After replacing my 4x 1000 MBit link aggregation with ASUS XG-C100C networking (10 GBit via Cat5e cables :D), I was astonished how slow data transfer took place. There were Several pitfalls which I debugged and here are some important points: Before you debug your network, make sure, you solve the … Continue reading
Some circuits require the input voltage to be current-limited. This can be achieved by a simple circuit using two transistors and two resistors. In this example we have an input voltage VBB_BURN of 59 Volts, that has to be limited to 100 mA before it goes to the socket (VBB_SOCKET). … Continue reading
Compile the IBM XT-BIOS from source Dedicated to my friend Peer (as he loves the IBM PC and not the Mac, he just doesn’t know that he does) Prerequisites Original IBM XT-BIOS Source listing `XTBIOS.ASM` Original Intel Toolchain for 80(1)86/80(1)88 CPUs Bochs or equivalent emulator for the toolchain Support for … Continue reading
„How can you use this?“ – a friend asked me. He added „Your bathroom is the most terrible I have ever seen! I first didn’t notice… but it really is f***** up !!“ Well – he was right 🙂 So… also a nice bathroom can be quite attractive to women… … Continue reading
Enabled services: systemd-resolved NOTE: Replace ${systemconfig} by your etc directory. I am not allowed to write this directory path due to server policy rules I cannot change. Assuming you have a working openvpn configuration named ${systemconfig}/openvpn/client.conf then the only step to activate the openvpn connection is to type systemctl start … Continue reading
Required packages: cups, ghostscript, gsfonts, gutenprint When you plug-in your printer via USB, you should see similar kernel messages via ‚dmesg -H‘: usb 4-1.1: reset high-speed USB device number 3 using ehci-pci [ 2576.915714] usblp 4-1.1:1.0: usblp1: USB Bidirectional printer dev 3 if 0 alt 0 proto 2 vid 0x04E8 … Continue reading
Alsa is the standard sound system with hardware support and PulseAudio is an additional system which can use Alsa devices. PulseAudio is necessary for flash videos in firefox to play with sound and also my skype installation needed PulseAudio. For volume control one can easily use amixer from Alsa. Most … Continue reading
Required packages: alsa Optional packages: pulseaudio You can test if your microphone is working with: arecord -vv -f dat /dev/null Continue reading
Copy the example file from /etc /netctl/examples to /etc /netctl Modify the contents and rename the file to the profile name. Activate the profile with netctl enable PROFILENAME Continue reading
Required: Kernel supports network adapters Required packages: iw wpa_supplicant dialog You can check, if your kernel has a module loaded for a specific hardware by using the lsmod and the lspci commands. You can issue lspci -k to see a list of pci devices together with the loaded kernel module. … Continue reading
