mandarin.no

Here the other day I was adding some security settings on a WordPress installation. One of them involving changing the prefix of WordPress’ database tables. It’s pretty straight forward, but you’ve got to remember changing some values inside some of the tables. I found quite a few articles on this subject, but none that informed me that I had to do a certain change on ALL users.

The Rambling Thoughts Blog has an easy to follow article on how to change the database prefix of your wordpress installation. What they forget to mention is that the changes you have to do in the usermeta table has to be done on ALL user accounts. If you don’t do it you might end up getting this error message when trying to log in:

You do not have sufficient permissions to access this page.

If you’re interested in securing your blog, head over to Lorelle and read the article Firewalling and Hack Proofing your WordPress blog. It contains links to other interesting and very helpful articles on the subject.

If you have experienced getting only gibberish from the Arduino when tracing it’s output using Flash, Flex or AIR, you might have misconfigured the socket server.

I spent a whole day trying to figure out why I only got square boxes, a couple of random numbers and an occasional ‘f’ now and then. I read somewhere that the configuration file for the socket server had to match the settings of the serial drivers. I didn’t pay much attention to it because I took it for granted that it was configured using a set of common settings. It turned out that I was wrong.

My drivers were set to 9600 baud, while my socket server ran at 19200 baud. Setting the socket server to 9600 baud solved all of my problems! Yes, all of them.