Get *NIXy

Squid is one of the first open-source programs I got into. I have spent a lot of time looking at squid.conf The default squid.conf (reference copy in /usr/share/doc/squid/examples/squid.conf) is about 5000 lines by default. It’s great that everything is well-documented but who wants to deal with a massive config file like that? Not me. This was generated with Squid 2.7STABLE9:


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 localnet src 10.0.0.0/8 # RFC1918 possible internal network
acl localnet src 172.16.0.0/12 # RFC1918 possible internal network
acl localnet src 192.168.0.0/16 # RFC1918 possible internal network
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 21 # ftp
acl Safe_ports port 443 # https
acl Safe_ports port 873 # rsync
acl purge method PURGE
acl CONNECT method CONNECT
http_access deny manager
http_access deny purge
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
http_access allow localhost
http_access deny all
icp_access allow localnet
icp_access deny all
http_port 3128
hierarchy_stoplist cgi-bin ?
access_log /var/log/squid/access.log squid
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern -i (/cgi-bin/|\?) 0 0% 0
refresh_pattern (Release|Packages(.gz)*)$ 0 20% 2880
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
extension_methods REPORT MERGE MKACTIVITY CHECKOUT
hosts_file /etc/hosts
coredump_dir /var/spool/squid
useragent_log /var/log/squid/useragent.log
cache_mgr squid@yummypi.com


That is basically the default squid.conf with the comments removed. I removed some of the safe_ports. (Who uses Gopher anymore?) I added in two options that I like to use. The last one is useful in a corporate environment where you want feedback from users (which you can promptly redirect to /dev/null).

I have placed this file at unixsysadmin.org/squid.small.conf and a copy of the default file at unixsysadmin.org/squid.conf if you’d like to wget it or whatever.