Radu Potop radupotop

How to record multiple applications and microphone into one audio file on Linux

Step 0. Terminology

Sinks are for output, sources are for input. To stream source to sink a loopback must be created. More shall you find there.

Step 1. Create output sink that will be recorded

Our output sink will be named recording.

pacmd load-module module-null-sink sink_name=recording sink_properties=device.description=recording

Arch Linux Installation

LVM on LUKS Arch installation with systemd-boot

Sources:

Note: If you want a simpler encryption setup (with LUKS only), you can instead use the archinstall "guided" installer included with Arch since April 2021.

Redis is Database whereas RabbitMQ was designed as a message router or message-orientated-middleware (mom), so I'm sure if you look for benchmarks, you'll find that RabbitMQ will outperform Redis when it comes to message routing.

RabbitMQ is written in Erlang which was specifically designed by the telecom industry to route messages, you get clustering out of the box due to it being written in Erlang which means in a clustered environment, RabbitMQ will outperform Redis even further.

Furthermore, you get guaranteed delivery of messages due to the AMQP protocol, in other words, if the network drops while consuming the message, the consumer won't be able to say thanks for the message, so the consumer will drop the message and Rabbit will requeue the message, if you publish a message and the queue didn't say thanks to the publisher due to network problems or timeouts, Rabbit will drop the message and the publisher will keep on trying to publish the message. You can have publish retries with backoff policies, so

Re-Generate Migration

To merge exist migration files into one file:

Remove django_migration records table (manually)
Remove all migration files
run python manage.py migrate --fake command
run python manage.py makemigrations command
run python manage.py migrate --fake-initial command
run python manage.py migrate contenttypes command

	# ------------------------------------------------
	# 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

	# create new (empty) log files after rotating old ones
	create

	# use date as a suffix of the rotated file
	dateext

	compress
	compresscmd /bin/zstd
	compressext .zst
	compressoptions -18 -T0 --rm

	#!/usr/bin/env bash
	#
	# Author: Markus (MawKKe) [email protected]
	# Date: 2018-03-19
	#
	#
	# What?
	#
	# Linux dm-crypt + dm-integrity + dm-raid (RAID1)
	#

	{
	"type": "transaction.created",
	"data": {
	"id": "tx_00009TnTFcG7cG6bxxxxxx",
	"created": "2018-02-19T17:32:03.234Z",
	"description": "pot_00009Qoyee0RPU0sxxxxxx",
	"amount": -40000,
	"fees": {},
	"currency": "GBP",
	"merchant": null,

	# POST a JSON file and redirect output to stdout
	wget -q -O - --header="Content-Type:application/json" --post-file=foo.json http://127.0.0.1

	# Download a complete website
	wget -m -r -linf -k -p -q -E -e robots=off http://127.0.0.1

	# But it may be sufficient
	wget -mpk http://127.0.0.1

	# Download all images of a website