Vít Pavlík okurka12

Enable key-only SSH authentication

Caution

Only do this AFTER you verified you can authenticate with you SSH key.

Open the config file:

sudo nano /etc/ssh/sshd_config

Following steps are for starting a PostgreSQL database locally on your machine and accessing it as a postgres user.

sudo apt install postgresql

	#!/bin/bash
	#
	# sudo apt install aspell aspell-cs
	#
	# takes around 10 s to run
	#

	FILE=words.py

	# $!s each line except last one

	//*
	//* run a rexx script as a job (output to spool)
	//*
	//*
	//RXTEST JOB 'REXX SCRIPT',CLASS=A,MSGCLASS=X
	//* ^ specify job name here
	//*
	//STEP1 EXEC PGM=IKJEFT01,DYNAMNBR=20
	//SYSTSPRT DD SYSOUT=*
	//*

	/* low-quality image placeholder */
	/* author: Vit Pavlik, August 2025 */
	/* succesfully deployed on https://vitapavlik.cz/fekt_mapa */
	const levels = [
	"static/img-lowest/",
	"static/img-lower/",
	"static/img-moderate/"
	]

	function img_upgrade_quality(event) {

	#
	# WIREGUARD SERVER CONFIG FOR SERVERS WITH IPV6
	# ---------------------------------------------
	#
	# date of creation: february 2025
	# updated: august 2025
	# file name: /etc/wireguard/wg0.conf
	# file mode: 600 - important! keys are stored here!!!
	#
	# prerequisites:


	<!DOCTYPE html>
	<html lang="en">
	<head>
	<!-- credits to chatgpt -->
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Farewell</title>
	<style>
	body {

	#!/bin/bash

	#
	# convert mp4 video to gif and optionally remove green background
	#

	# created: early 2025
	# ffmpeg version 5.1.6-0+deb12u1
	# ImageMagick 6.9.11-60

	#!/bin/bash
	#
	# Generate a key-pair of PGP keys using gpg
	# -----------------------------------------
	# ...a small wrapper around gpg
	# ...date of creation: April 2025
	# ...author: okurka12
	#
	#
	# How it works

	#
	# IPK25chat client TCP stream test
	# author: vita v22.0
	# date: 13. 4. 2025
	# python 3.13.0
	#
	import socket

	ADDRESS = "127.0.0.1"
	PORT = 4567