If needed, the official CERN instructions for this installation are available.

After you login as root, follow these steps carefully:

1. Create the squid user and squid group

   groupadd squid
   useradd -g squid -d /var/cache/squid -s /sbin/nologin squid

2. Mount the partition /var/cache/squid
3. Make the partition owned by squid

   chown squid:squid /var/cache/squid

4. Install the yum repository from CERN

   wget -O /etc/yum.repos.d/cern-frontier.repo http://frontier.cern.ch/dist/rpms/cern-frontier.repo

5. Check to see if you can see the repository:

   yum list frontier-squid

6. Install the frontier-squid package

   yum install frontier-squid

1. The file: /etc/squid/customize.sh must be modified before the squid cache server is started.
   • Change the line:

     setoption("acl NET_LOCAL src", "10.0.0.0/8 172.16.0.0/12 192.168.0.0/16")

     to be:

     setoption("acl NET_LOCAL src", "146.139.52.0/24 146.139.180.0/25 146.139.30.0/25 146.139.116.0/25 130.202.8.0/24 130.202.237.0/25 130.202.173.0/25 146.139.33.0/25 130.202.96.0/22 130.202.24.0/22 130.202.134.0/24 130.202.131.0/24")

2. The firewall for the squid server should have port 3128 opened :
3. Add to file /etc/sysconfig/iptables the line:

   -A INPUT -m state --state NEW -m tcp -p tcp --dport 3128 -j ACCEPT

4. Remember the squid server will only serve requests from network masks as listed in customize.sh
5. Restart iptables

   /sbin/service iptables restart

6. Restart squid server

   /sbin/service frontier-squid restart

• Start the server

  /sbin/service frontier-squid start

• Stop the server

  /sbin/service frontier-squid stop

• Turn on runlevels 3, 4, and 5:

  /sbin/chkconfig --levels 345 frontier-squid on