todgru

I created a bootable usb drive in disk utility

then ran diskutil list to find the identifier

/dev/disk2s1 in my case

make sure to unmount the drive

then dd

todgru

raspberry pi auto mount usb drive

my drive is hfsplus usb 2TB

get the usb UUID from blkid

pretty print drive locations lsblk -o NAME,FSTYPE,SIZE,MOUNTPOINT,LABEL

followed this, with special attention to the order. Drive must be unmounted before running fsck.

todgru

Installing Emby on a Raspberry Pi 3

note: this is probably not a good idea if any of the media need transcoding.

another note: was able to install the open source verion of Emby called JellyFin, using Docker: https://hub.docker.com/r/jellyfin/jellyfin

dependencies

https://www.mono-project.com/download/stable/#download-lin-debian

sudo apt install apt-transport-https dirmngr

todgru

Foward requests to one port to another on the same server

I wanted to forward requests comming to a server on port 2222 to the same server port 22.

I'm using ufw for the firewall on the server.

1. allow port 22 and 2222 on the server.

$ sudo ufw allow 22

todgru

Local DNS dnsmasq

Use case

I wanted to have an outside domain name resolve to a computer inside my local private network. I am tyring out duckdns.org to handle the resolution. The DNS resolves fine outside of my local network, yet locally the fqdn will not resolve. To enable this, a local dns needs to handle the request, routing to the local server.

This is where the raspberry pi dns comes in. I'm running Raspbian GNU/Linux 9 (stretch), a Debian variant. http://www.raspbian.org/

NOTE

I have been unable to get dnsmasq to start correctly on reboot. Nothing stands out in daemon.log. sudo service dnsmasq status shows one particular line that is different from the status of a reboot vs a manual service restart:

todgru

# modified version of:
# wget https://gist.githubusercontent.com/samatjain/4dda24e14a5b73481e2a/raw/5d9bac8ec40b94833b4e9938121945be252fdee1/Slim-Raspbian.sh -O Slim-Raspbian.sh

# GUI-related packages
# none right now...
# Edu-related packages
pkgs="
oracle-java8-jdk
minecraft-pi 
python-minecraftpi

ServerlessBot

{
    "Statement": [
        {
            "Action": [
                "apigateway:*",
                "cloudformation:CancelUpdateStack",
                "cloudformation:ContinueUpdateRollback",
                "cloudformation:CreateChangeSet",
                "cloudformation:CreateStack",
                "cloudformation:CreateUploadBucket",

afeish

location /__special {
  internal;
  allow all;
  root   /usr/share/nginx/html/__special;
}

location = /__md_file {
  internal;
  allow all;

wyllie

#!/usr/bin/env bash

INI_FILE=~/.aws/credentials

while IFS=' = ' read key value
do
    if [[ $key == \[*] ]]; then
        section=$key
    elif [[ $value ]] && [[ $section == '[default]' ]]; then
        if [[ $key == 'aws_access_key_id' ]]; then

gboudreau

Generating Authy passwords on other authenticators

---

*update: TBC, but this new might affect how easy it is to use this technique past August 2024: Authy is shutting down its desktop app | The 2FA app Authy will only be available on Android and iOS starting in August

---

This gist, based in part on a gist by Brian Hartvigsen, allows you to export from Authy your TOTP tokens you have stored there.
Those can be "standard" 6-digits / 30 secs tokens, or Authy's own version, the 7-digits / 10 secs tokens.