kleo

Let's Encrypt SSL with Cloudflare DNS Validation

Requirements Recap

✅ Your Requirements:

🔒 Ports 80/443 are firewalled to Cloudflare IPs only
☁️ You're behind Cloudflare, so Let's Encrypt (Certbot) cannot reach port 80 directly
🌐 You're using Apache, not Nginx
You already have a self-signed or manually managed cert in use

usbmount (also ntfs) for Raspberry PI 4b - Raspberry PI OS lite 32 (headless)

1. Install OS

Download and install "Raspberry Pi Imager" from https://www.raspberrypi.org/software/

Choose "Raspberry PI OS Lite 32" Press Ctrl+Shift+X

Maybe switch to save always

Quick examples

feat: new feature
fix(scope): bug in scope
feat!: breaking change / feat(scope)!: rework API
chore(deps): update dependencies

Commit types

build: Changes that affect the build system or external dependencies (example scopes: gulp, broccoli, npm)
ci: Changes to CI configuration files and scripts (example scopes: Travis, Circle, BrowserStack, SauceLabs)
chore: Changes which doesn't change source code or tests e.g. changes to the build process, auxiliary tools, libraries

HP Smart Storage Admin CLI (`ssacli`) installation and usage on Proxmox PVE (6.x)

Why use HP Smart Storage Admin CLI?

You can use ssacli (smart storage administrator command line interface) tool to manage any of supported HP Smart Array Controllers in your Proxmox host without need to reboot your server to access Smart Storage Administrator in BIOS. That means no host downtime when managing your storage.

CLI is not as convenient as GUI interface provided by BIOS or desktop utilities, but still allows you to fully manage your controller, physical disks and logical drives on the fly with no Proxmox host downtime.

ssacli replaces older hpssacli, but shares the same syntax and adds support for newer servers and controllers.

Installation

Encrypted Btrfs storage setup and maintenance guide

Initial setup with LUKS/dm-crypt

This exemplary initial setup uses two devices /dev/sdb and /dev/sdc but can be applied to any amount of devices by following the steps with additional devices.

Create keyfile:

dd bs=64 count=1 if=/dev/urandom of=/etc/cryptkey iflag=fullblock
chmod 600 /etc/cryptkey

Physical layer

The dongle itself is sending out data using 802.11a (5 GHz WiFi) with OFDM and 6 Mbit/s data rate:

Radiotap Header v0, Length 38
    Header revision: 0
    Header pad: 0
    Header length: 38
    Present flags

The RSS Endpoint List

Please refer to this blogpost to get an overview.

Replace *-INSTANCE with one of the public instances listed in the scrapers section. Replace CAPITALIZED words with their corresponding identifiers on the website.

Social Media

Twitter

Update: As of 11 January 2022, git.io no longer accepts new URLs.

Command:

curl https://git.io/ -i -F "url=https://github.com/YOUR_GITHUB_URL" -F "code=YOUR_CUSTOM_NAME"

URLs that can be created is from:

https://github.com/*
https://*.github.com

	docker run -ti --rm --mount src=kali-root,dst=/root --mount src=kali-postgres,dst=/var/lib/postgresql my-kali
	#
	# Notes to setup/run a persistent kali docker container (my notes to setup on my usual windows work PC)
	# credit to @Airman604
	# https://medium.com/@airman604/kali-linux-in-a-docker-container-5a06311624eb
	# https://hub.docker.com/r/kalilinux/kali-linux-docker/
	# https://www.kali.org/news/official-kali-linux-docker-images/
	# https://hub.docker.com/?ref=login&overlay=onboarding
	# Setup Docker Desktop for Windows
	# Requires Windows10 Pro and Hyper-V

	image: an-image-with-docker-and-docker-compose

	variables:
	DOCKER_TLS_VERIFY: "1"
	DOCKER_CERT_PATH: ".docker"

	before_script:
	- mkdir -p $DOCKER_CERT_PATH
	- echo "$DOCKER_CA" > $DOCKER_CERT_PATH/ca.pem
	- echo "$DOCKER_CERT" > $DOCKER_CERT_PATH/cert.pem