Today we will discuss how to check whether a port is open or not, and also describe how to activate it in a Windows environment. Most of the servers and computer programs used to access the global network, they interact with each other. These operations are possible due to port activation. They allow access and organize the connection.
Firewall
You need to know exactly if the port is open, because if it is temporarily unavailable, invitations along the way are lost and do not arrive. To activate, you must perform a series of steps, which will be discussed later. Today we will describe in detail how
to open ports on Windows. First of all, open the “Control Panel”. Change the option of viewing the content to “Small Icons”. We pass to function "Windows Firewall". In the left part of the window there are several items, among them we find and apply "Advanced Options". Go to the next
dialog box.Create Connection Rules Wizard
To
check if the port is open, use the function related to increased security. In the new window, select "Incoming Connection Rules." Next, we proceed to the development of the algorithm. This will help a special "Wizard", the purpose of which is to create connection rules. This tool will tell you how to carry out further actions. At the same time, a number of important questions will come from him. Answer options are also provided in advance. We carefully read the prompts located on the
pop-up windows and, if necessary, click the "Continue" button.
Incoming connection
If the port is not open, we have to go through all the stages of the wizard. First of all, we are offered to choose the type of rule being created. We put a tick in front of the item “For the port”, click the “Next” button. Select "Inbound Connection". Go to the next step. Next, to open the port, select its number or range. In this way, unhindered access to various servers can be ensured. We will see a line in which we are talking about certain local ports.
Resolution
If the port is already open, but you need to do the same with others, separate them with hyphens and click the "Next" button. At the next stage, we will be offered all kinds of connection options. We proceed to the next stage and check the box “Allow connection”. Thus, the presented connections will become available for PC. Click the "Next" button. The rule being created is applied to the domain, private and public profile, therefore we mark them during the opening of the port. When all the actions are completed, click the "Finish" button. The wizard will complete the work. We, in turn, will be able to establish connections or receive messages through the new available port.
Router
This device allows you to easily connect several devices to the Internet without any difficulties, while its configuration also directly relates to our current topic. Such a device acts as a router, provides access to network resources, and also allows you to open ports. First of all, we need to open the router itself. Launch the browser and go to the router. Next, we will see a line in which we enter the internal IP. Most often it looks like this: 192.168.1.1. In case of an error, enter 192.168.0.1.
At the next stage, we go through authorization in the system. For this purpose, fill the next window with the necessary data. We are talking about the username and password that are provided by the provider. In most cases, it is enough to specify the word admin in both fields. If this data does not fit, we look under the router. Below we find all the necessary information. We will see a window with a special navigation panel. Go to the Advanced Setup section. After that we find and use the NAT function. Then we click on the Add button (in the Russian version of the interface the path is as follows: “Settings” and “Add”). In the next window we will find a number of special fields: username, PC address, external and internal port. The combination that needs to be made in the first paragraph, we have to come up with on our own. At the same time, it should be as memorable as possible. You can also select a name using the list provided. In the address bar, enter the internal IP. In the fields of the external port, indicate the following numbers 25565. As a result, the internal port will be specified automatically. Next, click the "Save" button and open the port through the operating system firewall. Any computer connected to the network has 65535 ports. We are talking about a kind of "doors" that open access to data. Thus, the interaction of several devices is possible. However, a port must be open for this, otherwise access to the contents of the PC will be limited. Speaking of routers: thanks to them, data packets that come from the network are distributed through the local network between devices. A wireless connection can be established not only between a PC, but even with cameras and home appliances.