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DNS/BIND Resource Record: Routing Mail with MX Records

Proper DNS configuration with MX records is a requirement for routing email for a domain.

DNS/BIND: Create a Basic Zone File

A zone file holds the DNS resource records for all of the domain names associated with the zone. Zone files store all of the data served by a DNS server. This recipe describes the basic zone file format without any resource records suitable for any type of zone file.

Android: Block unwanted calls without 3rd party apps for free

There may be times that you feel frustrated when a number keeps calling you repeatedly. Although you may find many apps that can block calls, not all of them are well-developed and you may to pay to use them. Luckily, there is a built-in function in Android system that allows you to block calls without installing any additional applications. This tutorial will show you how to activate it.

Use the Task Scheduler to prevent applications from asking for updates

I get it. Out-of-date software does not work as well and is more likely to have security problems. However, I am already very anal about updating my computer to the latest and greatest. I want to update the applications on my terms and timing. One of the best places disable auto-updating software is through the Windows Task Scheduler.

Internet Explorer 9: Allow single word intranet sites in address bar

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This guide will explain how to enable the single word intranet setting in IE9. This basically will allow you to type in a single word address (also know as a portal) into the web address bar and have it bring you directly to your corporate intranet page.

Safely Reboot a Linux System

The proper method of rebooting a Linux system ensures data integrity by terminating processes and synchronizing the filesystems.

Enable vi ksh Command Line Editing

The Korn shell has the ability to utilize vi editor commands to edit commands in your history. If you are familiar with the vi editor, you will love this feature.

Loop Over a Set of Files from the Shell

Shell scripts are powerful because anything that can be done from the shell can be done in a shell script. Likewise, functionality seen usually only in shell scripts like looping and conditionals is fair game, typed directly into the shell. Looping over a set of files using a for loop is a simple example.

Create a Local Solaris Flash Archive

Flash archives are mirrored images of a system that can be installed on another system of the same architecture. The flash archive can include third-party packages as well as optional Solaris components like Solstice DiskSuite.

Validate Information from a Solaris Flash Archive

Flash archives are mirrored images of a system that can be installed on another system of the same architecture. Once you have made a flash archive, you can easily get information about the archive.

Add Swap Space Temporarily in Solaris

Sometimes swap space is inadequate, but no free disk slices are available. Until a permanent solution is available, a file can be constructed and added to the swap space.

Display Solaris Swap Information

Having an appropriate amount of swap space is important for optimal system performance. Simple commands allow monitoring swap space utilization.

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