Mikhail S. Qteb

How to setup Let's Encrypt for Nginx on Ubuntu 18.04 (including IPv6, HTTP/2 and A+ SLL rating)

Virtual hosts

Let's say you want to host domains first.com and second.com.

Create folders for their files:

git clone https://github.com/certbot/certbot /opt/letsencrypt

ln -s /opt/letsencrypt/certbot-auto /usr/bin/certbot

certbot certonly --expand --agree-tos --text --non-interactive \
 --standalone \

The Autonomous Agent Prompting Framework

This repository contains a disciplined, evidence-first prompting framework designed to elevate an Agentic AI from a simple command executor to an Autonomous Principal Engineer.

The philosophy is simple: Autonomy through discipline. Trust through verification.

This framework is not just a collection of prompts; it is a complete operational system for managing AI agents. It enforces a rigorous workflow of reconnaissance, planning, safe execution, and self-improvement, ensuring every action the agent takes is deliberate, verifiable, and aligned with senior engineering best practices.

I also have Claude Code prompting for your reference: https://gist.github.com/aashari/1c38e8c7766b5ba81c3a0d4d124a2f58

	#!/bin/bash

	JAILS=`fail2ban-client status \| grep "Jail list" \| sed -E 's/^[^:]+:[ \t]+//' \| sed 's/,//g'`
	for JAIL in $JAILS
	do
	fail2ban-client status $JAIL
	done

	# allow pbcopy \| pbpase on OSX
	set-option -g default-command "reattach-to-user-namespace -l zsh"

	# set colours
	set -g default-terminal "screen-256color"

	# use ctrl+a rather than ctrl+b (capslock == ctrl)
	unbind C-b
	set-option -g prefix C-a
	bind C-a send-prefix

	#!/bin/bash
	TARGET="mysite.example.net";
	RECIPIENT="[email protected]";
	DAYS=7;
	echo "checking if $TARGET expires in less than $DAYS days";
	expirationdate=$(date -d "$(: \| openssl s_client -connect $TARGET:443 -servername $TARGET 2>/dev/null \
	\| openssl x509 -text \
	\| grep 'Not After' \
	\|awk '{print $4,$5,$7}')" '+%s');
	in7days=$(($(date +%s) + (86400*$DAYS)));

	import argparse

	CONSOLE_ARGUMENTS = None

	def test():
	print(CONSOLE_ARGUMENTS.color_enabled)


	def main():
	parser = argparse.ArgumentParser(description='test script with global argparse')

	# This file contains common pin mappings for the BIGTREETECH SKR mini
	# E3 v1.2. To use this config, the firmware should be compiled for the
	# STM32F103 with a "28KiB bootloader". Also, select "Enable extra
	# low-level configuration options" and configure "GPIO pins to set at
	# micro-controller startup" to "!PC13".

	# The "make flash" command does not work on the SKR mini E3. Instead,
	# after running "make", copy the generated "out/klipper.bin" file to a
	# file named "firmware.bin" on an SD card and then restart the SKR
	# mini E3 with that SD card.

	# Specs:
	# - SKR 1.2 Pro
	# - TMC2209
	# - 1.8 stepper on XYZ
	# - Dual Z
	# - BLTouch
	# - Sensorless homing on X
	# - Physical endstops on Y
	# - BMG extruder with 1.8 stepper
	# - e3d Volcano with 12V 40 watts heater