ianthetechie

Twilio Asterisk Secure Trunking HOWTO

This is a short guide on how to set up an encrypted VoIP system using Twilio and Asterisk. I was a little annoyed that just about everything these days still uses unencrypted RTP for media (though just about everyone supports SIP over TLS). So I spent a weekend looking at options, and settled on a totally overkill solution involving Twilio's secure trunking to an Asterisk PBX. While all bets are off once it hits the PSTN, at least you won't be blasting your conversations over the internet in clear text.

ianthetechie

Keybase proof

I hereby claim:

• I am ianthetechie on github.
• I am ianthetechie (https://keybase.io/ianthetechie) on keybase.
• I have a public key ASDdy2kpjq4cdIELhui1sUnQ113bWCf7uBkDAzWipYU1mQo

To claim this, I am signing this object:

ianthetechie

###
# NOTE: This is super WIP and is intended to demonstrate one method of improving concurrency.
###
import io
import os

from sqlalchemy import Column, ForeignKey, Integer, String
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import relationship, scoped_session, sessionmaker
from sqlalchemy import create_engine

ianthetechie

import timeit

loop_count = 100


def concat_strings():
	out_str = ""
	for num in range(loop_count):
		out_str += str(num)
	return out_str

ianthetechie

A short guide on setting up Debian guests in bhyve

I have a problem. I need to run some Docker containers for work. Docker, as you may know, has a design that is tightly coupled to Linux. This is rather unfortunate since my desktop is running FreeBSD, and my laptop is running its distant cousin, macOS. Normally I'd just do such things on my Mac, but 1) my desktop has a lot more storage, and 2) the Docker images in question are amd64 already. Also I just wanted a challenge, so let's set up a VM to run Docker on FreeBSD.

Aside in case you're wondering why Docker runs on your Mac: Docker Desktop actually ships a hypervisor,

ianthetechie

#!/bin/zsh

# Clears environment variables set by Xcode by taking a whitelist approach.
# We only need our HOME and PATH, as well as the ACTION and CONFIGURATION set by Xcode
env -i HOME="$HOME" PATH="$PATH" ACTION="$ACTION" CONFIGURATION="$CONFIGURATION" \
  /bin/zsh -l -c "$(cat <<-'END_OF_SCRIPT'
    # Function to perform a clean build
    clean_build() {
      echo "Cleaning..."
      cargo clean

ianthetechie

{"routes":[{"weight_name":"auto","weight":462.665,"duration":182.357,"distance":1718.205,"legs":[{"via_waypoints":[],"admins":[{"iso_3166_1_alpha3":"USA","iso_3166_1":"US"}],"weight":462.665,"duration":182.357,"steps":[{"bannerInstructions":[{"primary":{"type":"end of road","modifier":"right","text":"John F. Kennedy Boulevard","components":[{"text":"John F. Kennedy Boulevard","type":"text"},{"text":"/","type":"delimiter"},{"text":"CR 501","type":"text"}]},"distanceAlongGeometry":64.13}],"intersections":[{"classes":["restricted"],"entry":[true],"bearings":[151],"duration":16.247,"admin_index":0,"out":0,"weight":18.684,"geometry_index":0,"location":[-74.031614,40.775707]},{"entry":[false,true,false,false],"classes":["restricted"],"in":3,"bearings":[121,175,239,331],"duration":3.995,"turn_weight":15,"turn_duration":0.035,"admin_index":0,"out":1,"weight":19.554,"geometry_index":1,"location":[-74.031354,40.775349]},{"bearings":[63,159,244,355],"entry":[false,true,false,false],"classes":["restricted"],"in":3,"turn_

ianthetechie

{
  "routes": [
    {
      "voiceLocale": "en-US",
      "weight_name": "bicycle",
      "weight": 1871.817,
      "duration": 845.521,
      "distance": 3716.66,
      "legs": [
        {