I would like to have the log of websites visited by some of my employees and block some through my firewall. I am looking for a somple solution, free if possible. My firewall does not log requests (D-Link DFL-800) but can block sites, so I have to find someway to log the web activity. I do not want to install a proxy server or so, because I am an IT manager and the people I want to monitor are IT support staff, so they will know that. I think installing some application on each computer is the solution but is there another way? If not, what is the program to install? Any advice is highly appreciated.