E-Mail Blacklist, DMARC and other Tools

Check following:

• MX-Toolbox
• SPF Lookup

Installing bitcoin-core on Ubuntu 20.04

Enable snapd:

sudo apt update
sudo apt install snapd  

Install bitcoin-core from snapd:

sudo snap install bitcoin-core

In case you have your .bitcoin directory on another device than the root device:

snap connect bitcoin-core:removable-media

Problem with usb device redirect with qemu-kvm under ubuntu 16.04.3

If you don't see any redirected usb devices in guest system, try to edit
sudo joe /etc/apparmor.d/abstractions/libvirt-qem

that it looks like
...
  # for usb access
  /dev/bus/usb/ rw,
  /etc/udev/udev.conf r,
  /sys/bus/ r,
  /sys/class/ r,
  /dev/bus/usb/*/[0-9]* rw,
  /run/udev/** rw,

...

Mount ecryptfs

# ecryptfs-recover-private .Private 

# mount -o remount,rw /path/to/.../.Private /tmp/ecryptfs.XXXXXXXX

libvirt und virt-manager on Ubuntu 16.04.1

References:

• Preinstallation checks
• QEMU/KVM Installation
• Virt-Manager (VMM)
• Bridge for QEMU/KVM

Installation:

sudo apt install qemu-kvm libvirt-bin

sudo apt-get install virt-manager 
sudo apt-get install libgl1-mesa-glx



Check if all is running:
systemctl status libvirtd







virsh list --all

Shouldn't return any errors!



Further steps:



Add users to libvirtd: sudo adduser <username> libvirtd
Configure bridge in /etc/network/interfaces as described here.

RUDP - Reliable UDP Implementations

• https://github.com/andrewzk/Reliable-UDP

Was gehört alles zum Frankenberger Viertel in Aachen?

Weil bei manchen keine Einigkeit dafür herrscht, was zum Frankenberger Viertel in Aachen zählt, habe ich hier ein Dokument gefunden, das sich damit befasst und auf der Karte das Frankenberger Viertel zeigt.