Guides, implementation notes and technical experiments across Unix, Linux, monitoring, security, data visualization and local AI.
Installing Raspbian/Debian on a Raspberry Pi. Debian ========= # Rasbian Image Lite # Textmode install # After initial boot do a reboot shutdown -r now #System: Password user pi; Hostname; Boot_To_CLI; Disable…
Read articleInstalling FreeBSD on a Raspberry Pi. FreeBSD is not a official Linux type of distribution. FreeBSD…
Read articleInstalling Arch Linux on a Raspberry Pi ArchLinux ========= https://archlinuxarm.org/platforms/armv6/raspberry-pi https://archlinuxarm.org/platforms/armv7/broadcom/raspberry-pi-2…
Read articleInstalling CentOS on a Raspberry Pi. Install CentOS 7 (CentOS 8 gives issues on Raspberry Pi)!! yum install dosfstools bsdtar ALWAYS THINK OF SELINUX: firewall-cmd, getenforce/setenforce, ls -liaZ, ps -efZ,…
Read articleInstall the needed software. apt-get -y install mariadb-server mariadb-client mysql_secure_installation Enter current password for root (enter for none): Set root password? [Y/n] Y New password:<your password>…
Read article====================================================================================================================================================== Upgrade version of elasticsearch on Linux #Stop running…
Read articleUsing: - The offline package Google Charts (see other page) - The access.log from apache webserver (I use a json format version, but with some tweaking you could use the default apache logging) - A SQL…
Read articleInstalling the trusted self signed certificate on different OS's ----------------------------------------------------------------- Mac OS X: sudo security add-trusted-cert -d -r trustRoot -k…
Read articleNRPE is used as an agent on remote clients of Nagios server. Also, install this agent on the Nagios Server.. NRPE Server: tar zxvf nrpe-4.#.#.tar.gz ./configure make all make install make install-config make…
Read articleNSCA is used for sending results from certain (passive) checks to the Nagios Server. apt-get install libmcrypt* tar zxvf nsca-2.#.#.tar.gz ./configure make all cp -p src/nsca /usr/local/nagios/bin/ chown…
Read articleInstalling Nagios agents on Linux distros. If the operating system (linux) is the same distro&version on Server as on the Clients, just copy the full plugin's&binaries from the server to the agent systems.…
Read articleSetup Nagios Core server (free license). apt-get install build-essential wget libgd-dev unzip groupadd -g 5666 nagios useradd -u 5666 -g nagios -c "Nagios user for monitoring" -d /usr/local/nagios nagios…
Read articleDS18B20 Temperatuur sensor ========================== https://www.kernel.org/doc/Documentation/w1/w1.generic If you have a w1 bus that never changes (you don't add or remove devices), you can set the module…
Read articleYou can use the Google Charts API for creating graphs on your website with your data as input. https://developers.google.com/chart You can have a offline (without internet connection) and local copy of the…
Read articleThis page shows the way to control your lights and other devices in your house by using a simple 433 Mhz transmitter connected to the Raspberry Pi. For more than 10 years I used the WiringPi software from…
Read articleThis procedure describes a FULL calendar with almost everything you need on functionality. ---------------------------------------------------------------------------------------------------------------…
Read articleAPACHE SSL HTTPS WEBSITE a2enmod ssl a2enmod cgi a2enmod speling a2enmod rewrite a2enmod ssl headers a2disconf apache2-doc systemctl restart apache2 apt-get install python-certbot-apache apt-get install…
Read articleTo control a relay on Raspberry Pi GPIO use the following Python script. This is using the gpiod library which is supported on all models of the Raspberry Pi! The following script is used to switch a relay for…
Read articleIf you want to read the status of a GPIO input port use the following Python script. The next Python script is reading the status of the GPIO PIN 22 on a 0/1 value and will print "closed"or "OPEN". I use this…
Read articleSince Windows 11 has been available for a few years now and Windows 10 update support will also expire in October 2025!! I would like to inform you about the options you have to upgrade to Windows 11. You may…
Read articlesudo su - apt update apt install -y git git-lfs build-essential cmake python3-pip libopenblas-dev glslc cd /opt git clone https://github.com/ggerganov/llama.cpp groupadd -g 8088 llama useradd -u 8088 -g llama…
Read articleThe goal is to share knowledge and tips about cool things (that's for me ;-) About me: Building complete Unix & Linux environments within small and large companies. Manages a wide range of systems running on…
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