• What happens if you don't understand what the system is doing behind your back

    Transaction fees aren't the only thing. Be careful not to run out of gas.


  • How to start the old Cisco firewall management utility on modern Linux systems

    With our workshop project "Three quarks for Muster Mark" we received an award from Federal Minister Mag. Iris Eliisa Rauskala as part of the culture connected initiative - cooperation between schools and cultural partners.

  • But very little CPU and disk activity. What could it be?

    On one of our Proxmox 6 servers we recently had the issue of Icinga constantly complaining about a high load average. The load average itself is a bit of a weird metric, it measures the length of the run queue. That means how many proceses are waiting to get run - this could either be because they are waiting for CPU time to become available or data to arrive from the disk.

  • Many years ago I "inherited" a website which contains a lot of user generated content. I can't go into details here in order to protect the innocent guilty - and myself.

  • I'm here to annoy telemarketers.

    Do you ever get those calls where people want to sell you stuff? Or tell you about "great" investment opportunites? I heard it's quite common in the US because call termination to the US costs next to nothing - and they have a common language with a country which most of those calls originate from: India.

  • ... or has it? Supermicro isn't sure.

    I mange quite a few servers with Supermicro boards. I kind of like them because the out of band management solution on Supermicro is not the worst thing ever. I haven't found any good remote KVM solution yet, but the solution made by ATEN is at least partially usable. That is, unless you log in to the webapplication, only to be kicked out again:

  • Not by time, but by distance

    "Diiii,diii,diiiiii,chhhhhhh,chhh,shhh ...." - remember those sounds? Those were the sounds of dial up modems when you connected to the internet. Thankfully those times are long gone now. There is no "going online" after 18:00 anymore (because it was cheaper), you're simply connected all the time. In a weird turn of events, instead of connecting to the internet via analog phone lines we're now connecting analog phone lines through the internet, but I digress ....

  • A story of my old 486 notebook. Is it dead or alive?


  • ... if you use them with disks larger than 2TB

    This just happened to a friend of mine. He had two 3 TB disks in a RAID-1 configuration, attached to an older Marvell RAID controller. (But the manufacturer really doesn't matter). Suddenly Windows started complaining about being unable to access folders and then the disk completely went away. Disk management just shows it as "unformatted". However both disks report as OK. What happened?

    The Teres-1 is an open-hardware, open-source notebook designed by Olimex in Bulgaria. 

    I recently got my Olimex Teres-1 and I must say I really like this small netbook. It doesn't have the fastest CPU, the most memory or best screen, but for most purposes it's good enough. Besides, it's not meant as a high end device but a hacker toy, and one of the first devices which is (almost) completely open. You can download all schematics, all sources, blueprints, everything! This alone makes it an amazing device.