Note (October 2026): this post is from 2020 and uses Kafka 2.5 with ZooKeeper, which Kafka 4 removed. For a current setup see How to…
Linux cheat sheet
Category: Linux
A Site-to-site VPN is a type of VPN connection that is created between two separate locations. It provides the ability to connect geographically separate locations. for example a linux…
Create a blank /etc/snmp/snmpd.conf file with the following: Modify /etc/default/snmpd Change from: To: Restart snmp service
If you have Debian 10 installed with Gnome you probably do not have system tray icons at the top right corner. You need to install…
Updated October 2026. The 2019 version of this post was written for CentOS 7, which reached end of life in 2024. The steps below work…
On Linux you can use dd to make a backup from SD card. Reverse if and of (i.e. to where they point – source and destination) afterwards to restore, but…
This tutorial should work on most of the Ubuntu versions, I have tested it on Ubuntu 18.04 PostgreSQL is a powerful open-source database management system.…
LXD is a container hypervisor providing a ReST API to manage LXC containers. It allows running containers and managing related resources, like storage volumes and networks.…
Both flatpak and snap aim for cross-distro app distribution but the order of their feature development differs based on their own priorities. There was a…
Installing rkhunter on Ubuntu We now turn our attention to specific rootkit detection tools and rkhunter. This package is part of our standard Ubuntu repositories…