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  • Apache Drop-In Replacement - LiteSpeed Technologies Inc
    time in Apache to switch right Wrong LiteSpeed Web Server is Apache compatible LSWS has been designed to read and run off Apache s httpd conf and htaccess files This means there s no configuration necessary when you switch to LiteSpeed It uses the Apache settings you already have and works with your applications out of the box including hosting control panels written for Apache Faster more stable servers in 15 minutes LSWS can be installed and switched with Apache in less than 15 minutes with no downtime Once installed LiteSpeed Web Server takes your Apache settings and processes them with its event driven architecture allowing for lightning fast responses and consistent efficient memory usage You re only one installation script from increasing your performance and saving money on hardware and support The only control panel integrated solution Control panel plugins for WHM Plesk and DirectAdmin make installation even easier allowing you to install register and switch to LiteSpeed Web Server all using the interface you re used to Nginx can t claim that cPanel users can even install and set up LSWS with one simple script For other users step by step walkthroughs for switching from Apache are available

    Original URL path: https://www.litespeedtech.com/products/litespeed-web-server/features/apache-drop-in-replacement (2016-04-24)
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  • Event-Driven Architecture - LiteSpeed Technologies Inc
    that pop up new requests coming in and new dynamic responses ready to go out LiteSpeed Web Server concerns itself not with creating new processes to handle every aspect of every connection but with reacting to events that occur For static content like images CSS html the advantage is obvious instead of consuming the overhead required for a new process for each request LSWS s one process just handles the requests as they come in This is much faster and consumes much less CPU and memory than Apache For web applications like PHP and database processes like My SQL the interaction is a little more complex LSWS fields requests and sends them along to external processes that create responses LSWS does not wait around for these dynamic responses but instead gets to work fielding more requests requests for static content which it retrieves and requests for dynamic content which it forwards on while the initial requests are getting processed When a response is ready LSWS gets a callback a new event to react to and knows to send that response back to the requesting client In addition LSAPI LiteSpeed s server API keeps control over the number of processes that get created for web applications reusing processes instead of creating new processes further increasing CPU and memory efficiency Fielding all these requests and responses with one or a few processes is far more CPU and memory efficient than trying to create a separate process for each connection When you get tens of thousands of concurrent connections an event driven server s CPU and memory usage do rise but not exponentially like Apache This also allows for faster content delivery because the server skips the overhead of creating new processes and has more memory left for handling database and external applications

    Original URL path: https://www.litespeedtech.com/products/litespeed-web-server/features/event-driven-architecture (2016-04-24)
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  • Built-In Security Features - LiteSpeed Technologies Inc
    Web Server supported with Atomic Secured Linux and the Atomicorp Realtime ModSecurity Rules External Application Resource Control With LiteSpeed you can set caps on external application resource usage preventing DoS attacks like forkbombs that target your applications Deny Buffer Overrun Attempts LiteSpeed Web Server s compiler detects buffer overrun attempts and terminates the application instead of allowing code to be injected into headers LSWS can achieve results similar to CageFS without CloudLinux through external application chroot or running all of LSWS from a chroot jail though this requires individual configuration for each user More secure shared hosting CloudLinux CageFS Compatibility LiteSpeed and CloudLinux share a strong partnership and LSWS is fully compatible with CageFS allowing administrators to keep users safely separated from each other even if one site is hacked it won t be able to access other users files Turn Off CGI Completely CGI scripts can be a large vulnerability especially for shared hosts LiteSpeed s unique DisableCgiOverride directive allows you to turn off CGI and make sure your users don t turn it back on using the Options directive security Apache and nginx don t offer Restrain Virtual Hosts LiteSpeed s Restrained setting stops sites from accessing files outside of their own virtual host root Control Symlinks Symbolic link settings let you to disable symlinks altogether allow them only when they connect to files with the same owner or make sure they are checked against access denied lists Be Strict About Ownership Our strict ownership checking can make sure that any file accessed is owned by the owner of the virtual host whether accessed via symlink or not Control what files are served Request Checking is not allowed in a decoded URL blocking outsiders from seeing hidden files like htaccess files Restrict by Permission Mask Server wide settings

    Original URL path: https://www.litespeedtech.com/products/litespeed-web-server/features/built-in-security-features (2016-04-24)
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  • Features - LiteSpeed Technologies Inc
    Unrivaled PHP suEXEC performance for shared hosting Three different PHP suEXEC setups for different needs and abilities Static content up to 5x faster than Apache Dynamic content up to 40x faster than Apache HTTPS 3x faster than Apache OCSP stapling Built in page caching Turbocharge Magento and other web applications with ESI support Advanced htaccess caching removes performance bottlenecks associated with htaccess use in Apache CloudLinux LVE compatibility Increases scalability of web applications Separation of server and web applications allows for buffering of requests and responses leading to better handling of multiple connections Just in time configuration cuts restart time CPU affinity allows for greater use of CPU cache High Availability Apply changes with zero downtime Zero downtime server software upgrade Recovers from service failure instantly Apache Compatibility Reads Apache s configuration files directly Drop in Apache replacement for cPanel Plesk DirectAdmin Interworx etc Full htaccess support Compatible with Apache core modules Security Built in anti DDoS connection and bandwidth throttling mod security compatibility Compatibility with Atomic Secured Linux and Atomicorp Realtime ModSecurity Rules Anti SSL BEAST and renegotiation attack capabilities Strict HTTP request validation Denies buffer overrun attempts PHP Ruby CGI FCGI LSAPI suEXEC CloudLinux CageFS compatibility External application

    Original URL path: https://www.litespeedtech.com/products/litespeed-web-server/features (2016-04-24)
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  • PHP Hello World - LiteSpeed Technologies Inc
    203 faster than Apache 2 4 with PHP FPM 86 faster than nginx with PHP FPM 16 faster than LiteSpeed Enterprise with PHP FPM slightly faster than OpenLiteSpeed In both tests LiteSpeed Enterprise returned essentially the same results with suEXEC daemon mode and ProcessGroup It should also be noted that even using the same PHP FPM backend LiteSpeed Enterprise outperformed all participants not using LSAPI This is due to its optimized coding Notes We used a simple PHP hello world script 13 bytes We used such a tiny script to avoid saturating the network connection and to show raw speed differences between the different setups Part of the difference in speeds is due to different server APIs OpenLiteSpeed and LiteSpeed Enterprise with ProcessGroup and suEXEC daemon mode all used LSAPI PHP FPM uses FCGI suPHP uses CGI mod PHP is embedded in the web server Opcode caching was not used for any of these setups With opcode caching differences would have been more marked Fast setups would have shown an even larger advantage over slower setups LiteSpeed s suEXEC daemon and ProcessGroup modes returned the same results in these tests In the real world though they have different advantages and uses Each has situations where it would be preferable over the other For more information on this see our PHP LSAPI documentation The benchmark simulated serving 50000 requests to 100 users Access logging was disabled for all web servers to minimize disk I O The test was performed over a 10GBps network connection to make sure network bandwidth did not become a bottleneck As the server CPU was faster than the client machine CPU the test client ab could have become a bottleneck before the server reached its peak performance We thus created an OpenVZ container on the server and

    Original URL path: https://www.litespeedtech.com/products/litespeed-web-server/benchmarks/php-hello-world (2016-04-24)
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  • Editions - LiteSpeed Technologies Inc
    control panel compatible Apache compatible Limited to 5 Apache virtual hosts 1 worker process 150 concurrent connection limit Use with hosting control panel plugins not supported Free for personal and commercial uses Download Now LSWS Enterprise Large high traffic sites Hosting control panel compatible Fully Apache compatible Supported by cPanel and integrated into DirectAdmin Highest level of stability Ideal for shared hosting providers Number of worker processes based on license Page caching available What License to Choose Order Now LiteSpeed Tech professional staff provide free support to LSWS customers through our forum and free support to OpenLiteSpeed community through our Google Group Detailed feature comparison Open Standard Enterprise Basic Features HTTP 1 0 1 1 compliant HTTP 2 support Languages PHP Perl Ruby Python JSP etc SAPIs LiteSpeed API CGI FCGI AJPv13 Proxy HTTPS IPv4 and IPv6 Unlimited IP and name based virtual hosting GZIP compression SPDY2 3 WebSocket Runs on Linux FreeBSD MacOSX Solaris Apache Compatibility Apache mod rewrite rules Apache mod security rules Reads Apache s configuration files directly Hosting control panel compatible 5 Apache VHosts Full htaccess support Performance Scalability Event Driven Architecture Concurrent connections Unlimited Restricted to 150 Unlimited Tiny memory footprint Sendfile LiteSpeed s exclusive server API LSAPI Separation of server and web applications SPDY support Advanced htaccess caching Built in page caching ESI support Asynchronous I O support CloudLinux compatibility Security Anti DDoS connection and bandwidth throttling Anti SSL BEAST and negotiation attack capabilities Strict HTTP request validation Denies buffer overrun attempts PHP Ruby CGI FCGI LSAPI suEXEC mod security compatibility SSL client verification SSL hardware acceleration CloudLinux CageFS compatibility chroot ability High Availability Apply changes with zero downtime Zero downtime server software upgrade Recovers from service failure instantly Ease of Use Intuitive WebAdmin console GUI Virtual host templates for easy configuration Real time

    Original URL path: https://www.litespeedtech.com/products/litespeed-web-server/editions (2016-04-24)
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  • Download - LiteSpeed Technologies Inc
    You are welcome to try the new features available in these builds on non mission critical servers Please visit our release log for a list of changes in this version Platform Version Release Date Download Stable Release Version 5 0 16 Linux x86 5 0 16 Ent 4 20 2016 Version 5 0 16 Linux x86 64 5 0 16 Ent 4 20 2016 Version 5 0 16 FreeBSD 8 x x86 5 0 16 Ent 4 20 2016 Version 5 0 16 FreeBSD 8 x x86 64 5 0 16 Ent 4 20 2016 5 1 Release Version 5 1 4 Linux x86 5 1 4 Ent 3 1 2016 Version 5 1 4 Linux x86 64 5 1 4 Ent 3 1 2016 Version 5 1 4 FreeBSD 8 x x86 5 1 4 Ent 3 1 2016 Version 5 1 4 FreeBSD 8 x x86 64 5 1 4 Ent 3 1 2016 Legacy Release Linux x86 4 2 24 Ent 7 9 2015 Linux x86 64 4 2 24 Ent 7 9 2015 FreeBSD 4 5 x86 4 2 24 Ent 7 9 2015 FreeBSD 6 x x86 4 2 24 Ent 7 9 2015 FreeBSD 6 x x86 64 4 2 24 Ent 7 9 2015 Mac OSX Intel 4 2 24 Ent 7 9 2015 Solaris x86 4 2 24 Ent 7 9 2015 Solaris x86 64 4 2 24 Ent 7 9 2015 LiteSpeed Web Server Standard Edition LiteSpeed Web Server Standard Edition is free for both private and commercial use Please visit our release log for a list of changes in this version Platform Version Release Date Download Stable Release Version 5 0 16 Linux x86 5 0 16 Std 4 20 2016 Version 5 0 16 FreeBSD 8 x x86 5

    Original URL path: https://www.litespeedtech.com/products/litespeed-web-server/download (2016-04-24)
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  • Release Log - LiteSpeed Technologies Inc
    HTTP Range request processing Added a SIGBUS signal handler to catch and fail affected requests gracefully LSWS 5 0 2 7 9 2015 Feature improvements and bug fixes Updated OpenSSL to 1 0 2d to address CVE 2015 1793 Improved HTTP 2 implemenation Improved mod security engine to work better with OWASP core rule set Improved compatibility with Plesk 12 control panel Fixed a bug in Rewrite engine that may trigger 503 errors by cPanel autoconfig autodiscover feature LSWS 4 2 24 7 9 2015 Feature improvements and bug fixes Updated OpenSSL to 1 0 1p to address CVE 2015 1793 Improved mod security engine to work better with OWASP core rule set Improved compatibility with Plesk 12 control panel Fixed a bug in Rewrite engine that may trigger 503 errors by cPanel autoconfig autodiscover feature LSWS 5 0 1 6 26 2015 Feature improvements and bug fixes Added PHP7 support for PHP suEXEC Updated OpenSSL to 1 0 2c Fixed various HTTP 2 and SPDY related bugs Fixed various broken internal features internal redirect CloudLinux LVE cache handler etc Fixed a few LiteMage related issues LSWS 5 0 4 17 2015 Major feature enhancements HTTP 2 support SPDY 2 3 and 3 1 support ESI and LiteMage Cache support Virtual host level bandwidth throttling with mod bw compatibility WebSocket proxy functionality CPU Affinity setting Extra build numbers added onto version numbers and supported through lsup command LSWS 4 2 23 4 17 2015 Feature improvements and bug fixes New Feature Added support for Apache directive Allow Deny env env variable Improvement mod security audit logging can log request body now Bug Fix Changes in SSL renegotiation protection broke HTTPS proxy backend Bug Fix Autoindex script used wrong encoding for character in directory name LSWS 4 2 22 3 17 2015 Feature improvements and bug fixes Improvement Added option to select default DH Key size to avoid SSL handshake error with older Java clients Improvement Apache configuration compatibility with SuexecUserGroup and SSLInsecureRenegotiation directives Improvement Avoid parsing bad shtml files that can cause server memory problem Bug Fix DirectoryMatch causes PHP suEXEC malfunction Bug Fix Slow memory leak in mod security engine Bug Fix Crash caused by long variable value in mod security engine Other minor improvements and bug fixes LSWS 5 0 RC3 3 11 2015 HTTP 2 support feature improvements and bug fixes Added HTTP 2 draft 14 17 implementation ESI engine and LSCache improved to better support partial page caching Fixed a bug in bandwidth throttling All improvements and bugs fixed in 4 2 15 4 2 21 releases LSWS 4 2 21 1 15 2015 Feature improvement and bug fixes Improved DirectAdmin compatibility added ability to change user ID inside context of Apache configuration Fixed bugs in Server Side Include engine Fixed a bug causing Apache Header directive to not work properly when used inside a directive Fixed a bug in HTTP authentication using Apache htpasswd generated password hash Fixed a bug in handling MIME type strings with upper case letters Fixed a bug in AIO logging causing an infinity loop Fixed a bug in Aho Corasick string search implementation LSWS 4 2 20 12 19 2014 Feature improvement and bug fixes New feature Automatically redirect to HTTPS if a HTTPS port is accessed as HTTP Fixed a bug in Apache configuration parsing that disables mod security engine Fixed Apache httpd wrapper script bug that causes problem with cPanel 11 46 mod security Tools Fixed a bug that creates swap directory with wrong permission mask Fixed a bug that causes trouble for serving cached gzipped content to Facebook Crawler LSWS 4 2 19 11 12 2014 Improvements for high I O wait and bug fixes New features to improve server performance when I O wait is high asynchronous logging mode and start external process in asynchronous mode through CGI daemon Improved mod security engine to allow using variables in depricatevar and expirevar actions Fixed a bug in HTTPS proxy that causes 503 errors Fixed a bug that causes GZIP compression not to be used for certain dynamic pages Fixed a bug in parsing CacheEnable CacheDisable directives LSWS 4 2 18 10 15 2014 Security update and minor improvements and bug fixes Upgraded OpenSSL to 1 0 1j to address vulnerabilities in 1 0 1i SSLv3 turned off by default for HTTPS virtual hosts Improved bandwidth logging by combining write system calls Improved autoindexing script Fixed systemd unit description script Fixed minor bug in mod security engine LSWS 4 2 17 10 3 2014 Bug fixes Added more CGI environment variables for SSL Client authentication Fixed a bug that breaks Require user user1 user2 Apache directive Fixed a bug causing 403 error for Server Side Include pages Fixed a bug causing issues when one user misses a limit tag in one htaccess file Fixed a bug causing Smart Keep Alive feature to not work for js files with MIME type application javascript Fixed a bug in MP4 random seek Removed an OpenSSL patch which broke SSL handshake with some clients LSWS 4 2 16 9 25 2014 Security patch Addresses Shellshock Bash vulnerability CVE 2014 6271 and CVE 2014 7169 LSWS 5 0 RC2 9 23 2014 Virtual host level bandwidth throttling improved stability and bug fixes Added virtual host level bandwidth throttling Improved stability of ESI and SPDY implementation Fixed a bug that turns off gzip compression for FireFox when SPDY is in use All bugs fixed in 4 2 8 4 2 15 releases LSWS 4 2 15 9 23 2014 Improved efficiency and bug fixes Improved Apache configuration parsing speed and memory efficiency Default SSL cipher list has been tuned to score an A on online SSL tests Added suffix php6 to available PHP suEXEC suffixes Fixed a bug in OCSP stapling result verification Fixed a bug in HTTP range request handling Minor bug fixes and fine tunings LSWS 4 2 14 8 6 2014 Bug fix Improvement Added support for Apache mod env and

    Original URL path: https://www.litespeedtech.com/products/litespeed-web-server/release-log (2016-04-24)
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