I'm on a high speed network w/ Cox@Home ISP. I'm getting hit daily w/ attempted breakins. I'm running a program called Intruder Alert99. That's how I've learned my system's being poked at. The system I have my cable modem on right now is running Windows95B. I use another program called Visual Route to try and track down the culprit(s). I've narrowed them down to as far away as Norway, Minnesota, and Florida. Although I've tracked them down that far, I'm at a loss as to what to do beyond that. Also, I'm not confident that Intruder Alert can stave off all attacks. Can it detect all the hits? The ports that IA99 is monitoring are: 21-FTP 23-Telnet 25-SMTP 53-DNS 70-Gopher 79-Finger 80-HTTP 110-POP3 443-HTTPS 513-Login 514-Remote Command 31337-Back Orifice So far, IA99 has detected attempted breakins on Ports 21, 23, and 80. I have NT Workstation 4.0 - I even have Back Office. I bought them both ages ago but just haven't had time to load either or both of them up. I've never set up a fire wall but am game if that's what I need to do. Is it time for me to load up NT4.0 Workstation and set up a fire wall or can I count on IA99 to fend off these attacks? I have another system - a Pentium 233MMX - ready to build up. I could use my Pentium 133 for a Proxy Server if I need one and go ahead and build up the 233 system. That'll be 3 systems on my network. I have one more client - a K62/400 running Win98. I'd like to setup internet access for both computers on the network anyway. I probably can take care of that at the same time if I need to use a Proxy Server - yes? Can a Proxy Server serve as my firewall or is that another animal altogether? These are the systems I have to work with. I have each of the Microsoft Client OSs. Can you folks suggest a setup using this equipment that would keep my systems safe (short of having to unplug my network cable)? Thank you in advance for your advice and assistance. Joan [log in to unmask] PCBUILD maintains many useful files for download on our web site - visit our download page at: http://nospin.com/pc/files.html