Blog
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August 20, 2025
PostgreSQL: Delete database and user
Using PostgreSQL you might want to delete a database or a user you previously created. To delete a...
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August 19, 2025
PostgreSQL: Create database with custom owner
When sharing a PostgreSQL server with multiple projects, you might want to create a database and use...
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June 27, 2025
Netplan: Rename a network interface
To rename a network interface, first we should know the MAC address of the interface we want to rena...
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June 26, 2025
Configure LTE 4G dongle on Ubuntu Server
4G USB dongles are useful for having an internet connection using a SIM card. To configure a USB d...
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June 25, 2025
MicroK8s: Configure Garbage Collection to reduce used space
The folder `io.containerd.snapshotter.v1.overlayfs` contains the different image layers used by cont...
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June 24, 2025
Sort du -h output by size
The command `du` is useful to explore the folder content sizes, but the results are sorted by name i...
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June 23, 2025
CloudNativePG: Run a PostgreSQL cluster using Barman Cloud Plugin
The built-in support for Barman Cloud on CloudNativePG is deprecated since version 1.26 and will be...
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June 12, 2025
Solve Outlook stuck on "Sending Message" but nothing in outbox
Sometimes Oulook gets stuck with the status "Sending Message" but there's nothing in the outbox. Pro...
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May 13, 2025
Install K9s utility on Ubuntu server
K9s is a utility that provides a terminal UI to interact with your Kubernetes clusters. To install...
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May 7, 2025
Setting up a Docker Registry backed with Cloudflare R2
You can run a private Docker registry using Cloudflare R2 as your storage backend, in this tutorial...
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May 6, 2025
Configuring Ubuntu Server as a basic router
First, we're going to configure the networking, lets assume we have two different network interfaces...
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May 5, 2025
CloudNativePG: Run PostgreSQL inside Kubernetes
Using CloudNativePG you can run your own PostgreSQL database inside your Kubernetes cluster. > The...
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May 2, 2025
Prevent SSH from disconnecting while idle
When you leave an SSH session idle for too long, it may get disconnected. This is usually due to fir...
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May 1, 2025
MicroK8s: Setting up MicroCeph as storage
We can configure MicroK8s to use Ceph as its storage. This tutorial assumes you already configured a...
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April 30, 2025
MicroCeph: Setting up a multi-node Ceph cluster
MicroCeph is a utility mantained by Canonical that allows us to deploy a Ceph cluster without dealin...
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April 29, 2025
MicroCeph: Setting up a single-node Ceph cluster
MicroCeph is a utility mantained by Canonical that allows us to deploy a Ceph cluster without dealin...