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Tip of the Day
Language: Java
Expertise: Beginner
Sep 16, 1999

Go Through Proxies With Java

Network administrators make use of proxy servers to enhance the security of their networks. A proxy server can be seen as a service that manages connections between the internet and an internal network. If your network is sitting behind a proxy server, your Java application should know that internet calls will go through a proxy. It should also know the name of the proxy server, as well as the port at which the proxy server waits for internet calls. To provide this information to your Java application you can either have your application code set some system properties, as in:
 
System.getProperties().put( "proxySet", "true" );
System.getProperties().put( "proxyHost", "some_proxy" );
System.getProperties().put( "proxyPort", "8080" );
or set the relevant system properties when you launch your application from the command prompt, as in:
 
java -DproxySet=true -DproxyHost=some_proxy -DproxyPort=8080 SomeClass 
Behrouz Fallahi
 
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