# yum based (fedora/redhat/centos) yum update –exclude=kernel* # apt based apt-mark hold package-name* # to unhold: apt-mark unhold package-name*

Let the cow fly

means: „to party“ or „to make something work“ long story in a galaxy… far far away… „Es gab eine Zeit, in der Kühe die vorherrschende Spezies in der Galaxis war. Sie bebauten Planeten, so weit das Auge reichte. Ihr Horizont […]


i want to create a autostart script that starts whenever the server starts. mkdir /scripts vim /scripts/start.sh #!/bin/bash echo „========= starting up docker service“ systemctl start docker echo „========= starting up docker containers“ docker start containername vim /scripts/stop.sh #!/bin/bash echo […]

VestaCP disable roundcube webmail

CentOS7: # search for roundcube config file find / -name *roundcubemail.conf* /usr/local/vesta/install/rhel/6/roundcube/roundcubemail.conf /usr/local/vesta/install/rhel/7/roundcube/roundcubemail.conf /usr/local/vesta/install/rhel/5/roundcube/roundcubemail.conf /etc/httpd/conf.d/roundcubemail.conf # search for installed packages yum list installed |grep roundcube roundcubemail.noarch # is enough to disable roundcube rm -rf /etc/httpd/conf.d/roundcubemail.conf # seems to be no […]

open source hardware

https://elinux.org/Embedded_Open_Modular_Architecture/EOMA68 https://elinux.org/images/9/9e/Eoma68.pdf https://fosdem.org/2018/stands/

OpenAI – dota bots beat best human players

get the source: https://github.com/openai (mostly Python?) „Deep Reinforcement Learning via Bayesian Neural Networks“ https://arxiv.org/abs/1605.09674 Gym Retro, a new platform integrating classic games into Gym, starting with 30 SEGA Genesis games. (src) MarI/O: neural network learning bot playing: Mario comes with source […]

Meltdown Demo at GitHub – RedHat explains MELTDOWN

MELTDOWN (exploiting speculative execution to read ALL of the RAM of a server via CPU that has this feature (all CPUs back to Pentium MMX of 1996) explained: from RedHat Youtube Channel: https://www.youtube.com/channel/UCp6NUFV9mSEK6RxUiEVymVg   Demo at GitHub: Meltdown Proof-of-Concept: required: […]