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If you have expensive computer systems running in your data center, you want to make sure they keep running smoothly. Server vendors have addressed this by adding system monitoring devices to motherboards to report on temperatures, fan speeds, and voltages.

The standard way to monitor these parameters has traditionally been with tools such as lm_sensors on systems running Linux. However, this mechanism is far from perfect. For starters, it can be incredibly difficult to configure lm_sensors correctly because of poor documentation...

To test your website before DNS propagation has completed you can edit the HOSTS file on your local computer. Your computer will use the entries in your HOSTS file before it looks up the current information in DNS. This walkthrough will explain how to edit the HOSTS file on Windows 98/Me/2000/XP/2003/Vista computers as well as on Apple Mac OS 9 and OS X machines.

Typical Unix users cringe at the thought of putting spaces in file names. Mac users, on the other hand, frequently put spaces in file names because it's natural and may read better. This means that Mac OS X Unix geeks need to make sure their shell commands (and shell scripts) work correctly when faced with spaces in file names. Below is outlined a few simple ways to properly deal with this...

Zattoo has developed a software program that allows you to watch TV on your computer. All you need is a broadband connection and a current operating system (Windows XP or Vista, Mac OS X, or Linux). The service is legal and free of charge.

Unison is a file-synchronization tool for Unix and Windows. It allows two replicas of a collection of files and directories to be stored on different hosts (or different disks on the same host), modified separately, and then brought up to date by propagating the changes in each replica to the other.

If you are a developer you need C and C++ Compiler for your development work on your ubuntu system this tutorial will explain howto install C and C++ Compilers in Ubuntu with program examples.In ubuntu you can install the build-essential for C and C++ compilers.

PostgreSQL is a powerful, open source relational database system. It has more than 15 years of active development and a proven architecture that has earned it a strong reputation for reliability, data integrity, and correctness.

The openssl application that ships with the OpenSSL libraries can perform a wide range of crypto operations. This HOWTO provides some cookbook-style recipes for using it.

SQL*Plus is a command line SQL and PL/SQL language interface and reporting tool that ships with the Oracle Database Client and Server software. It can be used interactively or driven from scripts. SQL*Plus is frequently used by DBAs and Developers to interact with the Oracle database.

Programming a UNIX® system can be fun as well as educational. With the UNIX strace tool and GDB, the GNU Project Debugger, you can really dig deep into the functionality of your system and learn a lot about the various programs that comprise it. Using both tools in concert can be a rewarding experience as you look under the hood of your UNIX machine.