How to monitor a computer without getting caught

hello I'd like to know if there is software to monitor a computer on a single Internet connection and unnoticed? thank you for your reponse

You can easily monitor a remote (LAN or Internet) using a software that works with VNC. I use at work to control the hundreds of posts and all this without moving my PC.

I advise you to do that with UltraVNC. And that's all perfectly legal.

There is a lot of software to watch your computer, some are free but most cost money. There are keyloggers so that you can monitor what is typed on a computer. There are programs that sit in the back ground and record every thing on the screen per login.
If you just want to see where a person is going on the internet, that is easy. If they do not clear cookies,temp files or history. Its all stored there.

Download Computer Activity Monitoring 8.04.01.

Computer Activity Monitoring is powerful software designed to monitor and record desktop and internet activities of employee computer in a network. It secretly monitors 'n' number of computers, creates online and offline recordings and takes screenshots of desktop activity every second. Runs invisibly in background and allows viewing of screenshots of desktop and internet activities of the user. Control and monitor computers in a LAN and know every detailed activity of your employees; What your employees do, when are they sitting idile or when are they browsing personal benefitted sites; view every activity LIVE and take snapshots of every activity and create movies for future references. Software is easy to use computer monitoring and desktop activity recording software which records PC activities in real time and allows you to save the displayed screenshots and convert them into movie with online and offline recording options which can be saved and viewed afterwards with Windows Media player. Have complete control on the remote monitored computers; shutdown, restart, log off, start screensaver, remove wall paper and lock any monitored computer over network from your desk and easily send messages over network to monitored computers. Compatible with Windows Vista/Windows XP/ Windows 2003/Windows 2000. Free demo version of the software is available for 07 days of trial which can be tested for monitoring purposes to 01 computer in your network. Download and test the free trial version and purchase the software licenses starting from $129.

Hi.Try to install on his computer LoginTrap.It’s tool can capture every login events by using iSight.And you'll can see what he do.Moreover notify you about login events by email. It must be helpful to you)