Nmap is an essential tool for anyone who's serious about network security. It can be installed on any Linux distribution.

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 ...

I am conducting a network security audit. I ran port scans on all relevent servers and desktop. I used superscan. It revealed a great deal of information ...

Press "Windows-R" to open a Run box. Type "cmd" -- without quotes here and throughout -- in the "Open" field, then press "Enter." If a User Account Control message displays, click the "Yes" button. A ...

A recent update to an ad block filter list now allows the uBlock Origin extension to block most of the known sites that perform port scans of your local Windows computer. A few weeks ago, we reported ...

Investigations into recent increases in port 5000 scans have revealed the existence of two new worms: Bobax and Kibuv. The W32/Bobax-A worm, which employs the same Microsoft security vulnerability as ...

A major spike in activity targeting TCP Port 1025 on Windows systems may be a sign that attackers are gathering intelligence for an upcoming attack against unpatched servers, Symantec warned Monday.