Ubuntu 13.10: install and configure squid3

Here are logs when installing squid3 on Ubuntu 13.10.

Reference

https://help.ubuntu.com/community/Squid

# tail -1 /etc/lsb-release ;uname -ri DISTRIB_DESCRIPTION="Ubuntu 13.10" 3.11.0-18-generic x86_64

install squid3

# apt-get install squid3 # squid3 -version Squid Cache: Version 3.3.8

/etc/squid3/squid.conf

no cache, allow from 192.168.0.0/16

# grep -v ^# squid.conf | grep -v ^$ acl localnet src 192.168.0.0/16 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 deny !Safe_ports http_access deny CONNECT !SSL_ports http_access allow localnet http_access allow localhost manager http_access deny manager http_access allow localhost http_access deny all http_port 3128 coredump_dir /var/spool/squid3 refresh_pattern ^ftp: 1440 20% 10080 refresh_pattern ^gopher: 1440 0% 1440 refresh_pattern -i (/cgi-bin/|\?) 0 0% 0 refresh_pattern (Release|Packages(.gz)*)$      0       20%     2880 refresh_pattern . 0 20% 4320

start squid. By default squid listens to TCP 3128.

# service squid3 restart squid3 stop/waiting squid3 start/running, process 1559 # lsof -ni:3128 COMMAND  PID  USER   FD   TYPE DEVICE SIZE/OFF NODE NAME squid3  1559 proxy    9u  IPv6  10525      0t0  TCP *:3128 (LISTEN)

send HTTP requests to the squid from a client.

# curl --proxy http://192.168.11.23:3128 http://www.google.com

HTTP headers from the client to the squid.

Source port: 38185 (38185)    Destination port: ndl-aas (3128) Hypertext Transfer Protocol    GET http://www.google.com/ HTTP/1.1\r\n        [Expert Info (Chat/Sequence): GET http://www.google.com/ HTTP/1.1\r\n]            [Message: GET http://www.google.com/ HTTP/1.1\r\n]            [Severity level: Chat]            [Group: Sequence]        Request Method: GET        Request URI: http://www.google.com/        Request Version: HTTP/1.1    User-Agent: curl/7.32.0\r\n    Host: www.google.com\r\n    Accept: */*\r\n    Proxy-Connection: Keep-Alive\r\n    \r\n    [Full request URI: http://www.google.comhttp://www.google.com/]    [HTTP request 1/1]

proxy to the web site.

Hypertext Transfer Protocol    GET / HTTP/1.1\r\n        [Expert Info (Chat/Sequence): GET / HTTP/1.1\r\n]            [Message: GET / HTTP/1.1\r\n]            [Severity level: Chat]            [Group: Sequence]        Request Method: GET        Request URI: /        Request Version: HTTP/1.1    User-Agent: curl/7.32.0\r\n    Host: www.google.com\r\n    Accept: */*\r\n    Via: 1.1 ubuntu (squid/3.3.8)\r\n    X-Forwarded-For: 192.168.11.100\r\n    Cache-Control: max-age=259200\r\n    Connection: keep-alive\r\n    \r\n

squid logs.

# less /var/log/squid3/ access.log  cache.log