Kerren Ortlepp - Entroblog - Powered by Entrostat

Supabase RLS using Functions - Security Definers

Are you trying to create a new RLS policy using a Postgres function on Supabase? Don't forget to add SECURITY DEFINER to your SQL!!

angular

Angular Inputs - Improved Error UX

Here's an elegant way to see whether your input is in focus or not and how you can use that in the HTML template to trigger styling or other changes.

network

Routing through a Floating IP on Hetzner Cloud

How to route outgoing traffic through a Floating IP in Hetzner Cloud.

firewall

Hetzner DE Firewall and External DNS

I'm sure you've used a Hetzner DE server before. Their pricing is great, the servers work well, and their cloud prices are incredible! But if you get a bare-metal server, like one of the AMD AX-line servers (https://www.hetzner.com/dedicated-rootserver/matrix-ax) you might want

terminal

Install byobu on any Linux Distro

Recently, I started setting up Rocky Linux 9 servers only to find that byobu is not on the standard repos or epel-release. For me, the easiset way to install it was to build it from source. Before we start, there are a few dependencies you'll need to install.

linux

Installing NVIDIA Drivers on a Linux (Fedora) Laptop with Secure Boot Enabled

Here's a quick guide on how to install NVIDIA drivers on Fedora 36 with secure boot enabled.

cloudflare

Cloudflare & Subdomains

We've recently been using Cloudflare in front of applications for several reasons, such as a floating IP address, DDoS protection, automatic SSL generation, analytics, page optimisation, web application firewall, and many more. I highly recommend you look to see if it fits your needs for any application you&

typescript

Cool Typescript features I've learnt over the years

We've used Typescript in a lot of projects and over time I've kept track of a few things I think are cool.

typescript

Creating a config in NestJS using a barrel file

An alternative method to set up a config in NestJS which enables IDE auto-completion.

openvpn

OpenVPN vs Wireguard - Network Performance Tests

A comparison between OpenVPN and Wireguard using iperf3 network tests.

nestjs

Packaging NestJS Modules for NPM Installs

Create and package NestJS modules and push them to the npm registry. Now you can npm install them anywhere and start using them straight away!

git

Breaking up a Single Git Branch into Multiple Features

Sometimes we forget to change branches when developing or we just want to break up a feature. Here's a tutorial on how to get it done!

ubuntu

Debugging a Typescript Project (Nestjs in our case) Running in a Docker Container using Webstorm (or any IDE)

Debugging a project that runs in a Docker container can be tough! This guide runs through debugging a Typescript project (Nestjs) using Webstorm and docker. Although the guide uses Nestjs as the framework and Webstorm as the IDE, it should work in general for any IDE and any Typescript project.

ubuntu

Routing Multiple Domains using HAProxy (HTTP and HTTPS)

Routing to multiple domains over http and https using haproxy. The SSL certificates are generated by the hosts so haproxy doesn't need to have anything to do with that, this makes for a super easy setup!

nestjs

Setting up a Database Module in Nest.js

There were a couple of mistakes that I made when setting up a Nestjs database module. Hopefully this will help you avoid the same errors!