Category: General / Allgemein

Who is THE Urban Penguin?
06.08.2017

Andrew Mallett also on twitter apparently… 😀 pretty complete video series on LPIC1 FOR FREE ONLINE ON YOUTUBE 🙂 GOOD JOB MR MALLETT! 🙂 THANKS! LPIC2 not so much… you will have to pay for it 🙂 Andrew is an […]

02.08.2017

nginx can be used as webserver, web-proxy and even mail-proxy. „Apache ist aufgrund seiner Architektur und Arbeitsweise doch eher der Traktor unter den Webservern.“ X-D (src) let me try to translate: „Apache is due to its architecture and functioning rather […]

webserver software marketshare – NetCraft – Web Internet stats statistics – growth number of sites – total number of websites – internet stats statistics
27.07.2017

according to https://w3techs.com/technologies/overview/web_server/all apache(2 i guess) is still the dominant webserver on the internet with a market share of 50%. src: https://trends.builtwith.com/web-server according to builtwith.com it is „only“ 40% market share for the apache(2) webserver. also most sites are running […]

07.07.2017

btrfs is used by SUSE12 for the /root partition – where it is doing daily snapshots of the installed OS. It has more functionality built-in than just storing files. This article wants to take btrfs for a test-drive. Video Tutorials: […]

29.06.2017

teaching Artificial Intelligence Laboratory, Department of Informatics, University of Zurich Formal Methods for Computer Science II, Teaching Assistant, Fall Term 2013 Introduction to Artificial Intelligence: The ShanghAI Lectures, Teaching Assistant, Fall Term 2012 Institute of Embedded Systems, Zurich University of […]

27.06.2017

to be honest… i find all of those meassurement tools too complicated to install. they probably all have their validity – but why not simply do it like this: given that you have a webserver installed and the web-root is […]

about – x11 display server – display or login manager – window manager
14.06.2017

The X11 Window System Developer(s) X.Org Foundation  Initial release 6 April 2004; 13 years ago[1] Stable release 1.19.3 / 15 March 2017; 2 months ago[2] Repository http://cgit.freedesktop.org/xorg/xserver, git://anongit.freedesktop.org/git/xorg/xserver, git://anongit.freedesktop.org/xorg/xserver Written in C Operating system Cross-platform Size 3.7 MiB[3] Available in English Type Display […]

top10 most used mail servers – segfault exim4
10.06.2017

a hacked e-mail account is a catastrophe – look at Hillary. telnet dwaves.de 25; # a simple telnet tells you that this server is running Trying 78.46.249.71… Connected to dwaves.de. Escape character is ‚^]‘. 220 dwaves.de ESMTP Exim 4.XX_X Tue, […]

08.06.2017

passwd -l maria; # disables account maria passwd: password expiry information changed. grep maria /etc/shadow maria:!$6$w9DaelrP$/tJiXC2PU0B.XOupP0sFTySis5VfkMwv0DnoFy3.d.nC8gXJU.DSbU0Uryyex40P67keCFoQuxEjZ8RD9kDGU0:17325:0:99999:7::: passwd -u maria; # enable account maria passwd: password expiry information changed. /etc/passwd grep /bin/bash /etc/passwd; # output all interactive user accounts that use […]

gpg cheat sheed – encrypting files with gpg
08.06.2017

Warning! while gpg is very likely sound and solid encryption – what is far more likely to be compromised is YOUR HARDWARE – every network card – wifi card – usb UMTS G3 modem – PCI-Card – contains enough RAM […]

cool stuff you can do with ssh
07.06.2017

i assume you have setup public-private-key-authentication and tested its workings. run local scripts remotely You can run local scripts remotely by executing bash on the remote system and feeding it your script ssh user@host ‚bash -s‘ < script.s sftp kick […]

02.06.2017

looks different in every distro… Debian8 root@debian:~# uname -a; # tested on Linux debian 3.16.0-4-686-pae #1 SMP Debian 3.16.43-2 (2017-04-30) i686 GNU/Linux root@debian:~# ll /etc/X11/ total 72K drwxr-xr-x 2 root root 4.0K Jun 2 15:39 app-defaults -rw-r–r– 1 root root […]

29.05.2017

Everything in Linux is presented as files and folders – even devices – even your printer. And that is also how almost everything is read-write-accessed – as files. /dev, /proc and /sys are „virtual (pseudo) filesystems“ (not existing on harddisk, […]

26.05.2017

Yay! There are now 3500 Linux games on Steam https://t.co/AMTnssOUVQ i wonder if you can play all android(java) games on a PC as well?

24.05.2017

What is glibc? The GNU C Library project provides the core libraries for the GNU system and GNU/Linux systems, as well as many other systems that use Linux as the kernel. These libraries provide critical APIs including ISO C11, POSIX.1-2008, […]

19.05.2017

What are kernel modules? What exactly is a kernel module? Modules are pieces of code that can be loaded and unloaded into the kernel upon demand without rebooting the system. Without modules, we would have to build monolithic kernels and […]

19.05.2017

yeah i know i sometimes make fun of distributions that have like a partition for every /root/folder but well yes it has it’s reasons. suse12 uname -a; # tested with Linux suse 4.4.21-69-default #1 SMP Tue Oct 25 10:58:20 UTC […]