The Sun-Netscape Alliance has begun shipping a new version of its Web server, featuring faster speeds, improved reliability, and more Java support, executives said. The iPlanet Web Server 4.0 is software that handles Web page requests that come in from Net surfers. The new release includes support for the latest versions of Java servlets and Java Server Pages. It also includes tighter integration with development tools and lets programmers debug applications remotely. Cost is $1,495 per processor.