One of the effects of introducing Systemd into Debian is that the traditional naming convention for network interfaces has changed. No more is your Ethernet interface called eth0, instead it has a name based on its MAC address. It’s still possible to use the old naming convention by creating a Systemd configuration file for each

Often it is necessary for testing purposes to recreate the networking conditions found in a high latency network, such as a satellite link.
Firstly create a network bridge that can be placed in-between the test network and its router (assuming eth0 and eth1 are the bridged interfaces).
To increase network latency use the following command: …

When developing on platforms with a different architecture and cross-compiling, it is often necessary to print the stack trace on a coredump.

TOOLCHAIN=/path/to/toolchain
DEBUGER=$TOOLCHAIN/gdb
EXECUTABLE=myprogram…

We head across the Rhine from Karlsruhe and into Pfalz, where we soon leave the motorway and head south to France. We cross the border in the small town of Scheibenhardt which is split between the two countries, where we immediately head east, following the border on the French side until we hit the town

Sailing from Algeciras on the southern tip of Spain, we make the two hour ferry crossing to Tanger. During the crossing we complete immigration controls on board. There are further controls once we arrive in the port, which we rapidly clear being the first vehicles off the boat.

The scenario is that your Enlightenment (e17) desktop has locked up, and your keyboard and mouse appear to be non-responsive. However you do not want to reboot as you will lose all of your open windows. It is possible to restart the Enlightenment engine without affecting the windows being currently displayed. Either switch to a

Often for testing purposes it is necessary to restrict the speed of a network connection. This can be achieved using the netem module to tc.

For example, to restrict the bandwidth on eth0 to classic dial-up speeds use the command:
tc qdisc add dev eth0 root netem rate 56kbit

The compose key may be used to type unicode characters easily on Linux systems… All of these commands should be executed as a normal user, no root access required.Restart X and you will be able to use unicode: <Compose key> + " + u = ü<Compose key> + ' + e = é<Compose key> +