Implementing a firewall - ports?
Posted on 2006-07-18
Back in January we purchased a PIX firewall for our webserver, and I have decided I best get around to having it setup properly!
What I need to do is define what ports to allow access to. Now I know there are the basics like port 80 for the website and 21 for FTP, etc but I am not sure what else i need to allow. Is there a program I can get that will tell me what ports are currently open and been used?
And on the other hand, are there any ports that I definately should NOT allow access to?
We run our server from a remote location, so we use Remote Desktop Connection to admin the server, and we also deploy ASP.NET applications on the server.
Any help would be great!
Thanks - Lee