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Virtio: An I/O virtualization framework for Linux - Linux tutorial


With all the virtualization schemes running on top of Linux, how do they exploit the underlying kernel for I/O virtualization? The answer is virtio, which provides an efficient abstraction for hypervisors and a common set of I/O virtualization drivers. Discover virtio, and learn why Linux will soon be the hypervisor of choice.
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Understand your Domain Name System
Understand your Domain Name System
The Domain Name System (DNS) is the service that converts hostnames and domain details into the IP addresses required for application to communicate. This article looks at the basics of DNS setup, how servers and requests are distributed, and exchanged and how to set up and keep a DNS environment running smoothly.
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Tutorial: Conditions in bash scripting (if statements)
Tutorial: Conditions in bash scripting (if statements)
If you use bash for scripting you will undoubtedly have to use conditions a lot, for example for an if ... then construct or a while loop. The syntax of these conditions can seem a bit daunting to learn and use. This tutorial aims to help the reader understanding conditions in bash, and provides a comprehensive list of the possibilities. A small amount of general shell knowledge is assumed.
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Stopping Spam with Linux
Stopping Spam with Linux
Spam is a topic that will get most sys admins to start pulling out their hair whenever it's mentioned. This deluge of white noise floods e-mail inboxes every day. But is there a way to turn down the volume on some of this noise? In this Admin Digest, Rob Reilly reviews some of the better ways to block dreaded spam.
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Sort command in unix with example
Sort command in unix with example
Sorting is one of essential task we always need to perform and UNIX or Linux has great suppot for sorting by using sort command. No matter what kind of shell script you are writing or you are looking for some information or reports many times you need to sort the output from one command or a set of line. In this UNIX sort command tutorial we will see how we can use sort command in UNIX to achieve our sorting goal. This tutorial contains some of practical example of sort command for sorting data in UNIX. With the use of “uniq” and “sort” command you can remove duplicates and present a sorted data in UNIX.
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