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Thread: Squid3 simple proxy setup

  1. #1
    Join Date
    Feb 2008
    Beans
    3

    Squid3 simple proxy setup

    I have set up Hardy to use as a little proxy server with a white list for a few Windows kiosks that are located in an unwatched area of a plant. I have no choice about the Windows part. I do not need a DHCP server or a firewall just a simple proxy.

    I followed the instructions from 2 blogs. The proxy is working but not the way I need it to. The white list file is loaded but ignored and https:// sites that are not on the white list load. The blog posts are here



    My squid.conf file is below. Most of it is the default settings that came with Squid3.

    Code:
    #Recommended minimum configuration:
    acl manager proto cache_object
    acl localhost src 127.0.0.1/32
    acl to_localhost dst 127.0.0.0/8
    acl localnet src 192.168.100.0/255.255.255.0, 192.168.101.0/255.255.255.0
    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#Recommended minimum configuration:
    acl manager proto cache_object
    acl localhost src 127.0.0.1/32
    acl to_localhost dst 127.0.0.0/8
    acl localnet src 192.168.100.0/255.255.255.0, 192.168.101.0/255.255.255.0
    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 to_localhost
    
    icp_access deny all
    
    htcp_access deny all
    
    http_port 3128
    hierarchy_stoplist cgi-bin ?
    access_log /var/log/squid3/access.log squid
    
    #We recommend you to use the following two lines.
    acl QUERY urlpath_regex cgi-bin \?
    cache deny QUERY
    
    #Suggested default:
    refresh_pattern ^ftp:		1440	20%	10080
    refresh_pattern ^gopher:	1440	0%	1440
    refresh_pattern .		0	20%	4320
    # Leave coredumps in the first cache dir
    coredump_dir /var/spool/squid3
    
    acl whitelist dstdomain "/etc/squid3/whitelist"
    
    
    http_access deny !localnet
    http_access deny !whitelist
    http_access deny all
    
    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 to_localhost
    
    icp_access deny all
    
    htcp_access deny all
    
    http_port 3128
    hierarchy_stoplist cgi-bin ?
    access_log /var/log/squid3/access.log squid
    
    #We recommend you to use the following two lines.
    acl QUERY urlpath_regex cgi-bin \?
    cache deny QUERY
    
    #Suggested default:
    refresh_pattern ^ftp:		1440	20%	10080
    refresh_pattern ^gopher:	1440	0%	1440
    refresh_pattern .		0	20%	4320
    # Leave coredumps in the first cache dir
    coredump_dir /var/spool/squid3
    
    acl whitelist dstdomain "/etc/squid3/whitelist"
    
    
    http_access deny !localnet
    http_access deny !whitelist
    http_access deny all

  2. #2
    Join Date
    Feb 2008
    Beans
    3

    Re: Squid3 simple proxy setup

    With much help from the Squid mailing lists at www.squid-cache.org here is a corrected squid.conf in case others might be interested. I am running this on Ubuntu 10.4 server AMD64.

    Code:
    #Recommended minimum configuration:
    acl manager proto cache_object
    acl localhost src 127.0.0.1/32
    acl to_localhost dst 127.0.0.0/8
    acl localnet src 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
    http_access deny manager
    http_access deny !Safe_ports
    
    http_access deny to_localhost
    icp_access deny all
    htcp_access deny all
    
    http_port 3128
    hierarchy_stoplist cgi-bin ?
    access_log /var/log/squid3/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
    
    acl whitelist dstdomain "/etc/squid3/whitelist.txt"
    
    # Allow localnet machines to whitelisted sites
    http_access allow localnet whitelist
    
    # block all other access
    http_access deny all

  3. #3
    Join Date
    Nov 2007
    Location
    Denver, CO
    Beans
    20
    Distro
    Ubuntu 7.10 Gutsy Gibbon

    Re: Squid3 simple proxy setup

    This worked for me...thanks!

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