Mass changing of DSNs

DSN changes are ubiquitous in any most systems that need to connect directly to a database. Although you can prevent them by aliasing your DB to a CNAME and doing the modification globally, or adding an additional IP address, that’s something you learn “for the next time”. Here’s my script on how to do this easily.
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Bind 9.x and DNS

While some people may have some concerns about it, BIND is the de-facto standard for Internet DNS serving. Although it’s config files may look confusing at first, a little experience shows you that it is actually complex, and there’s nothing you can do about it. However, most people won’t have to deal with anything that hard to use. So here’s a little article on a quick and dirty start to Bind.