Configuring Talend Data Preparation to use a proxy server

You can add new parameters to configure the use of a proxy server for Talend Data Preparation at the operating system level.

The use of a proxy server comes with the following limitations:

Aside from local files, you will only be able to create Database datasets.
The All data export option will only be available for local file formats, and not Amazon S3.
You have to use a SOCKS proxy, as shown in the following documentation.

Before you begin

The proxy configuration for Talend Data Preparation is available only if you have installed the TPS-5556 patch delivered by Talend.

Procedure

In the Windows Environment variables configuration panel, add three new system variables with the following names and values:

System variables for proxy configuration
Name	Value
socksProxySet	true
socksProxyHost	<your_proxy_server_IP>
socksProxyPort	<your_proxy_server_port>

In the start.bat file of the Talend Data Preparation installation folder, add the following parameters, with the values corresponding to your proxy server:
```
-DsocksProxySet=true
-DsocksProxyHost=<proxy_server_IP>
-DsocksProxyPort=<proxy_server_port>
-DsocksNonProxyHosts=<TDP_server_host>
```
Restart the Talend Data Preparation server.

What to do next

If your proxy server is installed on a virtual machine or a different machine than the Talend Data Preparation server, you need to authorize communication between the proxy server and the Talend Data Preparation server.

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