What is port 443 used for?

Port 443 refers to the web browsing port, which is mainly used for HTTPS services. Its function is to provide a secure Internet protocol to ensure customer security. It is widely used in daily life. Many websites that require online money transactions will use port 443 to ensure security.

The operating environment of this tutorial: Windows 10 system, Dell G3 computer.

What is port 443 used for?

Port 443 is the web browsing port, mainly used for HTTPS services. Its function is to provide a secure Internet protocol to ensure customer security.

Banks generally use port 443. The purpose of doing so is to ensure the safety of customer funds, and secondly, to ensure the security of transactions.

So port 443 is widely used in our daily lives. Many websites that require online money transactions will use port 443 to ensure security.

443 Port Function

1. Providing services to others

Someone once compared the server to a house and the port to the door leading to different rooms (services). It's a nice metaphor if you don't take the details into account. If an intruder wants to occupy this house, he must break in (physical intrusion is another matter). So for the intruder, it is important to know how many doors are opened in the house, what kind of doors they are, and what is behind the door. It's important.

2. Ensure the security of customer transactions

Intruders usually use scanners to scan the ports of the target host to determine which ports are open. From the open ports, the intruder can Knowing what services the target host roughly provides, and then guessing the possible vulnerabilities, port scanning can help us better understand the target host. For administrators, scanning the open ports of the machine is also the first step to take security precautions. step.

Although port 443 guarantees our online transactions, we cannot take it lightly. Port 443 is opened for system services, but hackers will use other ports to invade, so before trading, please check which ports are opened on your computer, and then turn off the unnecessary ones, so as to further ensure the security of your transactions. The editor would like to remind everyone that when trading online, never click on websites of unknown origin. The trading website must be a relatively large website, and it will not send us a private URL, so we must pay special attention to it. .

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