Hey, I have squid version 3.1.9 working as a web forward proxy serving close to 500 users with over 54000 requests every other day. However, of recent, it is failing to communicate with the DNS Server completely which leads to few requests being completed. This has led to a long queue as to the requests supposed to be completed which later causes squid to hang. Shifting the very users to another squid cache causes similar problems. What could be the issue here? Some of the errors generated in the cache.log are here below: getsockopt(SO_ORIGINAL_DST) failed on FD 128: squidaio_queue_request: WARNING - Queue congestion urlParse: URL too large (12404 bytes) statusIfComplete: Request not yet fully sent "POST http://person.com/ims.manage.phtml?__mp[name]=ims:manage&action=bugreport&js_id=47&" WARNING: unparseable HTTP header field {Web Server} Any help is appreciated. Richard Zulu Twitter www.twitter.com/richardzulu Skype: zulu.richard There is no place like 127.0.0.1