yboujraf

Securing Asterisk VoIP Server with IPTables

This Gist contains my IPTables rules for securing the Asterisk VoIP server. The "string" module is used to identify legitimate users and block attackers.

Link to my detailed Asterisk security tutorial

Learn how to set up your personal VoIP server

↓  ↓  ↓ Scroll down for the IPTables rules ↓  ↓  ↓

License

yboujraf

var net = require('net');

// creates the server
var server = net.createServer();

//emitted when server closes ...not emitted until all connections closes.
server.on('close',function(){
  console.log('Server closed !');
});

yboujraf

var udp = require('dgram');

// --------------------creating a udp server --------------------

// creating a udp server
var server = udp.createSocket('udp4');

// emits when any error occurs
server.on('error',function(error){
  console.log('Error: ' + error);

yboujraf

/*
 *  V4L2 video capture example
 *
 *  This program can be used and distributed without restrictions.
 *
 *      This program is provided with the V4L2 API
 * see http://linuxtv.org/docs.php for more information
 */

#include <stdio.h>

yboujraf

/*
 *  V4L2 video capture example
 *
 *  This program can be used and distributed without restrictions.
 *
 *      This program is provided with the V4L2 API
 * see http://linuxtv.org/docs.php for more information
 */

#include <stdio.h>

yboujraf

Raspberry Pi cpuinfo vs device-tree

My attempt at gathering information on how to detect exactly which Raspberry Pi model we are running on for https://github.com/jperkin/node-rpio. The goal is to come up with an optimal way of detecting the host across a wide range of hardware and OS.

Data

Name (Rev)	cpuinfo	/proc/device-tree/model	device-tree/soc/ranges	OS
B (1.0)	0002	Raspberry Pi Model B	7e000000 20000000 01000000	7
B (1.0)	0002	Raspberry Pi Model B Rev 1	7e000000 20000000 02000000	10

yboujraf

Raspberry Pi cpuinfo vs device-tree

My attempt at gathering information on how to detect exactly which Raspberry Pi model we are running on for https://github.com/jperkin/node-rpio. The goal is to come up with an optimal way of detecting the host across a wide range of hardware and OS.

Data

Name (Rev)	cpuinfo	/proc/device-tree/model	device-tree/soc/ranges	OS
B (1.0)	0002	Raspberry Pi Model B	7e000000 20000000 01000000	7
B (1.0)	0002	Raspberry Pi Model B Rev 1	7e000000 20000000 02000000	10

yboujraf

/**
* Convert From/To Binary/Decimal/Hexadecimal in JavaScript
* https://gist.github.com/faisalman
*
* Copyright 2012-2015, Faisalman <[email protected]>
* Licensed under The MIT License
* http://www.opensource.org/licenses/mit-license
*/

(function(){

yboujraf

# Used on Ubuntu 18.04 and 20.04
# Find instructions for other OSes here: https://certbot.eff.org/instructions

# Install Certbot via Snaps
sudo snap install core; sudo snap refresh core
sudo snap install --classic certbot
sudo ln -s /snap/bin/certbot /usr/bin/certbot

# Install DNS CloudFlare plugin
sudo snap set certbot trust-plugin-with-root=ok