LiteSpeed Web Server

LiteSpeed Web Server is the leading high-performance, high-scalability web server. It is completely Apache interchangeable so LiteSpeed Web Server can quickly replace a major bottleneck in your existing web delivery platform. With its comprehensive range of features and easy-to-use web administration console, LiteSpeed Web Server can help you conquer the challenges of deploying an effective web serving architecture. LiteSpeed Web Server has superior performance in terms of both raw speed and scalability. Our benchmarks demonstrate that it is more than 6 times faster than Apache. When serving static content, LiteSpeed surpasses well-respected content accelerators including thttpd, boa and TUX.

What is new in this release:

• Added just in time Apache vhost configuration to improve server startup speed.
• Major improvements and bug fixes and in mod_security engine: added more transform functions, better variable collection handling, added IP match operators, added MATCHED_VARS support.
• Added new PHP suEXEC WorkerGroup mode to create per-account worker groups using the LiteSpeed-specific Apache-style directives "LSPHP_ProcessGroup" and "LSPHP_Workers". It is PHP selector-compatible and opcode caching friendly.
• Improved CloundLinux compatibility -- return 508 error page when resource limit has been reached.
• Rack/Rails: added per-application environment configurations for Rack/Rails context to better support RVM gemset setup.
• Bundled OpenSSL library has been upgraded to 1.0.1e with support for TLSv1.1 & TLSv1.2 ciphers.
• Automatically detect and skip very large .htaccess file that can stall server processes.
• Enabled skipping "File Not Found" logging in error log via rewrite environment variable "dontlog".
• Added support for "Charset" in Content-Type header for autoindex pages.
• Fixed bug in handling symbolic race condition when "Strict File Ownership" (equivalent to CloudLinux SecureLink) is enabled. (Special thanks to Rack911.)
• Fixed bug allowing create/overwrite arbitrary file as root user via crafted symbolic link. (Special thanks to Rack911.)
• Fixed bug in handling IPv6 address used in Apache httpd.conf.
• Fixed bug in SSI engine causing LAST_MODIFIED variable to use wrong timestamp.
• Fixed bug in rewrite engine with URL encoding.