Today I want to compare my both favorite keyboards, an IMB Model M from 1985 and an Hewlet Packard keyboard C1405A from the 90ies. Both keyboards have a good typing sound, a good feedback, both are very heavy wighted, but I don't want to lose too many words, see yourself, which is the better one.… Read More »
You probably know, that you can't enable ssh or telnet on a Cisco AP, until you have set a custom password, different from the default credentials ( username = Cisco, password = Cisco). The Cisco WLC prevents you from that indeed bad practice. But finally, with AC-Tube, the Open Source CAPWAP AC, you are free… Read More »
Here is an algorithm, written in Python, to factorize integers, using backtracking. The time consumption should be around . So it's not the fastest one, but it's nice. To use it, save the code to a file. If you call the file, for example, "factorize.py", then run python factorize.py <integer to factorize> Have fun!
Have you ever missed an important event, because you haven't got the invitation email, but an invitation email was evidently sent to you? If so, you are probably using an email address at hotmail.com or outlook.com or in general Microsoft's mail services, also including addresses at live.com and other domains. The reason for this is… Read More »
For some people it's a must-read: The Untold Story of Silk Road part 1 and part 2.
If you have downloaded a PHP extension from PECL, and you want to modify it before compiling and installing, you might want to do the following. First extract and prepare the files for compiling. # tar xzf extension.tgz # cd extension # phpize #./configure Now modify the files to fit your needs. And then compile… Read More »
A few years ago SAP released its MaxDB under GPL. Newer versions are not open source anymore, but you can still download the open source versions of MaxDB from their FTP server. On all other places in the WEB the software seems to be gone. Update 9/6/18: The SAP ftp server seems to be gone… Read More »
Today I downloaded Cisco's Virtual Wireless Controller to play around with. I wanted to run the controller in VirtualBox, but simply importing the downloaded .OVA file didn't work straight away. After the import was done, I ended up with a virtual machine configuration, where a bootable image was missing. So I had to untar the … Read More »
In case you didn't already know ... Did you know, bitcoin mining is basically the same as dice rolling? There are many articles for non-technicians about bitcoin mining, where the mining process is often explained as "solving complex equations". And these equations get more complex, when more miners compete, so the difficulty raises. That's wrong.… Read More »