System & Network Admin

Linux has rich virtual networking capabilities that are used as basis for hosting VMs and containers, as well as cloud environments. In this post, I will give a brief introduction to all commonly used virtual network interface types. There is no code analysis, only a brief introduction to the interfaces and their usage on Linux.

A comprehensive quick reference guide to the Yazi terminal file manager keyboard shortcuts or keybindings organized by task.

Speed up Nix deployments, especially on resource-constrained devices, by avoiding the evaluation tax

I have a Dell XPS 13 ultrabook which has a wifi nic, but no physical ethernet nic (wlan0, but no eth0). I need to create a virtual adapter for using Vagrant with NFS, but am finding that the typical

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Get to know how to configure network settings on Debian 12 with this educational guide. Learn the pros & cons of DHCP and static IP setups!

This blog explained the systemd on Debian 12 with its core components and units. The usage of systemd has been explained with different commands on Debian 12.

On Linux, a network bridge without any IP address configured will still process IP packets. How to disable such a feature?

RustDesk offers an open-source remote desktop solution with self-hosted server options. Perfect TeamViewer alternative for secure, private, and customizable remote access. Explore our professional on-premise licenses.

This page provides installation and usage guidance for ipfs-update, a command-line utility that can be used to install, uninstall, downgrade and upgrade IPFS Kubo.

What is IPFS and why we need IPFS IPFS stands for InterPlanetary File System which is a peer-to-peer distributed file system that stores…

Hi Is there any way to use swarm key to make the network private but still be able to use public nodes to find each node in the private network? If not, what are considerations in not having this functionality? Why not enable nodes to find each other using any node but only transmit data between those with the same swarm key? My problem that I want to address is, I have several nodes behind NAT each in different locations and with dynamic ips. nodes also can be added. I want to make the proce...

Spin up three droplets over at Digital Ocean, one in London and one in San Francisco and one in Singapore. And then install, make keys…

Using IPFS Kubo through the command-line allows you to do everything that IPFS Desktop can do, but at a more granular level, since you can specify which commands to run. Learn how to install it here.

Discover how to install an IPFS node on your Synology NAS and create your personal decentralized storage node.

Solution to the below problem: Use $ddns-confgen or $tsig-keygen, the former provides you with the syntax to paste into your named.conf file Problem: I am trying to configure a BIND9 (ver9.161-Ubun...

DuckDB is an in-process SQL OLAP database management system. Simple, feature-rich, fast & open source.

UniGetUI: A better UI for your package managers. Install, update remove and manage any software you want to with UniGetUI

Fred and George, Turtles in love There are hundreds of cool command line tools that have been made over the years built on the unix philosophy. Plain text is powerful, ubiquitous, and human-centric. It was also the only option for computing for quite a while. It’s no surprise that some of the most sophisticated tools are focused on it. One such package is GNU Recutils, a set of tools and libraries to access human-editable, plain text databases called recfiles.

In the olden days of the WWW you could just put a robots.txt file in the root of your website and crawling bots from search engines and kin would (generally) respect the rules in it. These days, ho…

You’ve probably noticed that everywhere you go — the doctor’s office, hotels, or retail shops, there are tiny PCs everywhere. These small PCs often show up on the surplus market f…

After switching from Firefox to LibreWolf, I became interested in the idea of self-hosting my own Firefox Sync server. Although I had seen this was possible before, I had never really looked into it—until now. I embarked on a journey to set this up, and while it wasn’t completely smooth sailing, I eventually got it working. Here’s how it went. Finding the Right Sync Server Initial Search: Mozilla’s Sync Server Repo I started by searching for “firefox sync server github” and quickly found Mozilla’s syncserver repo.

So you need to resize an image? Maybe you need a smaller version to upload to your website. Or a bigger one for a presentation. Perhaps you just want to experiment with different sizes and formats. Whatever the reason, resizing images is a crucial skill for any aspiring graphic designer, photographer, or casual image editor. […]