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How to install OpenSSH server on Alpine Linux (including Docker)
OpenSSH is a popular implementation of the SSH protocol that can be used to remotely access and manage an Alpine Linux server, including inside a Docker container. You can install OpenSSH server on Alpine Linux using the package manager apk. Here's an example of how to install OpenSSH server on A
How to check ZFS File system storage pool on Linux/Unix
You can check the status of a ZFS storage pool on Linux/Unix by using the zpool command. Here are some common options for checking the status of a ZFS storage pool:rn rn zpool list : This command will show you the status of all available ZFS storage pools on the system, including the pool name, s
How to install FFmpeg with NVIDIA GPU acceleration on Linux
FFmpeg is a powerful multimedia framework that can be used to process video and audio files. NVIDIA GPU acceleration allows FFmpeg to use the power of NVIDIA GPUs to accelerate video processing tasks. Here is an example of how to install FFmpeg with NVIDIA GPU acceleration on Linux:rn rn Install NVI
How to find the NVIDIA cuda version
You can find the NVIDIA CUDA version by using the nvidia-smi command in the terminal. The nvidia-smi command provides information about the NVIDIA GPU(s) installed on the system, including the CUDA version. The command to check CUDA version is:rn rn rn nvidia-smi --query-gpu =driver_version --for
How to install and upgrade OpenSSH server on FreeBSD
OpenSSH is a popular implementation of the SSH protocol that can be used to remotely access and manage a FreeBSD server. You can install and upgrade OpenSSH server on FreeBSD using the package manager pkg. Here's an example of how to install and upgrade OpenSSH server on FreeBSD:rn rn Install Ope
How to set up ssh public key password-less on FreeBSD
Setting up an ssh public key for password-less authentication on FreeBSD involves the following steps:rn rn Generate an ssh key pair on your local machine, if you don't have one already. rn rn rn rn ssh-keygen -t rsarn rn rn rn Copy the public key to the remote server. rn rn rn rn ssh - copy - id us
How to install shellcheck on Alpine Linux
Shellcheck is a static analysis tool for shell scripts. You can install Shellcheck on Alpine Linux using the package manager apk. Here's an example of how to install Shellcheck on Alpine Linux:rn rn Update package list: Before installing Shellcheck, you should first update your package list by ru
How to install memcached on OpenSUSE / SUSE Linux
Memcached is a distributed caching system that can be used to speed up web applications by caching data in memory. Here is how you can install Memcached on OpenSUSE/SUSE Linux:rn rn Install the memcached package using the zypper package manager: rn rn rn rn sudo zypper install memcachedrn rn rn rn S
How to configure static IP Address on FreeBSD
In FreeBSD, you can configure a static IP address using the command-line interface. Here is an example of how to do this:rn rn Open the network configuration file: rn rn rn rn sudo nano /etc/rc.confrn rn rn rn Configure the IP address, netmask, and gateway: rn rn rn rn ifconfig_em0= "inet 192.168.0.
How to tell and force Composer to use a specific PHP version such as 7.x or 8.x
You can tell Composer to use a specific PHP version by specifying the version in the composer command. For example, to use PHP version 7. ( simpleeverydaymom.com ) 4: n n n php7.4 /usr/local/bin/composer <composer command > n n n You can also configure Composer to use a specific PHP version by
How to install PHP 7.2/7.3/7.4 or 8.0 on Amazon Linux 2
Amazon Linux 2 comes with PHP pre-installed, but it might not be the version you need. If you want to install a different version of PHP, you can use the package manager yum to do so. Here's an example of how to install PHP 7.4 on Amazon Linux 2:rn rn Install the PHP 7.4 package: rn rn rn rn sudo
How to find out if Raspberry PI Linux OS needs a reboot
You can find out if a Raspberry Pi Linux OS needs a reboot by checking the uptime of the system. The uptime is the time since the last reboot. n You can check the uptime by running the command: n n n uptime n n n It will show you the current time, the time when the system was last booted, and the sy
How to install Chromium browser on Ubuntu Linux
Chromium is an open-source version of the Google Chrome web browser. You can install Chromium on Ubuntu Linux using the package manager apt. n Here’s an example of how to install Chromium on Ubuntu Linux: n n Update package list: Before installing Chromium, you should first update your package
How to trim leading and trailing white space in bash
In bash, you can trim leading and trailing white spaces from a string using parameter expansion.rn rn Trim leading white spaces: To trim leading white spaces from a string, you can use the following syntax: rn rn rn rn string = " leading white spaces " rn string = "${string#" ${ string %% ]*} "}" rn
How to on enable kernel crash dump on Debian Linux
Enabling kernel crash dump on Debian Linux involves several steps, here is an overview of the process:rn rn Install the kexec-tools package: rn rn rn rn sudo apt update rnsudo apt install kexec - toolsrn rn rn rn Configure the kernel to use the kdump feature by adding the following line to the /etc/
How To Convert AWS Route53 to Cloudflare Let’s Encrypt DNS challenge with acme.sh
acme.sh is a command-line utility that can be used to issue and manage Let’s Encrypt SSL certificates. You can use acme.sh to convert an AWS Route53-managed domain to a Cloudflare-managed domain and complete the Let’s Encrypt DNS challenge. Here’s an example of how to do this: n n
How to install YubiKey Manager GUI on Linux
The YubiKey Manager GUI is a graphical user interface for managing YubiKey devices on Linux. Here is how to install it on different Linux distributions:rn rn Ubuntu, Debian, Linux Mint: rn rn rn rn sudo apt install yubikey-manager-guirn rn rn rn Fedora, CentOS, RHEL: rn rn rn rn sudo dnf install yub
How to install whois on Ubuntu / Debian Linux
Whois is a command-line utility that allows you to look up information about domain names and IP addresses. On Ubuntu and Debian Linux, you can install whois using the package manager apt. Here's an example of how to install whois on Ubuntu or Debian Linux:rn rn Update package list: Before instal
Ubuntu 22.04 LTS Set Up OpenVPN Server
Setting up an OpenVPN server on Ubuntu 22.04 LTS can be done in just a few minutes by following these steps:rn rn Install OpenVPN: rn rn rn rn sudo apt update rnsudo apt install openvpnrn rn rn rn Generate the necessary encryption keys and certificates: rn rn rn rn sudo easyrsa init -pkirnsudo easyr
How to fix “bash: add-apt-repository: command not found” error on Ubuntu/Debian Linux
The "bash: add-apt-repository: command not found" error occurs when the add-apt-repository command is not found on your Ubuntu or Debian Linux system. This command is used to add a PPA (Personal Package Archive) to your system, allowing you to install software from a specific repository. To fix t
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