Squid is a HTTP Caching Proxy It can also be used as front end proxy With a redirector script, you can implement a load balancer Squid setup: http_port 80 httpd_accel_host 127.0.0.1 httpd_accel_port 8080 httpd_accel_single_host on httpd_accel_uses_host_header on redirect_program /usr/local/bin/redirect.sh redirect_children 20 Redirector script responsible for: Rewriting URLs Distributing the load over the backends