Cloudflare's WARP VPN uses a slightly modified version of the WireGuard protocol, but it remains backwards compatible with the normal WireGuard client software. This means you can connect to it on platforms which don't yet have an official WARP client, e.g. your computer or EdgeOS-based router.
Generate a WireGuard keypair, as usual:
wg genkey | tee private.key | wg pubkey > public.key
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"
| # Here's the script I'll use to demonstrate - it just loops forever: | |
| $ cat test.rb | |
| #!/usr/bin/env ruby | |
| loop do | |
| sleep 1 | |
| end | |
| # Now, I'll start the script in the background, and redirect stdout and stderr |
| class Point | |
| constructor: (@x = 0, @y = 0) -> | |
| if isNaN(@x) or isNaN(@y) | |
| throw new Error('Invalid coords') | |
| add: (point) -> | |
| @x += point.x | |
| @y += point.y | |
| subtract: (point) -> |
Введение
Начать стоит отсюда. Не пугайтесь то, что это книга по незнакомой OS, эти термины практически везде одинаковые и здесь они изложены в понятной для начинающих форме.
http://www.qnx.com/developers/docs/6.4.1/neutrino/getting_started/s1_procs.html
Прочесть нужно треть главы до подраздела "Starting a process", если С не пугает, читайте полностью. После прочтения вы будете понимать, что такое process, thread, mutex, priorites, semaphores, scheduler, contex-switch, kernel states.
Ruby
| class Post < ActiveRecord::Base | |
| attr_accessible :body, :price, :title | |
| validates_presence_of :title | |
| validates_length_of :title, minimum: 10 | |
| validates_presence_of :body | |
| validates_numericality_of :price, greater_than: 0 | |
| end |
| # | |
| # UPDATE for 10.10.4+: please consider this patch obsolete, as apple provides a tool called "trimforce" to enable trim support for 3rd party SSDs | |
| # just run "sudo trimforce enable" to activate the trim support from now on! | |
| # | |
| # Original version by Grant Parnell is offline (http://digitaldj.net/2011/07/21/trim-enabler-for-lion/) | |
| # Update July 2014: no longer offline, see https://digitaldj.net/blog/2011/11/17/trim-enabler-for-os-x-lion-mountain-lion-mavericks/ | |
| # | |
| # Looks for "Apple" string in HD kext, changes it to a wildcard match for anything | |
| # | |
| # Alternative to http://www.groths.org/trim-enabler-3-0-released/ |
| source 'https://rubygems.org' | |
| gem 'sinatra' | |
| gem 'sinatra-contrib', require: 'sinatra/streaming' | |
| group :development do | |
| gem 'thin' | |
| gem 'pry-rails' | |
| end |
| #!/usr/bin/env bash | |
| apt-get -y update | |
| apt-get -y upgrade | |
| apt-get -y install build-essential | |
| apt-get -y install libyaml-dev | |
| apt-get -y install zlib1g-dev libssl-dev | |
| cd /tmp | |
| wget ftp://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-p194.tar.gz | |
| tar -xvzf ruby-1.9.3-p194.tar.gz | |
| cd ruby-1.9.3-p194/ |
