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Setup nut and netdata on Ubuntu

In this document, I will explain how to setup nut (Network UPS Tools) on Ubuntu 18.04 and 20.04.

It is basically the next chapter of my previous gist, Upgrade nut on Ubuntu 18.04.

I'll only document USB connected UPS and not the other supported connection modes.

Install required dependencies

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Cloud images in Proxmox

• Preparing Cloud-Init Templates
• Cloud-Init Support - Proxmox VE
• Proxmox VE Administration Guide

A script which automates these steps for multiple distros incl. CoreOS, CentOS, Arch and ALpine

• create-cloud-template.sh

Steps for creating an Ubuntu 18.04 cloud template

• Using a ready-to-use Ubuntu image

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#include <SoftwareSerial.h>

#define MSP_ATTITUDE 108

SoftwareSerial mspSerial(11, 12); // RX TX

void setup() {
    mspSerial.begin(9600);
    Serial.begin(9600);
}

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#!/bin/sh
# Userland mode (~$USER/), (~/).

# ~/.fonts is now deprecated and that
#FONT_HOME=~/.fonts
# ~/.local/share/fonts should be used instead
FONT_HOME=~/.local/share/fonts

echo "installing fonts at $PWD to $FONT_HOME"
mkdir -p "$FONT_HOME/adobe-fonts/source-code-pro"

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Theory:

your git repository can have more than one remote server; In this case we want to have two:

1. one for our private repository on gitlab (will be the default one, called origin)
2. one to be connected to the source repo on github, to be able to pull new changes (will be called upstream)

How to make a private fork from github to gitlab

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[ req ]
default_bits        = 2048
distinguished_name  = req_distinguished_name
attributes          = req_attributes
prompt              = no

[ req_distinguished_name ]
C            = MX
ST           = VE
L            = XL

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<?php

namespace App\Events;

use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
use Illuminate\Queue\SerializesModels;

class NewMessage extends Event implements ShouldBroadcast
{
    

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alias gl="git log --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit"

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REM # VirtualBox home directory.
"C:\Program Files\Oracle\VirtualBox\VBoxManage.exe" setproperty machinefolder "X:\VirtualMachines\virtualboxImages"
REM # Vagrant home directory for downloadad boxes.
REM REG ADD HKCU\Environment /v VAGRANT_HOME /t REG_SZ /d "X:\VirtualMachines\VAGRANT_HOME"

REM - this will only set the env var for the current session. Use setx to persist it.
set VAGRANT_HOME=X:\VirtualMachines\VAGRANT_HOME
REM #########################################################################################
vagrant up
pause

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If you're not familiar: What is fail2ban? fail2ban is an awesome linux service/monitor that scans log files (e.g. auth.log for SSH) for potentially malicious behavior. Once fail2ban is tripped it will ban users for a specified duration by adding rules to Iptables. If you're unfamiliar with fail2ban Chris Fidao has a wonderful (& free!) series about security including setting up fail2ban here.

Recently Laravel released a new feature in 5.1 to throttle authentication attempts by simply adding a trait to your authentication controller. The Laravel throttle trait uses the inputted username, and IP address to throttle attempts. I love seeing this added to a framework out of the box, but what about some of our other apps not built on Laravel? Like a WordPress login? Or even an open API etc.? Ultimately,