Einfache Config für Squid


In einem internen Netz sollen die Server nur via Proxy „nach draußen“. Unter Debian wird Squid z.B. mit

$ apt-get install squid3

installiert. Für CentOS wäre dies

yum -y install squid

Anschließend kann man in der Konfigurationsdatei /etc/squid/squid.conf folgende Einträge machen

#Recommended minimum configuration:
acl manager proto cache_object
acl localhost src 127.0.0.1/32
# acl to_localhost dst 10.0.0.0/8
acl localnet src 10.0.0.0/8
# 0.0.0.0/8 192.168.100.0/24 192.168.101.0/24
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 localnet
http_access deny manager
http_access deny !Safe_ports

#http_access deny to_localhost
http_access always_direct localnet
icp_access deny all
htcp_access deny all

http_port 3128
hierarchy_stoplist cgi-bin ?
access_log /var/log/squid/access.log squid


#Suggested default:
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
# Leave coredumps in the first cache dir
coredump_dir /var/spool/squid3

# Allow all machines to all sites
http_access allow all