GPG error: The following signatures were invalid: EXPKEYSIG B188E2B695BD4743 DEB.SURY.ORG
Error says: Full listing For treatment, you need to delete …
Linux
HOW TO INCREASE DENY IP LIMIT IN CSF FIREWALL
In CSF firewall, old IP addresses will be automatically removed …
basic csf commands
ConfigServer Security & Firewall (csf) A Stateful Packet Inspection (SPI) …
How to install zabbix 5.2 on debian 10
Install and configure Zabbix server for your platform (debian 10 …
How to fix ‘add-apt-repository command not found’ Error on Ubuntu and Debian
One of the many ways to install software on Ubuntu or Debian is to use …
How to fix ‘add-apt-repository command not found’ Error on Ubuntu and Debian Read More »
how to shutdown / reboot debian 10
Using shutdown command Open the terminal and execute the following …
How To Install Node.js on Debian 10 buster
Introduction Node.js is a JavaScript platform for general-purpose programming that allows …
How to Install Python 3.8 on Debian 10
Python is one of the most widely used programming languages …
linux shell tricks Cheat Sheet
The top 30 Linux shell tricks Run the last command …
how to manage exim message queue
The main exim binary (/usr/sbin/exim) is used with various flags …