# cd /etc/squid/
  # wget http://www.squid-cache.org/contrib/squid_radius_auth/squid_radius_auth-1.09.tgz
  # tar -zxvf squid_radius_auth-1.09.tgz
  # cd squid_radius_auth-1.09
  # make
  # make install


  # vi /etc/squid/squid_radius_auth.conf
  ### squid_rad_auth configuration file
  ### MvS: 28-10-1998
  server 127.0.0.1
  secret dark123

  auth_param basic program /etc/squid/squid_radius_auth   -f  /etc/squid/squid_radius_auth.conf
  auth_param basic  children  6
  auth_param basic  realm  DarkLove  Proxy  Access
  auth_param basic credentialsttl  2  hours
  auth_param basic casesensitive  off
  acl AuthUsers proxy_auth REQUIRED
  http_access allow all AuthUsers