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    Tech notes

    Useful code snippets and other little things

    Found 12 items

    Upgrading PostgreSQL from 17 to 18

    Helps upgrading PostgreSQL from 17 to 18 including extensions and migrating data.

    Verify email deliverability for free

    Running Reacher service to verify email delivarability

    Docker basics

    Handle most common issues running Docker

    Preparing for DNS outages

    DNS Servers of your hosting provider might go down unexpectedly. This protects against that inevitable eventuality

    Extracting certificates from acme.json

    For example when working with Traefik managed certs. For example when using Dokploy. For example when looking to have SSL in PostgreSQL. For example.

    Using Sentry

    Tips for using Sentry

    Set up and secure Docker

    First time Docker on Ubuntu Server & Securing your install with UFW

    Setting up Redis

    Use Redis for PubSub, Queues and a small lightweight DB. Try to be as close to Redis system as you can to reduce latency.

    Managing users on Linux

    Adding, removing, issuing SSH keys

    Setting up PostgreSQL

    Securing and setting up your own instance of PostgreSQL.

    Setting up NGINX

    First time setup of NGINX server on Ubuntu, adding SSL support.

    Setting up an Ubuntu server from scratch

    How to set and secure a fresh install of Ubuntu Server