About Scanning TCP Open Ports
The TCP Open Port Scanner does just that — scans open TCP ports on a server. Simply put, TCP ports are the endpoints through which your web server communicates for all types of services it provides. The SSH service runs on port 22, the HTTP service runs on port 80 (although the browsers hide this fact from you), while the HTTPS service runs on port 443, etc.
A server that has no open ports is of no use, of course. That said, leaving some of these common ports unnecessarily open is asking for trouble — hackers all over the world use similar port scanning tools and once they find one, they do their best to break in. So it’s better that we use their power against them and lock down the servers before it’s too late!
Geekflare TCP port scanner is powered by powerful Nmap. So, its like executing Nmap online.
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