Hello everyone, I am using two squid server with two different internet ISP. One squid server-1 with ISP-A always use by my users to browse the INTERNET. Another server-2 is serving as a mail server and also squid but squid service is always down. Squid service will start on this server only if my ISP link on server-1 is down. I have to start this squid manually. Also need to change the proxy IP to all users end manually. i try to configure another squid proxy server to redundant squid proxy, like Is it possible to redundant two squid? Not load balance, just redundant if no internet link to any either server. I also try with following configuration, using three squid proxy: Proxy server (users only use this server as a proxy server) - cache_peer proxyserver1 parent 3128 3130 weight=90 cache_peer proxyserver2 parent 3128 3130 weight=10 no-query never_direct allow all proxyserver1 ? (Default configuration) Proxyserver2 ? (Default configuration) Working fine but not serving my purpose. When ISP link is down on my proxyserver1, users cannot browse. I also change ?cache_peer proxyserver2 parent 3128 3130 weight=10 no-query? to ?cache_peer proxyserver2 parent 3128 3130 weight=10? remove the word no-query, but then both server get busy for internet browsing, I don?t want my server-2 (mail server) to get busy every time and slow down the mail send and receive. So anyone have any idea. Thank you. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com