Christopher cjbischoff

#Mac OS X

Apps

Secure private web server with NodeJS

This article will explain how to set up a secure web server with NodeJS which only accepts connection from users with SSL certificates that you have signed. This is an efficient way to ensure that no other people are able to access the web server, without building a login system which will be significantly weaker.

I will not explain how to create a certificate authority (CA), create certificates or sign them. If you need to read up on this, have a look at this excelent article on how to do it with OpenSSL (Mac and Linux): https://help.ubuntu.com/community/OpenSSL#Practical_OpenSSL_Usage It is also possible to do this on a Mac with the keychain application, and I assume it is possible on a Windows machine aswell.

This architecture will allow you to have one web server communicating with an array of trusted clients, the web server itself can be on the public internet, that will not decrease the level of security, but it will only ser

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

303 See Other

Location: https://github.com/wsargent/docker-cheat-sheet

Hi there!

The docker cheat sheet has moved to a Github project under https://github.com/wsargent/docker-cheat-sheet.

Please click on the link above to go to the cheat sheet.

I was tired of Chrome eating all my laptop resources so I decided to put some limit to it with cgroup.

As I was using Ubuntu 12.04 with support for cgroup, I installed the package cgroup-bin and add the following group to the file /etc/cgconfig.conf:

group browsers {
    cpu {
#       Set the relative share of CPU resources equal to 25%
        cpu.shares = "256";
 }

	Latency Comparison Numbers (~2012)
	----------------------------------
	L1 cache reference 0.5 ns
	Branch mispredict 5 ns
	L2 cache reference 7 ns 14x L1 cache
	Mutex lock/unlock 25 ns
	Main memory reference 100 ns 20x L2 cache, 200x L1 cache
	Compress 1K bytes with Zippy 3,000 ns 3 us
	Send 1K bytes over 1 Gbps network 10,000 ns 10 us
	Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD

	# ~/.osx — http://mths.be/osx

	###############################################################################
	# General UI/UX #
	###############################################################################

	# Set computer name (as done via System Preferences → Sharing)
	scutil --set ComputerName "MathBook Pro"
	scutil --set HostName "MathBook Pro"
	scutil --set LocalHostName "MathBook-Pro"

	building openstack lab:

	There are a few dependencies:

	- ruby, virtualbox, ubuntu precise base box, vagrant, puppet modules, librarian-puppet

	find the module on stackforge:

	> git clone https://github.com/stackforge/puppet-openstack_dev_env

	#!/bin/bash
	# Sometimes you need to move your existing git repository
	# to a new remote repository (/new remote origin).
	# Here are a simple and quick steps that does exactly this.
	#
	# Let's assume we call "old repo" the repository you wish
	# to move, and "new repo" the one you wish to move to.
	#
	### Step 1. Make sure you have a local copy of all "old repo"
	### branches and tags.

	# Updated for Ruby 2.3
	string_t = None

	def get_rstring(addr):
	s = addr.cast(string_t.pointer())
	if s['basic']['flags'] & (1 << 13):
	return s['as']['heap']['ptr'].string()
	else:
	return s['as']['ary'].string()