Category Archives: UNIX

Amanda: recovering a Mac OS X client

This is the third post about Amanda, an open source backup system for UNIX-based computers. The previous two posts were a general introduction to Amanda inner workings, and instructions for configuring a Mac OS X amanda client. In this post … Continue reading

Posted in Mac OS X, Mac OS X Server, UNIX | Leave a comment

Amanda: installing a Mac OS X client

In my previous article, I presented Amanda, its basic concepts, and how does it compare to Time Machine. Now, I’ll give you an example of how to install and configure a Mac OS X machine to be an Amanda client. … Continue reading

Posted in Mac OS X, Mac OS X Server, UNIX | 1 Comment

Amanda on Mac OS X

Given that Retrospect 8 is essentially a piece of crap, I’ve been searching for an alternative I can use when Time Machine is not an option for backing up Macs. The main two points I’m focused on is reliability and … Continue reading

Posted in Mac OS X, Mac OS X Server, UNIX | 4 Comments

Avoid escaping URLs in Apache rewrite rules

Today we started hacking some Apache rewrite rules to make some URLs a little more friendly. All of the URLs we are rewriting are entry points for our application, which in the WO world means direct actions. All of them … Continue reading

Posted in UNIX, WebObjects | 1 Comment

Testing memory

I wrote some days ago about badblocks for testing a hard drive surface. Now, the same for memory. As I said, I bought a second-hand PowerMac G5 to replace my old G4. When I got the new machine, I run … Continue reading

Posted in Mac OS X, Mac OS X Server, UNIX | 6 Comments

Bad blocks? badblocks!

There are not many things I miss from Mac OS 9. But there’s one that was really useful: the ability to test a hard drive surface. OS 9 disk formatter (I don’t even recall it’s name) had a “Test Disk” … Continue reading

Posted in Mac OS X, UNIX | 23 Comments

Emulating a slow internet link for http

When developing a Web Application, many times you need to test how will it react then operating over a slow internet connection, like 56k modem, GPRS or any other situation where the bandwidth is tight. This is important not only … Continue reading

Posted in UNIX, WebObjects | 6 Comments

Backups, rsync, and –link-dest not working

I use Retrospect to backup most of the machines at GAEL. You may wonder why do I use a commercial tool that still shows it’s OS 9 roots, instead of open source alternatives. Well, Retrospect has some cool advantages (namely … Continue reading

Posted in Mac OS X, Mac OS X Server, UNIX | 12 Comments