hostname -f
must return a fully-qualified name (including a domain). If it does not, then the /etc/hosts
file should be edited to contain the full name of the system (for instance, arrakis.falcot.com
). The official computer name should be validated with the network administrator in order to avoid potential name conflicts.
/etc/squid3/squid.conf
configuration file and allowing machines from the local network to run queries through the proxy. The following example shows the modifications made by the Falcot Corp administrators:
예 11.25. The /etc/squid3/squid.conf
file (excerpts)
# INSERT YOUR OWN RULE(S) HERE TO ALLOW ACCESS FROM YOUR CLIENTS # Example rule allowing access from your local networks. Adapt # to list your (internal) IP networks from where browsing should # be allowed acl our_networks src 192.168.1.0/24 192.168.2.0/24 http_access allow our_networks http_access allow localhost # And finally deny all other access to this proxy http_access deny all
squid
itself does not perform the filtering; this action is delegated to squidGuard
. The former must then be configured to interact with the latter. This involves adding the following directive to the /etc/squid3/squid.conf
file:
url_rewrite_program /usr/bin/squidGuard -c /etc/squid3/squidGuard.conf
/usr/lib/cgi-bin/squidGuard.cgi
CGI program also needs to be installed, using /usr/share/doc/squidguard/examples/squidGuard.cgi.gz
as a starting point. Required modifications to this script are the $proxy
and $proxymaster
variables (the name of the proxy and the administrator's contact e-mail, respectively). The $image
and $redirect
variables should point to existing images representing the rejection of a query.
service squid3 reload
command. However, since the squidguard package does no filtering by default, it is the administrator's task to define the policy. This can be done by creating the /etc/squid3/squidGuard.conf
file (using /etc/squidguard/squidGuard.conf.default
as template if required).
update-squidguard
after each change of the squidGuard
configuration file (or one of the lists of domains or URLs it mentions). The configuration file syntax is documented on the following website: