Examples of systemd network configurations. These are some collection of systemd network configuration. It does not require anything installed but systemd, not even ifupdown. note: Debian 9 aka Stretch Simple DHCP ethernet setup Interface: eth0, file name is not important, but it must have the .network suffix. /etc/systemd/network/wired.network [Match] Name=eth0 [Network] DHCP=ipv4 fixed address [Match] Name=eth0 [Network] Description="My fancy network configuration" Address=10.10.10.20/24 Gateway=10.10.10.1 DNS=10.10.10.2 DNS=10.10.10.3 Domains=fancynetwork.internal NTP=ntp.fancynetwork.internal wireless interface Authentication are managed by wpasupplicant and wpagui.

Example session with the Thing Magic M5E-C Rfid device I’m developing an AVR firmware which has to interact with the Thing Magic M5E-C rfid reader. Reading the datasheet may not be enough to get all the info someone need to get right to the point. At least it took me a couple of days to sort all these things out, mostly to access a protected tag. I wrote is a python3 code to interact easily with the device.

Bitfield with struct and union in C (gcc) with endianess I have updated the union struct and bitfield in C fixing both the endianess of the bit-field and the warning message if the -Wpedantic is used with gcc (bit-field is a GCC extension). /* * Copyright © 2016 Enrico Rossi <e.rossi@tecnobrain.com> * * This work is free. You can redistribute it and/or modify it under the * terms of the Do What The Fuck You Want To Public License, Version 2, * as published by Sam Hocevar.

please see updated version: union struct bitfield and endianess in C Typical usage of a bitfield with struct and union in C /* * Copyright © 2016 Enrico Rossi <e.rossi@tecnobrain.com> * * This work is free. You can redistribute it and/or modify it under the * terms of the Do What The Fuck You Want To Public License, Version 2, * as published by Sam Hocevar. See http://www.wtfpl.net/ for more details.

Notify-send and procmail to get new email notification. I don’t want to use/install mail-notification software for the simple task to notify when a new mail arrives. Consider also that my Incoming mail chain is: fetchmail -> procmail -> mh_folders so I added this config to my procmail config file. :0hc |grep "^From:\|^Subject:" > /run/user/1000/mail.notify-send; DISPLAY=:0.0 notify-send --icon=/usr/share/icons/gnome/32x32/actions/mail-message-new.png "`cat /run/user/1000/mail.notify-send`"; aplay --quiet --nonblock ~/wavs/incoming_message.wav [Update 05/2018: Using DBUS SESSION instead of DISPLAY]