How to Integrate a Proxy Server with MetaDefender Update Downloader

Linux

For Linux installations of MetaDefender Update Downloader
To configure MetaDefender Update Downloader to use a proxy server:

1. Change to the following directory: /etc/default

2. Open the ometadownloader file using a text editor.

3. Locate the following line: https_proxy=http://host:port

4. Update the proxy address and port to match your environment. For example: https_proxy=http://10.10.1.0:8080

5. Save the file after making the changes.

Windows

For Windows installations of MetaDefender Update Downloader

MetaDefender Update Downloader can use the proxy settings configured at the Windows operating system level.

The netsh winhttp command configures the Windows WinHTTP proxy settings.

Configure the proxy server

1. Open Command Prompt as Administrator.

2. Run the following command:

   netsh winhttp set proxy <proxy_server>:<port>

   For example:

   netsh winhttp set proxy 10.1.0.10:8080

3. After the command is completed, Windows will display the current WinHTTP proxy configuration.

   Example:

   Current WinHTTP proxy settings:

   Proxy Server(s) : 10.1.0.10:8080

   Bypass List : (none)

Verify the proxy configuration

To confirm that the proxy server is configured correctly:

1. Open Command Prompt.

2. Run the following command:

   netsh winhttp show proxy

3. The current WinHTTP proxy settings will be displayed.

   Example:

   Current WinHTTP proxy settings:

   Proxy Server(s) : 10.1.0.10:8080

   Bypass List : (none)

In some cases, setting the proxy with netsh winhttp set proxy is not sufficient. Windows services running under the Local System account read proxy settings from their own profile, not from the netsh setting. In that case, you may need to set the proxy by starting Edge with SYSTEM rights and configuring the proxy in Internet Options.

Applies to

Windows services (such as OPSWAT products) that cannot reach the internet after the proxy was set with netsh.

Set the proxy through Internet Options as SYSTEM

1. Download PsTools from Microsoft and extract PsExec.exe.

2. Open Command Prompt as Administrator.

3. Run:

psexec -i -s control.exe inetcpl.cpl

This opens the Internet Options window as the SYSTEM account.

4. Go to the Connections tab and click LAN settings.

5. Select Use a proxy server, enter the proxy address and port, and click OK.

6. Restart the affected service.

Note: On older systems you can also run psexec -i -s "C:\Program Files\Internet Explorer\iexplore.exe" and open Internet Options from the IE menu. On Windows 11, use the control.exe inetcpl.cpl command above instead.