andramalech

CircuitPython Secrets

This are some notes around the use of secrets.py in CircuitPython.

Current Events

Today CP examples suggest a secrets.py files for storing passwords, SSIDs, keys, etc as a dictionary.

File: secrets.py

andramalech

using namespace System.Management.Automation
using namespace System.Management.Automation.Language
 
if ($host.Name -eq 'ConsoleHost')
{
    Import-Module PSReadLine
}
#Import-Module PSColors
#Import-Module posh-git
Import-Module -Name Terminal-Icons

andramalech

SSH keypair setup for GitHub (or GitHub/GitLab/BitBucket, etc, etc)

Create a repo.

Make sure there is at least one file in it (even just the README.md)

Generate a SSH key pair (private/public):

ssh-keygen -t rsa -C "[email protected]"

andramalech

Basic Syntax

$ scp source_file_path destination_file_path

Uploading

Single file

andramalech

ssh-cheatsheet

Bash SSH command cheatsheet

Connecting to Remote Host From Local Client

SSH

SSH into a remote server.

andramalech

WireGuard Site-to-Site

Accessing a subnet that is behind a WireGuard client using a site-to-site setup

Problem Summary

We want to access a local subnet remotely, but it is behind a NAT firewall and we can't setup port forwarding. Outgoing connections work, but all incoming connections get DROPPED by the ISP's routing policy.

Solution Summary

andramalech

#!/bin/bash
echo "Password for Samba User 'snippets':"
read -s smb_password_snippets
echo "Password for S3 User 'admin':"
read -s s3_password_admin
echo "Password for S3 User 'dev' (min-length: 8):"
read -s s3_password_dev
echo "Password for S3 User 'api' (min-length: 8):"
read -s s3_password_api
wget -O /usr/local/bin/minio https://dl.min.io/server/minio/release/linux-amd64/minio

andramalech

Running Linux and Windows on M1 with QEMU

30.11.2020: Updated with the new patchseries and instructions for Windows

02.12.2020: Added tweaks

08.12.2020: Updated with patchseries v4

31.01.2020: Updated with patchseries v6

andramalech

#cloud-config
package_upgrade: true

ssh_authorized_keys:
  - <your key>

packages:
  - apt-transport-https
  - ca-certificates
  - curl

andramalech

I woke up, started my laptop, and I got laptop poweroff just after booting. My Carbon X1 (7th generation) is only 2 months
old. Not really best way to start a day.

Solution:

1. Power off your lap top
2. Find this little reset button on the bottom of your laptop
3. Hold for five seconds let go; plug laptop back 
4. Hit power button