I want to install a webiste on a server under an alternative port. But the port is closed may be due to firewall. How to check if a port is open or close?
By using telnet command, we can check if a port is open on our network. After entering the command if we get a blank screen then it means that the port is open.
Method 1- For checking if port is open.
Step 1: Click on Start.
Step 2: Select Control Panel.
Step 3: Choose Programs.
Step 4: Click Programs and Features.
Step 5: Select Turn Windows features on or off.
Step 6: Allow Telnet Client and Telnet Server.
Step 7: Click OK.
Method 2- To close a port.
Step 1: Click on Start button and then Control Panel.
Step 2: Go to Security and on the Windows Firewall settings then save it.
Step 3: Select Exceptions through the Menu.
Step 4: Find port 21 and remove it.
