Java HotSpot VM Options. Please note that this page only applies to JDK 7 and earlier releases. For JDK 8 please see the Windows, Solaris, Linux and Mac OS X reference pages. This document provides information on typical command-line options and environment variables that can affect the performance characteristics of the Java HotSpot Virtual Machine.
Unless otherwise noted, all information in this document pertains to both the Java HotSpot Client VM and the Java HotSpot Server VM. Categories of Java HotSpot VM Options Standard options recognized by the Java HotSpot VM are described on the Java Application Launcher reference pages for Windows and Solaris & Linux. This document deals exclusively with non-standard options recognized by the Java HotSpot VM: Options that begin with -X are non-standard (not guaranteed to be supported on all VM implementations), and are subject to change without notice in subsequent releases of the JDK. Some Useful -XX Options The options below are loosely grouped into categories.
Java Servlet Technology. Servlets are the Java platform technology of choice for extending and enhancing Web servers. Servlets provide a component-based, platform-independent method for building Web-based applications, without the performance limitations of CGI programs. And unlike proprietary server extension mechanisms (such as the Netscape Server API or Apache modules), servlets are server- and platform-independent. This leaves you free to select a "best of breed" strategy for your servers, platforms, and tools. Servlets have access to the entire family of Java APIs, including the JDBC API to access enterprise databases. Today servlets are a popular choice for building interactive Web applications. You might want to check out the latest information on JavaServer Pages (JSP) technology.
Java Servlet Technology - Implementations & Specifications. Sun GlassFish Enterprise Server - Overview. Oracle acquired Sun Microsystems in 2010, and since that time Oracle's hardware and software engineers have worked side-by-side to build fully integrated systems and optimized solutions designed to achieve performance levels that are unmatched in the industry. Early examples include the Oracle Exadata Database Machine X2-8, and the first Oracle Exalogic Elastic Cloud, both introduced in late 2010. During 2011, Oracle introduced the SPARC SuperCluster T4-4, a general-purpose, engineered system with Oracle Solaris that delivered record-breaking performance on a series of enterprise benchmarks. Oracle's SPARC-based systems are some of the most scalable, reliable, and secure products available today. Sun's prized software portfolio has continued to develop as well, with new releases of Oracle Solaris, MySQL, and the recent introduction of Java 7.
Oracle invests in innovation by designing hardware and software systems that are engineered to work together. Sun GlassFish Enterprise Server - Get It. Apache Tomcat - Apache Tomcat 6 Downloads. Welcome to the Tomcat 6.x download page. This page provides download links for obtaining the latest version of Tomcat 6.0.x, as well as links to the archives of older releases. You must verify the integrity of the downloaded files. We provide OpenPGP signatures for every release file.
This signature should be matched against the KEYS file which contains the OpenPGP keys of Tomcat's Release Managers. We also provide an MD5 checksum for every release file. After you download the file, you should calculate a checksum for your download, and make sure it is the same as ours. You are currently using Please see the README file for packaging information.
Source Code Distributions. Apache Tomcat 6.0 - Introduction. Apache Tomcat - Apache Tomcat 6 Downloads. Welcome to the Tomcat 6.x download page. This page provides download links for obtaining the latest version of Tomcat 6.0.x, as well as links to the archives of older releases. You must verify the integrity of the downloaded files. We provide OpenPGP signatures for every release file. This signature should be matched against the KEYS file which contains the OpenPGP keys of Tomcat's Release Managers. We also provide an MD5 checksum for every release file. After you download the file, you should calculate a checksum for your download, and make sure it is the same as ours. You are currently using Please see the README file for packaging information. Source Code Distributions. Apache Tomcat 6.0 - Documentation Index. Apache Tomcat - Apache Tomcat 6 Downloads. Welcome to the Tomcat 6.x download page. This page provides download links for obtaining the latest version of Tomcat 6.0.x, as well as links to the archives of older releases.
You must verify the integrity of the downloaded files. We provide OpenPGP signatures for every release file. This signature should be matched against the KEYS file which contains the OpenPGP keys of Tomcat's Release Managers. We also provide an MD5 checksum for every release file. After you download the file, you should calculate a checksum for your download, and make sure it is the same as ours. You are currently using Please see the README file for packaging information. Source Code Distributions. Tomcat - Shutdown port. On a new installation of Tomcat (default config files), you'll notice that your server.xml file is set up with a shutdown port of 8005, and shutdown="SHUTDOWN".
What does this mean? It means that anyone who contacts the server locally on port 8005 and send it the words SHUTDOWN can cause Tomcat to close out all its web applications and shut down cleanly. Yikes - is this a security hole of what? It could be. Fortunatly , you'll notice that I said it's a LOCAL connection to the port that causes a shutdown, so it no-one can ssh or telnet in, nor log in from the keyboard unless they're an admin, it might not be a problem .... If your Tomcat server allows anyone except the administrator to log in with a shell, then I strongly suggest you change shutdown="SHUTDOWN" to shutdown="waSS-I41tis" so that at least it won't be a string that any hacker can guess. WaSS-I41tis => "what a STUPID SYSTEM - I for one think it's silly" (written 2006-08-18) Some other Articles.
Instructions pour l'installation de Linux x64 RPM. Judiciary boosting security after website hacked. Koshy@thestar.com.my KUALA LUMPUR: The Judiciary will be upgrading the security of its court computer systems, following a hacking and defacing of its website last Thursday. Security has become crucial with the introduction of e-filing and the online management of court documents last year. According to court sources, the Malaysian Communications and Multimedia Commission (SKMM) had alerted the judiciary to the hacking Thursday night after which the site was taken down. The hacker, who used the handle “Brainwash,” had issued a threat not to pursue with the matter of the Catholic Church using the word “Allah” in the Bahasa Malaysia publication of its weekly Herald.
The hacker had also written: “Allah only restricted to muslim only. Dont touch us as we dont touch you. Unless.....” Asked whether a police report had been lodged, the sources said yes, adding the SKMM was also conducting investigations. Related story:Judiciary website hacked over ‘Allah’ issue. Patent troll. Un article de Wikipédia, l'encyclopédie libre. Un patent troll, (en français « chasseur de brevets » ou « troll des brevets »[1]) est, dans le domaine de la propriété intellectuelle, et plus précisément dans celui de la concession de licences (Licensing), le nom donné à une société ou à une personne physique, qui utilise la concession de licence et le litige de brevets comme principale activité économique.
Cette notion fait aujourd'hui l'objet de nombreux articles universitaires, ce qui s'accompagne d'un usage de plus en plus fréquent par les cours de justice[2]. Étymologie[modifier | modifier le code] La dénomination patent troll a été utilisée dès 1993 pour décrire les entreprises qui intentent de multiples procès pour violation de brevet[3]. L'expression a été popularisée par Peter Detkin en 2001 lorsqu'il travaillait pour Intel[4]. Activité[modifier | modifier le code] pour ses détracteurs[modifier | modifier le code] pour ses défenseurs[modifier | modifier le code] Tomcat Configuration Reference - The HTTP Connector. Memento TOMCAT. Sommaire Généralités, ressources. Implantation et conditions de fonctionnement Pêle-mêle installation et configuration Détails d'installation de Tomcat sous Linux Premiers tests Administration Généralités, ressources.
Web Service : application utilisable via un réseau du type Internet. Voir : et Implantation et conditions de fonctionnement Par défaut Tomcat démarre sur le port 8080 ( /bin Scripts de démarrage, arrêt et autres. /common/lib Contient les bibliotèques ("jar") utilisées par Tomcat pour toute Webapp. /common/classes Contient les programmes ("class") qui ne sont pas dans un "jar". /conf Fichiers de configuration et DTD, notamment le fichier server.xml /logs Fichiers journaux (accès et erreurs) /webapps Emplacement où mettre les applications Sous /webapps on range les applications ; Tomcat 5 fournit une application ROOT avec une documentation et des exemples. Pêle-mêle installation et configuration Premiers tests JSP simple <!
HowTo/FasterStartUp. This section provides several recommendations on how to make your web application and Apache Tomcat as a whole to start up faster. Before we continue to specific tips and tricks, the general advice is that if Tomcat hangs or is not responsive, you have to perform diagnostics. That is to take several thread dumps to see what Tomcat is really doing. See Troubleshooting and Diagnostics page for details. JAR scanning The Servlet 3.0 specification (chapter 8) introduced support for several "plugability features". Those exist to simplify a structure of a web application and to simplify plugging of additional frameworks.
For further talk, the features that require scanning are: Introduced by Servlet 3.0: SCI (javax.servlet.ServletContainerInitializer) Web fragments (META-INF/web-fragment.xml) Resources of a web application bundled in jar files (META-INF/resources/*) Annotations that define components of a web application (@WebServlet etc.)
Older features, introduced by earlier specifications: Other. Fronting Tomcat with Apache HTTPD to Remove Ports and Context Pa. In this How-To guide, I show a combination of software and configuration to clean up URLs by removing the port numbers of the Java servlet engine (Tomcat) and the context path of the application. The goal is to create “cool URLs” that are are short (removing the unnecessary context path) and follow conventions (using the default port “80″ rather than “8080″). OhioLINK also uses a custom access control module — built for Apache HTTPD — which makes the fronting of Apache HTTPD for Tomcat even more desirable.
Requirement We’re making use of the latest line of development for the Apache HTTPD series: version 2.2.x. The inclusion of mod_proxy_ajp — replacing the custom “mod_jk” with a module that extends the httpd proxy engine — in the latest major release of HTTPD makes our task much easier. This solution also uses HTTPD’s mod_rewrite and an add-on module called mod_proxy_html. The Plan There are two overall tasks that we’re going to ask the HTTPD server to do. Preparations The Configuration. Tomcat 6.0 - Realm Configuration HOW-TO.