L-P

Description

This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.

The script is here:

#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"

Results

Nginx FastCGI response buffer sizes

By default when Nginx starts receiving a response from a FastCGI backend (such as PHP-FPM) it will buffer the response in memory before delivering it to the client. Any response larger than the set buffer size is saved to a temporary file on disk.

This process is outlined at the Nginx ngx_http_fastcgi_module page manual page.

Introduction
Determine actual FastCGI response sizes
Setting the buffer size
Verifying results

HTTP Streaming (or Chunked vs Store & Forward)

The standard way of understanding the HTTP protocol is via the request reply pattern. Each HTTP transaction consists of a finitely bounded HTTP request and a finitely bounded HTTP response.

However it's also possible for both parts of an HTTP 1.1 transaction to stream their possibly infinitely bounded data. The advantages is that the sender can send data that is beyond the sender's memory limit, and the receiver can act on

	def point_in_polygon?(polygonPoints)
	return false if self.latitude.blank? or self.longitude.blank?
	polygonPoints.each do \|point\|
	point[0] = point[0].to_f
	point[1] = point[1].to_f
	end

	contains_point = false
	i = -1
	j = polygonPoints.size - 1

	#!/bin/sh
	# UFW blocks for China, Korea, Malaysia, Phillipines, Singapore, Thailand and Vietnam netblocks
	# Based on http://www.wizcrafts.net/chinese-iptables-blocklist.html

	# Cambodia (KH)
	ufw deny from 114.134.184.0/21 to any port 22

	# Chinese (CN) IP addresses follow:
	ufw deny from 1.192.0.0/13 to any port 22
	ufw deny from 1.202.0.0/15 to any port 22

	// Creating a node graph editor for Dear ImGui
	// Quick sample, not production code!
	// This is quick demo I crafted in a few hours in 2015 showcasing how to use Dear ImGui to create custom stuff,
	// which ended up feeding a thread full of better experiments.
	// See https://github.com/ocornut/imgui/issues/306 for details

	// Fast forward to 2023, see e.g. https://github.com/ocornut/imgui/wiki/Useful-Extensions#node-editors

	// Changelog
	// - v0.05 (2023-03): fixed for renamed api: AddBezierCurve()->AddBezierCubic().

	// ImGui - standalone example application for Glfw + OpenGL 3, using programmable pipeline

	#include <imgui.h>
	#include "imgui_impl_glfw_gl3.h"
	#include <stdio.h>
	#include <GL/gl3w.h>
	#include <GLFW/glfw3.h>
	#include <math.h>
	#include <string.h>
	#include <vector>

	###
	###
	### UPDATE: For Win 11, I recommend using this tool in place of this script:
	### https://christitus.com/windows-tool/
	### https://github.com/ChrisTitusTech/winutil
	### https://www.youtube.com/watch?v=6UQZ5oQg8XA
	### iwr -useb https://christitus.com/win \| iex
	###
	###

	# to generate your dhparam.pem file, run in the terminal
	openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048