Hi all, I have 2 web servers . One is Primary and the other is Secondary. Pls asssume ip of primary is 1.2.3.4 ip of secondary 2.3.4.5 I want squid resverse proxy to forward traffic to primary server. When, the primary goes offline, it should forward to Secondary web Server. How can I acheive this task? I am going to keep squid as a reverse proxy in front of them? pls assume ip of reverse proxy is 5.6.7.8 How Can I write rules in squid.conf? pls see below rules. http_port 80 accel defaultsite=your.main.website cache_peer ip.of.primarywebserver parent 80 0 no-query originserver cache_peer ip.of.secondarywebserver parent 80 0 no-query originserver acl our_sites dstdomain your.main.website http_access allow our_sites -- Thank you Indunil Jayasooriya