cecilemuller

How to setup Let's Encrypt for Nginx on Ubuntu 18.04 (including IPv6, HTTP/2 and A+ SLL rating)

---

Virtual hosts

Let's say you want to host domains first.com and second.com.

Create folders for their files:

Cartexius

Reference - https://www.eriksmistad.no/getting-started-with-google-test-on-ubuntu/

sudo apt-get install libgtest-dev

sudo apt-get install cmake # install cmake

cd /usr/src/gtest

sudo cmake CMakeLists.txt

cecilemuller

How to create an HTTPS certificate for localhost domains

This focuses on generating the certificates for loading local virtual hosts hosted on your computer, for development only.

Do not use self-signed certificates in production ! For online certificates, use Let's Encrypt instead (tutorial).

IdrisCytron

/*
  Application:
  - Interface water flow sensor with ESP32 board.
  
  Board:
  - ESP32 Dev Module
    https://my.cytron.io/p-node32-lite-wifi-and-bluetooth-development-kit

  Sensor:
  - G 1/2 Water Flow Sensor

Paraphraser

Recipe: from MQTT to InfluxDB via Node-RED

• 2024-05-16 adds case study explaining how to extract values from topic strings, and how to specify the measurement name in the message payload provided to the "influxdb out" node.
• 2023-12-02 revise graphics to correspond with "influxdb out" node, and explain the pros and cons of InfluxDB 1.8 vs InfluxDB 2.

Introduction

Getting data produced by IoT sensors into a database is practically a mandatory step before effective visualisation (eg dashboards).

This recipe shows you how to get an MQTT payload into an InfluxDB database using three Node-RED nodes. It makes the following assumptions:

chrisanthropic

Download the image builder

• git clone git@github.com:Robertof/nixos-docker-sd-image-builder.git
• cd nixos-docker-sd-image-builder

Configure for Raspi4

• modify /config/rpi4/default.nix to increase size of boot partition
  • this step is optional but I ran out of space in /boot pretty quickly with the default setting since I'm still learning and rebuilding a lot. Let's leave some room for trial & error.
  • sdImage.firmwareSize = 1024;
• modify /config/sd-image.nix
• ./rpi3 becomes ./rpi4

tdcosta100

WSL2 with GUI using Xvnc

In this tutorial, we will setup GUI in WSL2, and access it using VNC. No additional software outside WSL (like VcXsrv) is required, except, of course, a VNC Viewer (RealVNC, TightVNC, TigerVNC, UVNC, etc, all of them might work flawlessly).

The key component we need to install is tigervnc-standalone-server.

For this setup, I will use Ubuntu 20.04 LTS (Focal Fossa, unfortunately 22.04 does not work), and install GNOME Desktop. Since the key components aren't bound to Ubuntu or GNOME, you can use your favorite distro and GUI. Check the Sample screenshots section for examples.

So let's go. First, we need a working WSL2 installation.

zach-klippenstein

import android.annotation.SuppressLint
import androidx.compose.animation.core.animateDpAsState
import androidx.compose.animation.core.animateFloatAsState
import androidx.compose.foundation.Canvas
import androidx.compose.foundation.background
import androidx.compose.foundation.gestures.awaitFirstDown
import androidx.compose.foundation.gestures.forEachGesture
import androidx.compose.foundation.gestures.horizontalDrag
import androidx.compose.foundation.layout.Arrangement.spacedBy
import androidx.compose.foundation.layout.Box

gruberdev

Awesome Stars

Contents

• AGS Script
• Assembly
• AutoHotkey
• Blade
• C

Aqua-4

TIMED_OUT="HostedRendezvous: Rendezvous lookup failed: Hosted Bootstrap error: Network failure: Timed out fetching resource"

# sample response variable
# RESP="Jun 23 17:49:07 pi-desktop vncserver-x11[915]: HostedRendezvous: Rendezvous lookup failed: Hosted Bootstrap error: Network failure: Timed out fetching resource"
RESP=$(service vncserver-x11-serviced status)

if [[ "$RESP" =~ "$TIMED_OUT" ]]; then
    echo "Network Failure, commencing reboot"
    $(reboot)