Most people might figure that once you set up your network security-wise, what's done is done, and besides routine updates, not much is going to change. You fix things when something breaks, when a ...

Install nmap if you don't already have it on your Linux computer. Run "sudo apt-get install nmap" on Ubuntu, or "sudo dnf install nmap" on Fedora. To do a quick scan of your network and discover the ...

I ran a port scan on my BSDi server and it tells me ports 916, 917, etc through 921 are open. I can telnet to them and it connects but gives no response of any kind. I can't find any unwanted services ...

Hi, these last days I have been having trouble with my internet, and when I checked my router logs I got this: Xmas port scan attack from WAN (ip:69.164.26.100) detected. Xmas port scan attack from ...