The Windows Defender Firewall can be configured to allow or block programs on a computer from accessing network or Internet resources. It also allows or blocks connections to and from other computers ...

Linux is highly secure, but you should still have a firewall. You should know if your ISP's hardware (gateway) uses a firewall. One of the easiest Linux firewalls is UFW and its GUI sidekick, GUFW.

Generally, the way the ping command works amongst other network tools, is simply by sending special packets known as Internet Control Message Protocol (ICMP) Echo Requests to a target device, and then ...