HTTP doesn't maintain a connection. You send a request, it serves that request then does nothing until another request is sent. You can't accurately measure the time someone spends reading a webpage. They could go to a website that has "War & Peace" on it, spend all week reading it and your logs would only show the initial page download (request) when in fact that person spent 24 hours a day, 5 days a week reading. Thomas J. Raef e-Based Security, LLC www.ebasedsecurity.com 1-866-838-6108 "You're either hardened, or you're hacked!" > -----Original Message----- > From: Polenyik Tibor [mailto:pt@xxxxxxxxxx] > Sent: Thursday, November 08, 2007 5:07 AM > To: squid-users@xxxxxxxxxxxxxxx > Subject: time > > > Hi, > > I'd like to measure the time how many time a machine (ip address) use > the internet, web browsing. > > Is it possible ? > > > > > > Thanks > > > > > >