GNU Linux howto ssh sshd config hardening security guide
10.Mar.2024

ssh can be regarded as “critical core infrastructure” time spend on it’s security is time well spend time + money well invested: https://www.openssh.com https://github.com/openssh current manpage: ssh.man.txt WARNING: this howto guide IS MOST LIKELY INCOMPLETE! WARNING! WHEN RUNNING THE SCRIPT: […]

GNU Linux howto – enable (very detailed) logging logs log postgres database + monitor script
10.Mar.2024

#!WARNING! THIS WAS TESTED FOR OLDER RHEL7 AND CENTOS! # manual editing vim /var/lib/pgsql/12/data/postgresql.conf; # postgres main config file # semi-automatic editing via sed # optional: postgres: enable detailed logging POSTGRES_MAIN_CONFIG=”/var/lib/pgsql/12/data/postgresql.conf” sed -i ‘s/#log_statement = [^”]*/log_statement = ‘all’/g’ $POSTGRES_MAIN_CONFIG sed […]

programming language performance benchmarks
10.Mar.2024

Just as php python is a widely used easy to read and write on-the-fly interpreted language. performance? performance in the sense of data throughput or amount of prime numbers per second but it is also: how long will a user […]

GNU Linux (Debian 12) – how to install mate desktop
02.Mar.2024

mate desktop is leightweight easy to use (“start” menu is top left and hopefully will FOREVER stay there) consistent simplified design hostnamectl; # tested on Static hostname: debian12 Operating System: Debian GNU/Linux 12 (bookworm) Kernel: Linux 6.1.0-18-amd64 Architecture: x86-64 su […]