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On shoulders of giants.

Carlos Guerrero guerrerocarlos

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On shoulders of giants.
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@guerrerocarlos
guerrerocarlos / deploy.sh
Created June 4, 2021 12:36 — forked from jed/deploy.sh
Using AWS CloudFormation to deploy an edge lambda
#!/bin/sh
aws cloudformation deploy \
--template-file stack.yaml \
--stack-name edge-lambda-test \
--capabilities CAPABILITY_IAM \
--parameter-overrides Nonce=$RANDOM
@guerrerocarlos
guerrerocarlos / vpc-fargate.yaml
Created June 17, 2021 15:00 — forked from lizrice/vpc-fargate.yaml
Cloudformation template for setting up VPC and subnets for Fargate
# Usage:
# aws cloudformation --region <region> create-stack --stack-name <stack name> --template-body file://vpc-fargate.yaml
# This template will:
# Create a VPC with:
# 2 Public Subnets
# 2 Private Subnets
# An Internet Gateway (with routes to it for Public Subnets)
# A NAT Gateway for outbound access (with routes from Private Subnets set to use it)
#
@guerrerocarlos
guerrerocarlos / change-codec.md
Created July 7, 2021 17:33 — forked from dvf/change-codec.md
Enable High Quality mode on your headphones (Updated for macOS Catalina)

If you're using a high-end bluetooth headset on your Macbook Pro it's likely your mac is using an audio codec which favors battery efficiency over high quality. This results in a drastic degradation of sound, the SBC codec is the likely culprit, read more about it here.

Find out what codec you're using

  1. Play a song on your headphones
  2. Option (⌥) click the Bluetooth button at the top of your screen Inspect the Bluetooth Coded
  3. If you're using AAC or aptX, you can stop here—those are the highest quality codecs.

Change your codec to AAC or aptX

@guerrerocarlos
guerrerocarlos / ca.md
Created August 14, 2021 16:59 — forked from soarez/ca.md
How to setup your own CA with OpenSSL

How to setup your own CA with OpenSSL

For educational reasons I've decided to create my own CA. Here is what I learned.

First things first

Lets get some context first.

@guerrerocarlos
guerrerocarlos / webcryptoapi.html
Created August 14, 2021 17:28 — forked from deiu/webcryptoapi.html
Web Crypto API example: RSA keygen & export & import & sign & verify & encrypt & decrypt
<!-- MIT License -->
<html>
<head>
<script>
function generateKey(alg, scope) {
return new Promise(function(resolve) {
var genkey = crypto.subtle.generateKey(alg, true, scope)
genkey.then(function (pair) {
resolve(pair)
})
@guerrerocarlos
guerrerocarlos / iam-policy.json
Created January 12, 2022 18:31 — forked from quiver/iam-policy.json
How to connect to Amazon RDS PostgreSQL with IAM credentials
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"rds-db:connect"
],
"Resource": [
"arn:aws:rds-db:region:account-id:dbuser:dbi-resource-id/database-user-name"
@guerrerocarlos
guerrerocarlos / nodejs-https-requests.js
Created April 6, 2022 14:52 — forked from rajinder-yadav/nodejs-https-requests.js
Node.js making a HTTPS request with GET and POST
const https = require('https');
async function httpsGet(hostname, path, headers) {
return new Promise(async (resolve, reject) => {
const options = {
hostname: hostname,
path: path,
port: 443,
method: 'GET',
@guerrerocarlos
guerrerocarlos / new_peer.sh
Created June 13, 2022 16:51 — forked from joneskoo/new_peer.sh
Wireguard client/server config generator
#!/bin/bash
set -eu
set -o pipefail
dns_server=172.24.100.250
client_ip=$1
psk=$(wg genpsk)
client_privkey=$(wg genkey)
client_pubkey=$(wg pubkey <<<"$client_privkey")
@guerrerocarlos
guerrerocarlos / setup_wireguard.md
Created October 13, 2022 17:46 — forked from komuw/setup_wireguard.md
setup wireguard vpn
@guerrerocarlos
guerrerocarlos / wireguard.conf
Created October 13, 2022 17:47 — forked from nealfennimore/wireguard.conf
Wireguard VPN - Forward all traffic to server
# ------------------------------------------------
# Config files are located in /etc/wireguard/wg0
# ------------------------------------------------
# ---------- Server Config ----------
[Interface]
Address = 10.10.0.1/24 # IPV4 CIDR
Address = fd86:ea04:1111::1/64 # IPV6 CIDR
PostUp = iptables -A FORWARD -i wg0 -j ACCEPT; iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE; ip6tables -A FORWARD -i wg0 -j ACCEPT; ip6tables -t nat -A POSTROUTING -o eth0 -j MASQUERADE # Add forwarding when VPN is started
PostDown = iptables -D FORWARD -i wg0 -j ACCEPT; iptables -t nat -D POSTROUTING -o eth0 -j MASQUERADE; ip6tables -D FORWARD -i wg0 -j ACCEPT; ip6tables -t nat -D POSTROUTING -o eth0 -j MASQUERADE # Remove forwarding when VPN is shutdown