QUICK TIP - An important thing when you open ports TCP/UDP on OSs

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Open ports should be a common tasks that many IT roles should know clearly about this task such as download torrent files, website developers, IT network engineering, cloud support assistant and common learners… Thus, it is not only popular but also is essential for these roles.

Why do we need to open ports?

A firewall is a crucial aspect of computing and no PC should ever be without one. This is the reason why  many popular firms like Microsoft, Apple has designs OS which has one installation package and active as standard and default setting that ensure it enough to be safe.

OS Firewall occasionally allow which program communicate with the network, which is where opening ports comes in and out. If you want to know how to open ports in your operating systems, here’s right place to show you how.

How the firewall operate through the specific ports?

The firms design Firewalls inside the OS to protect, control and monitor the whole system from threats. Threats could be from both the outside and inside trying to get in or out. It does this by blocking network-enabled ports.

When a program tries to connect through specific port, the firewall control and check its database flows of rules to verify if it is allowed or not.

If it doesn’t know, it asks you, which is why you sometimes see prompts asking you if a particular program is permitted to access the internet or it also warns you with a notification about connect issue.

Then, it may ask you to check the specific port that it needs to connect. This is how to open ports for software, game and local host websites or specific devices.

Windows 10 setting.

Open ports in Windows 10

You can manually permit a program to access the internet by opening a firewall port. You will need to know what port it uses and the protocol to make this work.

  1. Navigate to Control Panel, System and Security and Windows Firewall.
  2. Select Advanced settings and highlight Inbound Rules in the left pane.
  3. Right click Inbound Rules and select New Rule.
  4. Add the port you need to open and click Next.
  5. Add the protocol (TCP or UDP) and the port number into the next window and click Next.
  6. Select Allow the connection in the next window and hit Next.
  7. Select the network type as you see fit and click Next.
  8. Name the rule something meaningful and click Finish.

You now can open ports as you want in Windows 10!

Bonus troubleshooting-Open ports

When you read the article up to here, you already success to configure opening port. Now, you can continue the next final step to check that you done right or not.

Fortunately, windows has a useful command that can help you to check it for troubleshooting steps. This step ensures you can open ports successfully or not?

There are many ways to complete this task. However, base on our experience, we will show you the most two popular and convenience ways as demonstrate below. There is an example that we open a port for an application name picpick.

Option One: View Port Use Along with Process Names

First, you’ll need to open the Command Prompt in administrator mode. Hit Start, and then type “command” into the search box. When you see “Command Prompt” appear in the results, right-click it and choose “Run as administrator.”

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