Tutorials
Fio
Learn about Fio: Fio Fio Basics Compile Fio Visualize Fio Logs with fio2gnuplot What is Fio? Fio (Flexible I / O Tester) is an I / O performance benchmarking tool for Linux, other Unix Read more…
Tutorials
Samba sharing with authentication
Complementing a simple Samba release, this article shows how to create a username and password based Samba share using a Debian 8 based system. Ubuntu 16.04 and Windows 10 are used as client software for testing the connection . Installation and configuration Read more…
Tutorials
Compiling Linux kernels under Ubuntu or Debian
Compiling a Linux kernel is not an everyday occurrence for most administrators. It is all the more important to know the right tools when the time comes. The following article shows examples of how Mainline / Vanilla Kernel and the distribution-specific kernel Read more…
IT News
Canonical wants to collect telemetry in Ubuntu
In order to improve its development on Ubuntu, the Linux distributor Canonical wants to automatically collect user hardware information as well as information about installed packages and crash reports. “We want to be able to focus our development efforts on Read more…
Knowledgebase
Network analysis with Wireshark
With the program Wireshark you can read traffic from your network (sniff). In the example you see the possibility to analyze HTTP traffic. Example HTTP traffic On the start page, you can choose which interface to Read more…
Tutorials
Wlan power management under Linux with iw rules
The command-line tool iw allows a variety of configuration options for wireless devices. Since the power management concerning. The transmitting / receiving performance with some cards is problematic, you can disable this in Linux. The article shows how to install Read more…
Tutorials
Set up static ARP entry
This article describes how to create a static ARP entry on Linux and Windows. Static ARP entries for important network components in the same Layer 2 segment provide some protection against ARP spoofing. Ubuntu / Debian Read more…
Tutorials
Linux CPU Performance Measurements with mpstat
The Linux tool mpstat provides information about the utilization of the individual CPUs of a system. For multi-core CPUs, each core is displayed as a CPU. Hyperthreaded CPUs display two CPUs per physical CPU or physical core. For most Linux Read more…
Tutorials
Linux analysis of execution time with time
On Linux, the time command can be used to measure the execution time for a command line program. This article shows this with the example of the updatedb program. call The timecommand is simply given before the program to Read more…
Knowledgebase
Varnish Web accelerator
Varnish is a web accelerator (reverse proxy), which provides relief for the actual web server (the backend). It has been designed from the ground up just for this use, unlike traditional proxies (eg Squid). The project website Read more…
