When installing a Debian Linux virtual machine on a Proxmox Virtual Environment (PVE) host, the Debian installer automatically installs the VirtIO paravirtualization drivers and the QEMU guest agen…| Majornetwork
In Python, sometimes you just need to catch all exceptions and show which one was it: try: do_something_important() except Exception as e: e_name = type(e).__name__ logger.error(“Exception ha…| Majornetwork
Let’s do some Docker networking with Zabbix proxies. The presented Docker configurations apply to other similar client-server applications as well, so you may find this useful even if you don…| Majornetwork
Proxmox Virtual Environment (PVE) has a built-in clustering feature that allows you to access all PVE nodes within the cluster by connecting to any of the nodes, by using a web browser or by connec…| Majornetwork
VRRP (Virtual Router Redundancy Protocol) is commonly used for providing first-hop IPv4 or IPv6 router (“default gateway”) redundancy for network-attached devices. Some network applianc…| Majornetwork
When using the built-in SSO (Single Sign-On) in NetBox with Entra ID, the Active Directory (AD) group or role information for the users is not available out of the box. Based on the discussions in NetBox repo I tested and wrote down a short memo of getting the users’ groups usable in NetBox. In this […]| Majornetwork
These notes have been tested with Proxmox Virtual Environment (PVE) 8.2.4, Debian 12 and cloud-init 22.4.2 (from Debian 12 packaging). First create a virtual machine and install Debian Linux on it normally, with all the additional tools and updates as required. I usually use the netinstall CD image from Debian. After completing the installation, for […]| Majornetwork
I often need a Linux virtual machine for testing specific things. Debian Linux is my choice of Linux distribution, and I have wondered how much space does each installed package take in it, to possibly optimize the size of the VM if needed. I installed two VMs: The results after “sudo apt clean“: Installation Disk […]| Majornetwork
RuuviTag is a small battery-powered sensor that measures temperature, humidity, air pressure and movement. It communicates the measured data by broadcasting the data values using Bluetooth. I’m using a few of those sensors to monitor some rooms at home. There is an official Ruuvi Gateway Router available that can be used to interface the RuuviTags […]| Majornetwork
I have been using VDR – the Video Disk Recorder – on my own Linux host for over 20 years. It has been the primary way of consuming broadcast TV content in our household since 2004. Unti…| Majornetwork
Interesting question: Why does Windows DHCP server first assign me a lease for only one hour, and after that extend it to one day (or whatever was actually configured in the DHCP scope)? First, let…| Majornetwork
This is part three of the DHCP relay mini-series: DHCP Relay, Part 1: One Relay, One Server DHCP Relay, Part 2: One Relay, Two Servers DHCP Relay, Part 3: Two Relays, Two Servers (this post) In thi…| Majornetwork
This is part two of the DHCP relay mini-series: DHCP Relay, Part 1: One Relay, One Server DHCP Relay, Part 2: One Relay, Two Servers (this post) DHCP Relay, Part 3: Two Relays, Two Servers In this …| Majornetwork