One way you could do it, is to run squid as a proxy. (as well as blocking all outbound to port 80 traffic, that isn't from the proxy)
That way, you can restrict the access (with black lists), reduce the usage of your connection (because of caching) , and monitor peoples access (from the squid logs) Might not be pretty, but it's a good way of doing it, and has the advantage of being a free open source application. Also means you don't have to span any ports, or stick a hub in just before the firewall. Steve Anderson > -----Original Message----- > From: Sedat DOGRU [mailto:[EMAIL PROTECTED]] > Sent: 30 January 2003 16:09 > To: [EMAIL PROTECTED] > Subject: Monitoring office web use > > > Hi, > > We are searching some (preferrably free source or at most > cheap) tools > that can be used to monitor internet usage. The tool should > be able to > runon linux, directly on the command line or as a deamon.The > tool should > provide us the DNS names of the hosts that are connected to together > with the connection times. > > I have done a search on google but could not find only some advanced > (and probably expensive) tools. > > I've found that with extra scripting effort tcpdump, snort or tcpflow > can be made do the work, but I want to first find an easier solution > > If you know any tools, please let me know > > Thanks in advance, > > > -- > Sedat Dogru > > > **************************************************************************** This e-mail (and any attachment) is intended only for the attention of the addressee(s). Its unauthorised use, disclosure, storage or copying is not permitted. If you are not the intended recipient, please destroy all copies and inform the sender by return e-mail. This e-mail (whether you are the sender or the recipient) may be monitored, recorded and retained by Business Information Publications Limited (BiP). E-mail monitoring/ blocking software may be used, and e-mail content may be read at any time.You have a responsibility to ensure laws are not broken when composing or forwarding e-mails and their contents. ****************************************************************************
