Konstantin L webkonstantin

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics

elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent

Some examples of SNAT, DNAT with iptables with comments

mainly used in start-up script

How to test 'safely'

When we play with iptables aka firewall we might end up in situation, where we execute rule, which has unforseen impact - lock yourself out. Recovering from this situation is necessity.

How to:

Enable reboot via SMS.

Test all commands in shell first before putting them into Start-up script. This way the command will be wiped out, when unit is rebooted.

masquarade all outgoing packets to be WLAN0 IP

#Some discussions on logging from docker: Using logstash Using Papertrail

Issue Loging Drivers

Issue Enhanced Logging

A lot of this boils down to whether you want a single or multi-process (systemd, supervisord etc.) container...

My OS X “VPN only” Setup For #30C3

You should never let passwords or private data be transmitted over an untrusted network (your neighbor’s, the one at Starbucks or the company) anyway, but on a hacker congress like the #30C3, this rule is almost vital.

Hackers get bored easily, and when they’re bored, they’re starting to look for things to play with. And a network with several thousand connected users is certainly an interesting thing to play with. Some of them might start intercepting the data on the network or do other nasty things with the packets that they can get.

If these packets are encrypted, messing with them is much harder (but not impossible! – see the end of this article). So you want your packets to be always encrypted. And the best way to do that is by using a VPN.

Target audience

Never touch your local /etc/hosts file in OS X again

To setup your computer to work with *.test domains, e.g. project.test, awesome.test and so on, without having to add to your hosts file each time.

Requirements

Homebrew
Mountain Lion -> High Sierra

	export const Spring = (x, y, mass, stiffness, viscosity) => ({
	prevX: x,
	prevY: y,
	currX: x,
	currY: y,
	mass, stiffness, viscosity
	});

	Spring.copy = (spring) => ({
	prevX: spring.prevX,

	<?php

	use Eloquent;

	class BaseModel extends Eloquent {

	/**
	* The default connection
	*/
	protected $connection = 'db1-mysql';

	CLIENT/SERVER MODEL
	It is quite simple to build a very basic client/server model using nc. On one console, start nc listening on a specific port for a connection. For example:

	$ nc -l 1234

	nc is now listening on port 1234 for a connection. On a second console (or a second machine), connect to the machine and port being listened on:

	$ nc 127.0.0.1 1234

	There should now be a connection between the ports. Anything typed at the second console will be concatenated to the first, and vice-versa. After the connection has been set up, nc does not really care which side is being used as a ‘server’ and which

	#!/usr/bin/env bash

	# ~/.osx — http://mths.be/osx

	# Ask for the administrator password upfront
	sudo -v

	# Keep-alive: update existing `sudo` time stamp until `.osx` has finished
	while true; do sudo -n true; sleep 60; kill -0 "$$" \|\| exit; done 2>/dev/null &

	/usr/share/zoneinfo/Hongkong
	> Wed Jan 01 2014 00:00:00 GMT+0800 (HKT)
	> Mon Sep 01 2014 00:00:00 GMT+0800 (HKT)

	/usr/share/zoneinfo/Pacific/Easter
	> Wed Jan 01 2014 00:00:00 GMT-0500 (EASST)
	> Mon Sep 01 2014 00:00:00 GMT-0600 (EAST)

	/usr/share/zoneinfo/Pacific/Norfolk
	> Wed Jan 01 2014 00:00:00 GMT+1130 (NFT)