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IP based applications and services use “port” assignments to determine the logical end-points of connections for the purpose of long term communications. Ports can utilize both the TCP and UDP...
Having Brute Force attack prevention (BFD) is a must have in my opinion. It allows you to see who is trying to break into your server, and can automatically ban those user's IPs from further...
Running Windows through the Linux operating system allows you to run Windows-only programs and games without having to dual boot or make frequent switches between Windows and Linux. The VMware...
Google Earth is a great tool that provides maps and satellite images of the whole world. Some Linux users, however, find that it's difficult to use or won't run properly on Ubuntu or need to...
Running multiple SSL virtual hosts on a single IP address has been a problem in the web hosting realm over the years. This becomes even more of a problem in the age of cloud computing. This...
Using a program called VMware, you can run Windows on Linux. This is great for running Windows-only programs and games without having to dual boot or switch back to Microsoft OS.
The common means with which to archive a batch of files within a UNIX system is by using the “tar” command. When you issue a tar command you can easily roll up a group of files. This eases the...
If you are setting up a web server then having Zend's "Optimizer" for your server is a necessary evil for just about any client who uses PHP. Sometimes it can be tricky to install, I...
Sometimes when you have both Zend Optimizer and the ionCube loader installed on your system apache can break the first time you try and run it. This is typically becuase the two installers do...
Embedded programming comes with some complexities due to the limitations and specialization of the target hardware. Embedded software is usually installed and executed on small devices like...
Google Earth is a virtual globe application that is free-for-personal use on Windows, Mac and Linux systems. It maps the earth using images from aerial photography, satellite imagery, 3D buildings...
Linux time zones are simple and quick to change. Linux uses a symbolic link to set the time zone. The symbolic link is a file that references another file in the form of a path. When the two are...
Ubuntu is a free Linux-based operating system. You can install Adobe Acrobat on Ubuntu using Adobe Acrobat Reader's free software, which allows you to view and print PDF files. You can also...
Want to use your iPhone on a network other than AT&T?? Use this system to "jailbreak" your Apple iPhone.
If you are using an Asterisk IP-PBX to make international long distance calls, there are 4 good reasons to make the investment needed to implement the G.729 codec: 1. Although bandwidth may be...
Sun Microsystem's Java is used in web development to create dynamic web pages. It can be obtained through the various Linux package managers, but these packages may be out of date. To get the...
Have you ever been stuck on the Mac OS X terminal command line and not know what the name of the function you are trying to call is? Apropos is the name of the command you can use to carry out a...
Unfortunately, Google Earth is not available in the Ubuntu package repositories for simple installation. However, you can download Google Earth for Linux at the Google Earth homepage, and with a...
In Unix, all directories, devices and files are treated the same. This includes all of the Unix commands. As such, the commands are able to be manipulated in the same way as any other file. You...
Kerberos is a network authentication protocol used to authenticate users over a non-secure network. It requires that the server and client share a common key to encrypt and decrypt communication....
Kerberos is a network authentication protocol that will authenticate users over a non-secure network without the need for the user to send a password. It uses symmetric-key cryptography, which...
The Linux kernel is the part of the operating system that controls the hardware and system processes, and keeps everything working together. The default kernel can be used on most hardware...
Kerberos is a network authentication protocol that uses symmetric-key cryptography to authenticate users over a non-secure network via a ticketing system. It requires that the server and client...
Apache, MySQL and PHP are used together to create dynamic web sites. Apache is the web server component, MySQL is the database and PHP is the scripting language. They are all open source...
Kidney stones are mineral deposits that can form in the kidneys. The cause is yet unknown, but several treatment options are available to treat the condition.
Computer files ending with the suffix USR are user configuration files associated with applications that utilize a database. These files hold specific characteristics for individual users, above...
Create nightly backups of a subversion repository to ensure you never lose any of your important work.
With the release of Ubuntu 9.04 (Jaunty Jackalope) a new task bar notification system was introduced. This system was enhanced in Ubuntu 9.10 (Karmic Koala) and will remain a significant part of...
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