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Table of Contents [show]     1 Hardware     2 XML     3 SSH     4 Database     5 Operating system     6 System Management     7 Programming     8 Networking     9 Web Service     10 LDAP     11 Domain     12 Streaming Media     13 UI Tools     14 Testing     15 Misc       15.1 Drupal       15.2 DotProject       15.3 vmware       15.4 IPC       15.5 phpBB     16 Computer-Related Random Notes Copyright Information All rights reserved by the author of this article. Contact webmasters for more information on copyright issues. 1 Hardware Solid State Drives A solid state drive is a hard-drive that uses solid state physics instead of relying on electromechanical moving parts like most current harddrives do. For example, there are solid drives based on flash, DRAM, SRAM, etc. RAM based solid state drives are also called RAM-disks, and use internal battery to ensure data persistence. Flash drives are less expensive, however, they are also slower than RAM-disks. Because solid state drive doesn't require moving parts, they are quiet, more durable, and of course faster. However, they are also more expensive and have a lower storage density. ...[more] 2 XML XML: eXtensible Markup Language SOAP ...[more] 3 SSH Introduction SSH is short for Secure SHell. It is "a program to log into another computer over a network, to execute commands in a remote machine, and to move files from one machine to another. It provides strong authentication and secure communications over unsecure channels. SSH was designed to replace rlogin, rsh, and rcp where security is critical. Ssh also provides secure X connections and secure forwarding of arbitrary TCP connections. SSH is open, free, fast, and secure. It's also easy to setup one you have your hands on it. Setting up SSH identities Follow these steps to setup your SSH identity on a remote server create ssh identity key pair: ssh-keygen -t rsa Enter file in which to save the key (/home/yourname/.ssh/id_rsa): ...[more] 4 Database SQL DBMS Systems DBMS is short for DataBase Management System, which serves as the engine behind a database system. MySQL PostgreSQL HSQL DB Oracle SQL Server Sqlite Object-Relations Mapping Almost all major database systems today are relational database systems: data are organized into two-dimensional tables containing multiple records, with each record composed of multiple properties. The programming paradigm, however, are leaning towards object-oriented programming. Object-Relational mapping tools, or OR Mapping tools, are designed to bridge this gap between the programming paradigm and the database paradigm. Hibernate ...[more] 5 Operating system Windows Linux Mac ...[more] 6 System Management Server Maintenance Journal ...[more] 7 Programming Concepts Programming Language Theory Procedural Programming OOP AOP SOP Languages C ASP C# ColdFusion Java JavaScript PHP Perl Python Objective-C Tools Make Perforce Bugzilla CVS Git Eclipse Xcode ReviewBoard Software development process Extreme programming Links Code Search Websites ...[more] 8 Networking Wireless Ad Hoc Network A wireless ad hoc network doesn't require special routing devices, switches, or hubs. Nodes in the network connects voluntarily with each other thru wireless connection, and each acting as different roles. ...[more] 9 Web Service Axis Tools Apache ...[more] 10 LDAP LDAP, or Lightweight Directory Access Protocol, is an Internet protocol used by client programs to query information from servers. For example, an email client may use LDAP to query email addresses where LDAP server works as an address book organizer. Or a secure client may use LDAP to query public keys where LDAP server works as a security service. One key thing in understanding LDAP is that LDAP only defines a protocol for communication between client and server. It doesnot require any specific techniques on either the client side or the server side. Or, in other words, LDAP only defines the language between a client and an LDAP server. For example, the server could use database or even plain text query as long as it supports LDAP language to talk to clients. ...[more] 11 Domain ...[more] 12 Streaming Media ...[more] 13 UI Tools Ajax: a pure web interface Flex: a rich web-based UI technology Dot NET Java Swing Qt ...[more] 14 Testing Whitebox vs blackbox testing Whitebox testing tests a program against what the soure code intends to do, while blackbox testing tests a program against its spec. Blackbox testing doesn't care about how a program is implemented, it only cares about if the program does what it's intended to do. . What is a triage meeting? Triage is originally a medical term. During a triage process, patients are separated into three groups: those who will die anyway, those who will recover anyway, and those who will recover if aided. Apparently doctors should focus on the third group. Similarly, in software testing, there is a similar triage meeting that separate all bugs into three groups. Triage is pronounced as tri(ple)(gar)'age, with tri- pronouced as in triple, and -age pronounced as...[more] 15 Misc 15.1 Drupal How do I enable content version control in drupal? First, you have to have a role with "version control" priorities. To figure out roles and priorities, login as admin user (the first account you created) and check out administrator->access control. Fine tune a priority group named "node control". If you have "revert revisions" and "view revisios" enabled, and if you check "create new version" when you edit an article, then you'll see revisions. Drupal vs WorkPress ...[more] 15.2 DotProject Setting up DotProject Start off from a Redhat linux system Use yum to check if the following modules have been installed, if not install them: mysql, mysql-server, php-mysql, php, php-gd, httpd Search the web for dotproject tarball, download it, and extract it to /var/www/ Update /etc/httpd/conf/httpd.conf and point DocumentRoot to /var/www/dotproject. If you are hosting multiple websites, set up accordingly Update /etc/php.ini, set session.auto_start 1 Visit http://yoursite/, and proceed as prompted: check and update necessary settings, create database, and finally login with credentials admin/passwd How to dynamically adjust parent task dates when adjusting child tasks? Make the parent task "dynamic". ...[more] 15.3 vmware How do I expand the size of a vmware virtual disk? , or use vmware-vdiskmanager shipped with vmware workstation How do I change linux screen resolution? Install tools, and then run vmware-config-tools.pl VMotion: Unable to migrate, the VMotion interface is not configured The option is somewhat buried in the config dialogs. It's in -> Host configuration / Networking -> Properties of the vSwitch that has the VMKernel port attached to it -> Select VMKernel from the port list and click Edit... What are the .sf files under my /vmfs/storage/? These are VMFS system files. automatically start VMs when esx box reboots In VI Client, click on the ESX host and go to the "Configuration" tab. In the "Software" section, g...[more] 15.4 IPC Pipes You could use either anonymous pipes or named pipes CORBA Common Object Request Broker Architecture (CORBA) D-Bus Freedesktop.org's D-Bus DCE Distributed Computing Environment (DCE) MBUS Message Bus (MBUS) (specified in RFC 3259) ONC RPC ONC RPC Sockets Sockets XML RPC XML XML-RPC or SOAP TIPC TIPC ICE ZeroC's Internet Communications Engine (ICE) VMOMI VMware object model interface ...[more] 15.5 phpBB How do I install new styles? Download style from , copy it to your styles directory. Login as admin user, click "Admin web site" at the bottom, look for styles tab, locate the newly downloaded style, and install it. If you want to use the new style for all your forums, make it your default style, and deactivate your original style. ...[more] 16 Computer-Related Random Notes No summary: password protected, click to see full article Comments Webster Unabridged Com*put"er (-pūt"&etilde;r), n. One who computes. 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