If you maintain multiple WordPress blogs, you have probably been frustrated by how tedious it is to update plug-ins and themes on each blog every time there is an update. By following my detailed step-by-step instructions, you can harness the power of Linux’s symbolic links (symlinks) to setup one central shared repository of plug-ins and another for themes. All your WordPress installations can then be pointed to the one repository, and updates become much easier. Suggestions for how to fix common implementation problems are also included. Plug-in authors may be interested in learning more about this technique, since it can break some plug-ins that use hard coded pathnames.

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RAID is a method of storing data on multiple hard disks. Through the “magic” of the disk array, all of the individual disks appear as a single disk to the operating system. Large arrays can be split into smaller logical disks, that can be any size up to the total amount of disk space. Depending on exactly how the data is spread across the multiple disks determines the relative speed and security of the data on the disks.

Back in the old days when large (750MB) hard disks were relatively expensive (say $1200 US) and smaller disks (100MB) were relatively inexpensive (maybe $130), somebody figured out… [Continue reading]

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A client asked: Do I need a surge protector? If the power goes out sometime, what happens w/ the computer?

A surge protector is very important for protecting computers and other electronic equipment from damaging electrical spikes and surges. Fortunately this client already had one. Read the rest of the comments I wrote to her explaining the difference and dispelling the confusion surrounding surge protection and uninterruptible power supplies:

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Preventive Maintenance Helps Safeguard Data
Most of our clients find the information stored on the hard disk is much more important than the hardware that stores the data. Taking steps to protect this information makes sense. That is what preventive maintenance is all about.
Preventive Maintenance Improves Security
Regular virus and spyware scanning is critical to keeping your data safe. Security patches and software updates are released several times each month for a variety of software. Some notify you, but others do not. All are important if you wish to stay protected. System and security logs give a wealth of information about the state of the equipment and the network. By checking the logs, we often spot potential problems early and avoid emergencies by… [Continue reading]

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