hostnamectl; # tested on Operating System: Debian GNU/Linux 10 (buster) Kernel: Linux 4.19.0-8-amd64 Architecture: x86-64 # find the umount binary /usr/bin/umount # this spelling problem # can drive one mad # if in a hurry ln -sv /usr/bin/umount /usr/bin/unmount # […]

GNU Linux Distributions – about Fedora -> CentOS -> RedHat

imho: CentOS is a rock solid server operating system. Why is CentOS perfect for servers? a server (usually) is build for a specific purpose and should have as little software installed as possible (more software = more reliability, speed and […]

why internet explorer is a severe security problem

„As explained previously, this flaw could allow a remote attacker to execute arbitrary code on targeted computers and take full control over them just by convincing victims into opening a maliciously crafted web page on the vulnerable Microsoft browser.“ https://thehackernews.com/2020/02/microsoft-windows-updates.html

How does a Hydrogen Fuel Cell work? – Hydrogen Fuel Cell RC Racing – Hydrogen Fuel Cell Toy car experiment

How does it work? nicely explained by an orio cookie 😉 MASSIVELY POWERFULL RC CAR! (First Porsche on Hydrogen, is a TOY CAR!) (shame on Porsche) The Hydrogen Powered Toy Car can be bought here: v1 https://www.conrad.de/de/p/horizon-fcjj-11-hydrocar-fcjj-11-brennstoffzellen-auto-ab-12-jahre-198062.html v2 https://www.conrad.de/de/p/horizon-fcjj-20-hydrocar-fcjj-20-brennstoffzellen-auto-ab-14-jahre-191435.html (the […]


basically one column view of a specific directory without all the „-rw-r–r–. 1 owner group 734 Jan 15 20:16“ clutter. ls -C1 /etc/lighttpd/conf.d/*.conf /etc/lighttpd/conf.d/access_log.conf /etc/lighttpd/conf.d/auth.conf /etc/lighttpd/conf.d/cgi.conf /etc/lighttpd/conf.d/cml.conf /etc/lighttpd/conf.d/compress.conf /etc/lighttpd/conf.d/debug.conf /etc/lighttpd/conf.d/dirlisting.conf /etc/lighttpd/conf.d/evhost.conf /etc/lighttpd/conf.d/expire.conf /etc/lighttpd/conf.d/magnet.conf /etc/lighttpd/conf.d/mime.conf /etc/lighttpd/conf.d/proxy.conf /etc/lighttpd/conf.d/rrdtool.conf /etc/lighttpd/conf.d/scgi.conf /etc/lighttpd/conf.d/secdownload.conf /etc/lighttpd/conf.d/simple_vhost.conf /etc/lighttpd/conf.d/ssi.conf […]

RedHat podcasts – season 1 episode 1 – The OS wars

https://www.redhat.com/en/command-line-heroes/season-1/os-wars-part-1 direct link: https://dts.podtrac.com/redirect.mp3/audio.simplecast.com/f7670e99.mp3 by: https://saron.io/ https://www.linkedin.com/in/saronyitbarek http://feeds.codenewbie.org/cnpodcast.xml Tweets by saronyitbarek  


„The Linux Foundation has become one of the main engines and drivers of IT technology. It has also helped to overcome the old opposition of Open Source developers versus IT industry. Today, more than half of Global 2000 Software and […]

Russian IT Security Updates 2020-01

now WITH SPICY COMMENTS X-D SecurityLab, [22.12.19 12:40] A Twitter user using the alias 08Tc3wBB created tfp0-an exploit that allows you to jailbreak the latest iPhone models with IOS 13.3. The functionality of the exploit has already been confirmed by […]

the second nftables howto – it is fast and …… complicated

with all the benefits of nftables: performance an important question is: how well can nftables / firewalld shield against DDoS? (the developers need to consider this problem as „default“ scenario, yes this is something one excepts a firewall at least […]

gnu linux bash – ssh login as different user

situation: one is userA but wants to ssh login to server with ipv4: via userB (dedicated user for that server/task). so what one does is: make sure one can login as userB than as userA: userA: ssh -v -i […]