Usage: java -jar selenium-server.jar [-interactive] [options]

We also support two Java system properties: -Dhttp.proxyHost and -Dhttp.proxyPort. Selenium RC normally overrides your proxy server configuration, using the Selenium Server as a proxy. Use these options if you need to use your own proxy together with the Selenium Server proxy. Use the proxy settings like like this:

java -Dhttp.proxyHost=myproxy.com -Dhttp.proxyPort=1234 -jar selenium-server.jar
If your HTTP proxy requires authentication, you will also need to set -Dhttp.proxyUser and -Dhttp.proxyPassword, in addition to http.proxyHost and http.proxyPort.
java -Dhttp.proxyHost=myproxy.com -Dhttp.proxyPort=1234 -Dhttp.proxyUser=joe -Dhttp.proxyPassword=example -jar selenium-server.jar