Sun is announcing on Wednesday availability of Sun Web Stack, which puts the company’s own twist on the popular open-source LAMP (Linux Apache MySQL Perl/Python or PHP) stack.

The company is unveiling the stack at the O'Reilly Open Source Convention (OSCON) in Portland, Ore. Also at the conference Wednesday, Sun will ship Sun OpenSSO Express, which is a version of Sun's OpenSSO (single sign-on) software featuring enterprise support and indemnification. Sun and Joyent at OSCON will announce a social application program featuring free Web-hosting.

Sun Web Stack provides software needed for deploying Web applications and Web sites, said Ken Drachnik, Sun open source community development and marketing manager. With Sun Web Stack, users have the option of deploying the "AMP" portion of the LAMP stack with either Sun's Solaris OS or Linux, Windows or other operating systems.

"Up till now, [the stack] has been a developer offering from Sun, not a fully supported enterprise offering," Drachnik said.

Web Stack consists of Web and proxy servers, database and scripting languages, and the Apache HTTP Web server version 2.2.8. Featured components include the Apache Modules Memcached 1.2.5 distributed memory object system, the MySQL 5.1 database, lightpdd Web server v 1.4.18 and Tomcat Servlet engine 6.0.16. Versions of the Ruby, Perl, PHP, Ruby on Rails, and RubyGems development platforms are featured as well.

Also included is the Mongrel 1.0.1 HTTP library and server for Ruby, the fcgi package providing FastCGI capabilities, RedCloth text parsing, and the Squid proxy server 2.16.x

Sun will provide product control for the supported stack across multiple operating environments enabling applications to redeployed to another operating system with minimal changes.

Support for Solaris is planned for this quarter while Linux backing is due next quarter. Other OSes will be supported afterward, including Windows later in the year.

Sun also said it is open-sourcing core components of Sun Java System Web Server 7.0 and Sun Java System Web Proxy technologies under a Berkeley Software Distribution license. These technologies are part of the Web Stack sub-project in the open-source OpenSolaris community, Sun said. The open-source moves enable developers to achieve faster time to market with their applications, the company said.

"With the open sourcing of our Web server and our proxy server, we've now pretty much open sourced most of the entire middleware stack from Sun," Drachnik said.