Ok here is a situation today morning I had rebooted the server and I observed and I see response for one of the application complaining http://myserver.com/app1 This is the error I see in browser Proxy Error The proxy server received an invalid response from an upstream server. The proxy server could not handle the request GET /app1. Reason: DNS lookup failure for: myserver.com Where as if I were to check only http://myserver.com then I can see every thing very properly without any error. Here is my apache2 configuration http://pastebin.com/aXceB1wt here is access log on the server which is front end (acts as reverse proxy) http://pastebin.com/tggRRY2E and error log on reverse proxy server http://pastebin.com/vGQZS4xb and the server where the application is actually hosted I do not see any log which can help me to understand that the request /app1 actually reached there. How ever I tried to see the http headers in http_live here they are http://pastebin.com/QX2FeUtp So what can this error be pointing to ? Since until 2-3 days back every thing was working perfectly with same settings and same configurations. Today I had restarted server after many days just for maintenance and after reboot I find all applications except the one which I pointed here working properly. --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx
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