How to check which port a proxy uses?
If you think your Internet connection is slower than it should be or if you notice that some websites are blocked during navigation, it is possible that all of your Internet traffic goes through a proxy server.
A proxy server is basically just another computer that is between you and your Internet service provider. It is generally configured in business environments to filter web traffic to and from employees’ computers. In this article, I will show you how to check your proxy settings to find out if your computer is actually using a proxy server or not.
In most cases, you will not really be able to deactivate the proxy server because it is controlled by an administrator. However, sometimes personal computers are accidentally or maliciously configured to use a proxy server.
Check proxy settings in Windows
On Windows, most browsers use the proxy settings defined on the computer. Each browser has a parameter page to adjust the proxy settings, but it is normally enough to link it to the settings dialog in Windows itself.
In Windows 10, there are two ways to modify the parameters: via the Parameters application or via the Traditional Configuration Panel. I will mention the two methods here because the Configuration Panel method is what you should use for Windows 7, 8 or Windows Vista.
Windows 10 parameter app
Click Start, then the icon representing a toothed wheel (Parameters) to the far left. In Settings, click Network and Internet .
In the left pane, click on Proxy at the bottom.
Here you have all the parameters related to the configuration of a proxy in Windows. It is essentially divided into two configurations: automatic or manual proxy configuration . In 99% of cases, everything should be settled on Off . If something is activated, your web traffic could go through a proxy.
If you are using an old version of Windows or if you just like the old method, you can modify the same parameters via the Configuration Panel. Note that, regardless of the method chosen to modify the parameters, there is only one set of proxy parameters in Windows.
Once you have opened the Configuration Panel, simply click Internet Options .
In the Internet Options dialog box, continue and click on the Connections tab, then on the LAN parameters below.
Check proxy settings in Mac OS X
If you are using a Mac with OS X, the procedure is similar. You need to change the proxy settings in system preferences, as this is where most browsers automatically check.
Open System Preferences and click Network . On the left side, be sure to select the connected or active network connection. You can have different proxy parameters for each type of network connection.
At the bottom, click the Advanced button . Click the Proxies tab and you will see a bunch of different protocols that you can configure.
For example, if you click Proxy Web (HTTP), you can enter the IP address of the proxy server, port number, user name and password.
Check the proxy parameters under Linux
Under Linux, it really depends on the distribution you use. Most of the time, it will be a version of KDE or GNOME. For example, in Linux Mint Cinnamon, which relies heavily on GNOME, you have to click the button, then on System Settings .
Then scroll through the screen to Material and then click Network .
Finally, if you click on Proxy network, you can choose between Automatic and Manual .
It’s pretty much the same procedure for Ubuntu as well, which uses Unity and GNOME. It will be different if you use a different office environment. If you have any questions, please do not hesitate to comment. To enjoy!