Server health checking is the ability of the load balancer to run a test against the servers to determine if they are providing service. Ping:Â This is the most simple method, however it is not very reliable as the server can be up whilst the web service could be down. TCP connect:Â This is a more [...]
Typically a load balancing method or strategy is used to decide how the load balancer chooses where to send the request. There are many strategies available depending on the vendor, however a few common ones are listed below: Round robin: The most  simple method, each server takes a turn. Least number of connections: The load balancer will [...]
A hardware load-balancing device (HLD), also known as a layer 4-7 router, is a physical unit that directs computers to individual servers in a network, based on factors such as server processor utilization, the number of connections to a server, or the overall server performance In networking, load balancing is a technique to distribute workload [...]
This bootable ISO live CD/DVD (NST Live) is based on Fedora. The toolkit was designed to provide easy access to best-of-breed Open Source Network Security Applications and should run on most x86/x86_64 platforms. The main intent of developing this toolkit was to provide the network security administrator with a comprehensive set of Open Source Network [...]
Ark is a program for managing various archive formats within the KDE environment. The latest stable release is version 2.15, included in KDE Applications 4.5. Ark is a free and open source software, available for Linux and similar operating systems under the GNU General Public License (GPL), Version 2. Archives can be viewed, extracted, created and modified [...]
File Roller is an archive manager for the GNOME environment. With File Roller you can: Create and modify archives. View the content of an archive. View a file contained in the archive. Extract files from the archive. File Roller is only a graphical interface to archiving utilities such as tar and zip. Supported archive types include : [...]
Xarchiver is a lightweight desktop independent archive manager built with the GTK+2 toolkit. It was my intention to develop a simple GUI which could be used with any desktop environment and would operate using the command line rather than API calls. Xarchiver has been designed from the ground up to be fast and easy-to-use. Its user interface [...]
QEMU is a generic and open source machine emulator and virtualizer. When used as a machine emulator, QEMU can run OSes and programs made for one machine (e.g. an ARM board) on a different machine (e.g. your own PC). By using dynamic translation, it achieves very good performance. When used as a virtualizer, QEMU achieves [...]
Parallels offers a full range of virtualization and automation software for consumers, businesses and service providers. The award-winning Parallels product portfolio helps individuals and organizations to fully experience and optimize computing today. Although best known for the Mac version of their virtual machine software, Parallels also runs virtualization on Windows and Linux. The Parallels software [...]
VirtualBox is a general-purpose full virtualizer for x86 hardware. Targeted at server, desktop and embedded use, it is now the only professional-quality virtualization solution that is also Open Source Software. Some of the features of VirtualBox are: Modularity. VirtualBox has an extremely modular design with well-defined internal programming interfaces and a client/server design. This makes it [...]
SMS stands for Superb Mini Server. A Linux operating system console based and manageable through Webmin web-based interface… Although described as a mini server, have all the features of a powerful server such as apache2, sendmail, postfix, spamassassin, clamav, squid, iptables, MailScanner, mysql, cups and lot of other server packages. SMS also features TorrentFlux, a powerful [...]
Zeroshell is a Linux distribution for servers and embedded devices aimed at providing the main network services a LAN requires. It is available in the Live CD or Compact Flash image and can be configured and administered through a web browser. Below are the main features of this Linux distribution useful to build Net Appliance: [...]
Linux is a UNIX like Operating System, famous for its reliability and security features, that runs on all kinds of computers. Linux was started by Linus Torvalds in 1991. The Linux Kernel and most applications it offers, are mostly GPL licensed, called Open Source. You can find more about Linux in general here. The StartCom [...]
SME Server is a leading Open Source distribution for small and medium enterprises. It is a simple, powerful, secure Linux server for networking and communicating, used by thousands of individuals, companies and organizations all over the world. SME Server provides a friendly, free alternative to expensive proprietary software, standing apart from the competition by shipping [...]
The Community Edition of EnGarde Secure Linux was designed to support features suitable for individuals, students, security enthusiasts, and those wishing to evaluate the level of security and ease of management available in Guardian Digital enterprise products. Its development is very much driven by not only the requests from the community, but also their continued [...]