script

Hello, friends, many of you know that I use Bash every day. Many assume that is because I mainly do GNU / Linux system administration, but they are wrong… I use Bash every day in very different contexts. Demonstration A few days ago, I announced on several networks such as LinkedIn …

UnOrBlacklist is a set of two Bash shell scripts for use as a “firewall”, based on iptables and ip6tables to quickly block / unblock an IP address or an IPv4 or IPv6 network. It keeps a raw log file with each blacklisted IP so that it can easily be replayed if needed. Although this security mechanism …

Hello everyone, I have just published a new tool that makes it easy to synchronize a directory with rsync over SSH on any port (handy for migrations). It works in both directions. In antesync mode: the data will be synchronized from the server where you …

In this video for Linux / Unix-like systems, since the Telegram API documentation has no bash code examples, I will show you how to start playing with it and write functions you can easily reuse in your shell scripts. Watch the video on YouTube ↗ Christophe Casalegno If you want to talk …

In this video, I show you how to easily set up MySQL or MariaDB replication with a single Bash command on Linux. This script was tested with MySQL versions 5.5 to 5.7 (I have not yet tested it with MySQL 8) and MariaDB versions 10.0 to 10.4. You can download the …

In the previous video I finished with a demonstration showing that the Bash function we had just implemented on Linux worked properly. But when I watched the video later, I realised there was actually an error: a good opportunity to debug Watch the video on YouTube ↗ …

In this video I show you a very simple way to write a new function, starting from a different function with a similar structure. Watch the video on YouTube ↗ Christophe Casalegno You can follow me on: Twitter | Facebook | Linkedin | Telegram | Youtube

Video: How to easily write Bash scripts for Linux with several thousand lines of code, using variables, functions and source. Watch the video on YouTube ↗ Christophe Casalegno You can follow me on: Twitter | Facebook | Linkedin | Telegram | Youtube

This little Bash script lets you easily install Jitsi on a Debian Linux server with a single command. Using it could not be simpler: you need a Debian 9 server (it may work on Debian 10, but I have not tested it), then download the file and run it, passing as a parameter …

Good evening, today I decided to share a few of the bash functions I use in my shell scripts. I explain what each one does. These are tiny functions, easy to understand and modify if needed. You can also download the complete file of functions from the contributions page. scpcopy: This bash function …

“Pingback” DDoS attacks on WordPress sites can generate large numbers of requests that can ultimately affect your website’s performance and availability. You can easily recognise these attacks in your logs: thousands of requests from “WordPress xxx” User-Agents sending you a “pingback”. …