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How to setup an OpenVPN server for LAN Access only

Install OpenVPN

wget https://git.io/vpn -O openvpn-install.sh && bash openvpn-install.sh

Edit server.conf

/etc/openvpn/server/server.conf

Change the OpenVPN LAN address to prevent interfering with other OpenVPN connections

Delete Twilio Logs with bash

Some simple bash scripts for deleting all Voicemails, Call Logs, and Messages from your Twilio account.

Adapted from eric-brechemier/how-i-replaced-skype-with-twilio#6 (comment)

RTL8156 USB2.5G Ethernet Adapter on Ubuntu 20.04

Download: https://www.realtek.com/en/component/zoo/category/network-interface-controllers-10-100-1000m-gigabit-ethernet-usb-3-0-software

Extract the downloaded drivers

sudo tar -xvjf r8152.53.56-2.15.0.tar.bz2 -C /usr/src/

Create a DKMS.conf file

Ubiquiti UDM-Pro Dual-WAN Setup Scripts

VLAN to WAN2 Policy Based Routing + Disable WAN Failover

Tested on UDM-Pro 1.10.0

The following scripts can be used on a UDM-Pro with on boot script to force specific vlans out WAN2 as well as prevent that traffic from going out wan1 and all other traffic from going out wan2 in the event one WAN is disconnected.

curl -fsSLo /mnt/data/on_boot.d/98-vlan_to_wan2.sh https://gist.githubusercontent.com/GlitchWitch/9833888842dbd7d0b42669faab4c4a4a/raw/9ede55da6820c65c3aeb5d0951a71855641b0041/98-vlan_to_wan2.sh

Install the server

sudo apt install dante-server

Update the config file

sudo rm /etc/danted.conf
sudo nano /etc/danted.conf

	acl_smtp_mail=acl_check_mail
	acl_smtp_data=acl_check_data
	begin acl
	acl_check_mail:
	.ifdef CHECK_MAIL_HELO_ISSUED
	deny
	message = no HELO given before MAIL command
	condition = ${if def:sender_helo_name {no}{yes}}
	.endif

	# !/bin/bash
	#
	# Configure server to act as a reverse proxy for port 80/443 and only allow Cloudflare IPs
	# Usage: bash cloudflare-reverse-proxy.sh destinationip managmentip

	# Clear existing iptables

	iptables -F

	# Forward traffic from Cloudflare

	<?php
	/**
	* This section ensures that Twilio gets a response.
	*/
	header('Content-type: text/xml');
	echo '<?xml version="1.0" encoding="UTF-8"?>';
	echo '<Response><Message>Your message could not be delivered. This number only accepts encrypted messages through Signal Private Messenger. Download it here https://signal.org/install</Message></Response>'; //Place the desired response (if any) here

	/**
	* This section actually sends the email.

	background-image: url("data:image/jpg;base64,<\/style><svg/onload=alert(document.domain)>");
	background-color: #cccccc;