Sometimes it is necessary to speed up videos and/or reduce the resolution. This will typically result in a much smaller file size. ffmpeg and avconv allow video file manipulation on the command line.
These commands work on Debian, and will likely work on Ubuntu and other Linux distributions.
IPv6 auto configuration on Linux will normally assign the same address every time when connecting to a specific network. This address would normally be formed from the network prefix and local interface MAC address. When using IPv4 your identity is slightly masqued by NAT. Although your single public IP address may be tracked, it is
It’s a few simple steps to create GPG encryption keys and use these for signing and encrypting files and emails.
Create a new pair of public/private cryptographic keys:
user@yourhost:~$ gpg --gen-key
…
follow the prompts use the defaults if unsure…
WPA and WPA2 provide good WiFi security which is mainly susceptible to brute force attacks. Here is how such a brute force attack may be carried out.Using Debian and an Intel Corporation Centrino Wireless-N 1000 card:
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: …
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