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...
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...
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...
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...
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 /...
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...
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...
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...
The year 2017 comes to an end and with it various projects, companies and products in the IT industry. Not only the Jamaican coalition failed and Germany’s formerly second largest airline filed for bankruptcy, many...
Not only Intel is affected by the serious vulnerability in processors, by which attackers can read sensitive data. Google’s Project Zero explains the functioning of the memory leaks and Linus Torvalds expects honesty. Intel wants to quickly take...
