist cgi-bin ? acl QUERY urlpath_regex cgi-bin \? cache deny QUERY acl apache rep_header Server ^Apache broken_vary_encoding allow apache cache_dir ufs /var/spool/squid 4000 16 256 logformat common %>a %ui %un [%tl] "%rm %ru HTTP/%rv" %Hs %a %ui %un [%tl] "%rm %ru HTTP/%rv" %Hs %h" "%{User-Agent}>h" %Ss:%Sh access_log /var/log/squid/access.log squid cache_log /var/log/squid/cache.log cache_store_log /var/log/squid/store.log hosts_file /etc/hosts refresh_pattern ^ftp:          1440    20%     10080 refresh_pattern ^gopher:       1440    0%      1440 refresh_pattern. 0      20%     4320 acl all src 0.0.0.0/0.0.0.0 acl mysite dstdomain mysite.com acl manager proto cache_object acl localhost src 127.0.0.1/255.255.255.255 acl to_localhost dst 127.0.0.0/8 acl SSL_ports port 443         # https acl SSL_ports port 563         # snews acl SSL_ports port 873         # rsync acl Safe_ports port 80         # http acl Safe_ports port 81         # 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 631        # cups acl Safe_ports port 873        # rsync acl Safe_ports port 901        # SWAT acl purge method PURGE acl CONNECT method CONNECT http_access allow manager localhost http_access deny manager http_access allow purge localhost http_access deny purge http_access deny !Safe_ports http_access deny CONNECT !SSL_ports http_access allow localhost http_access allow all http_access allow mysite http_access deny all http_reply_access allow all icp_access allow all cache_effective_group proxy coredump_dir /var/spool/squid negative_ttl 0