Remember that scene in The Matrix when Trinity uses a realistic Nmap port scan, followed by an actual SSH exploit (long since patched) to break into a power company? Well, believe it or not, but that ...

It is certainly well known that “hacker tools” can be used for many legitimate purposes. Nmap, the Network Mapper and security scanner is no exception. These days, it is used routinely to identify the ...

Last month we began exploring the dangerous and fun world of scanning, focusing on the powerful port scanner Nmap. Nmap helps system administrators and security auditors (and yes, prospective crackers ...

Figure A: Our nmap results to view at any time. How to find out what’s on your network with Nmap Your email has been sent Have you ever wanted to know what devices were on your network, but didn’t ...

When dealing with computer security, you should assume that hackers will be trying to get in through any available doors your system may have, no matter how many precautions you might have taken. The ...

If you're looking for a way to discover which ports are standing wide open on network machines, read about a powerful cross-platform solution that will do the trick. Editor’s note on June 4, 2015: ...

I'm looking for an online port scanner that lets me give it an IP and list of ports, and tells me if ports are filtered or closed. (like how nmap mentions filtered or closed) GRC shields up refers to ...