dawmster

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

These links no longer work. Springer have pulled the free plug.

Graduate texts in mathematics

duplicates = multiple editions

A Classical Introduction to Modern Number Theory, Kenneth Ireland Michael Rosen

Setting up a Docker container as a DHCP server

In this guide I’ve tested a number of different commands and configurations using Docker to run a container with dhcpd (+macvlan driver) to serve my clients in my home network. In the end i’ll migrate from my Windows 2012 R2 Server running DHCP to a much more lightweight Docker container (7.42 MB in total). Wow.

My home environment:

Firewall (Juniper)
- I’m running IP helper for bootp which in this case means that i relay DHCP requests from various VLANs into one where i've placed my Windows 2012 R2 server. This is also where my container will live. See the FW configuration below:

Using PGP signatures with bitcoin script OP_CHECKDATASIG

Dr. Mark B. Lundeberg, 2018 August 30 bitcoincash:qqy9myvyt7qffgye5a2mn2vn8ry95qm6asy40ptgx2

Since version 2.1, GnuPG is able to use the very same secp256k1 elliptic curve signature algorithm (ECDSA) as used in bitcoin. Quite soon Bitcoin Cash will add a new script opcode OP_CHECKDATASIG that is able to check signatures not just on the containing transaction, but also on arbitrary data. For fun, let's try to intersect the two signature systems and see what can be done!

Background

OP_CHECKDATASIG signatures

ESP-IDF on Ubuntu 20.04.1

This is commands used in youtube video

Commands:

sudo apt update &amp;&amp; sudo apt upgrade -y

	#ifdef _MSC_VER
	#include <boost/config/compiler/visualc.hpp>
	#endif
	#include <boost/property_tree/ptree.hpp>
	#include <boost/property_tree/json_parser.hpp>
	#include <boost/foreach.hpp>
	#include <cassert>
	#include <exception>
	#include <iostream>
	#include <sstream>

	<!DOCTYPE HTML>
	<html lang="en-US">
	<head>
	<meta charset="UTF-8">
	<title>test upload by chunk</title>
	</head>
	<body>
	<input type="file" id="f" />

	<script src="script.js"></script>


	--# Main


	-- Use this function to perform your initial setup
	function setup()
	displayMode(STANDARD)

	availableTests = { Test2(), Test1() }
	currentTest = availableTests[1]

	# OSD/ObjectStore
	# make rocksdb statically
	if(NOT ALLOCATOR STREQUAL "jemalloc")
	set(ROCKSDB_JEMALLOC "DISABLE_JEMALLOC=1")
	endif()

	set(ROCKSDB_EXTRA_CXXFLAG "-fPIC -Wno-unused-variable")
	if(NOT CMAKE_BUILD_TYPE STREQUAL Debug)
	set(ROCKSDB_EXTRA_CXXFLAG "${ROCKSDB_EXTRA_CXXFLAG} -DNDEBUG")
	endif(NOT CMAKE_BUILD_TYPE STREQUAL Debug)

	// Don't forget to prefix your category!

	#import <UIKit/UIKit.h>

	NS_ASSUME_NONNULL_BEGIN

	@interface UIWindow (PSPDFAdditions)

	#if TARGET_OS_UIKITFORMAC