Ports (port scanner)

What it does: tries a TCP connection to each port and lists which are open, with the common service name. Same IPv4/IPv6/Auto family picker as Ping/Trace/Path ping.

Safe to run: scan your OWN hosts. Scanning systems you don't own/aren't authorized for can violate policy or law.

Reading results: "open" means something is listening (e.g. 443 = HTTPS, 22 = SSH). Unexpected open ports on a device can indicate misconfiguration or an unwanted service.