If you want to just open ports with a click of a button take a look at PFConfig. This program opens the ports you want and closes the ports you don't want with just a click of a button. Is My Port Open To check if your ports are open simply use our Open Port Check tool.

3. WhatsMyIP Port Scanners. As mentioned earlier, a port scanner can also be used to test if a port is open or closed. The difference between a port scanner and a port checker is the port scanner is able to automatically scan a range of IP addresses whereas a port checker is commonly used to check a single port on a single IP address. FTP Connection Issue: How to Check If FTP Port 21 Is Not Jun 16, 2020 Scanning Open Ports in Windows: A Quick Guide (Part 2)

In the External port and Internal port boxes, type the port number. Generally, this number is the same. Click either TCP or UDP, and then click OK. Repeat steps 1 through 9 for each port to open.----- To find open ports on a computer, use netstat command line. To display all open ports, open DOS command, type netstat and press Enter.

Check SQL Server configuration manager to see if it's a specific port, or dynamic ports. If it's using dynamic ports, then as long as you don't have multiple instances on the server, netstat -abn is probably the simplest way to find what it's using.

How to view the list of open ports in Windows

Dec 18, 2018 CentOS / RHEL : How to find if a network port is open or Checking to see if a port is open, blocked, dropped, or filtered at the firewall is not simple. There are two ways to do this: test the port externally list the firewall configuration and examine the output Test remote network port connection in Windows 10 Nov 13, 2016 How to Check all the Open Ports in Your Linux System Finding Open Ports Using netstat Command in Linux If you want to check only the UDP User Datagram Protocol ports, you can also use the network statistics or netstat command. The netstat command can display both receiving and sending end transmission data. Finally, we have one command that can find open ports in Linux by netstat.