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Recently two of my articles reached the Digg frontpage at the same day.

Every time a request hits your server, PHP has to do a lot of processing, all of your code has to be compiled & executed for every single visit.

CDs and DVDs don't have the eternal life, so you might want to back them up as ISO images.

If you've got a website that's heavy on your web server, you might want to run some processes like generating thumbnails or enriching data in the background.

Making sure your system is up to date is a key attribute to its security.

Since 2005 there has been an immense increase in brute force SSH attacks and though Linux is pretty secure by default, it does not stop evil programs from indefinitely trying to login with different passwords.

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Everyone knows that RAM is so much faster than a hard disk.

If you're running Squid to cache your website, you can use an htaccess file to control what kind of files should be cached, and for how long.

Let's say your site is becoming a big success and as a result it's becoming slower and slower.

You want your website to be as safe as possible.

I ran across php value, php flag, php admin value and php admin flag in a couple of .htaccess files, and I've used them sometimes as well by just pasting an example, but I've never really understood why there was such a great diversity.

Ever wanted to change the crontab of a server, but got an editor on screen that you're totally unfamiliar with?

I recently had to install a couple of squid servers to act as reverse proxies for a webcluster.

Readable URLs are nice.

Hello World!