jasdeepkhalsa

From: http://www.chromium.org/developers/design-documents/network-stack/socks-proxy

To configure chrome to proxy traffic through the SOCKS v5 proxy server myproxy:8080, launch chrome with these two command-line flags:

--proxy-server="socks5://myproxy:8080"
--host-resolver-rules="MAP * 0.0.0.0 , EXCLUDE myproxy"

The first thing to check when debugging is look at the Proxy tab on about:net-internals, and verify what the effective proxy settings are:
  chrome://net-internals/#proxy

sivel

Better SSH Authorized Keys Management

A seemingly common problem that people encounter is how to handle all of your users authorized_keys file.

People struggle over management, ensuring that users only have specific keys in the authorized_keys file or even a method for expiring keys. A centralized key management system could help provide all of this functionality with a little scripting.

One piece of functionality overlooked in OpenSSH is the AuthorizedKeysCommand configuration keyword. This configuration allows you to specify a command that will run during login to retrieve a users public key file from a remote source and perform validation just as if the authorized_keys file was local.

Here is an example directory structure for a set of users with SSH public keys that can be shared out via a web server:

ktheory

# /tmp/test = EBS-SSD
# /mnt/test = instance-store

root@ip-10-0-2-6:~# dd bs=1M count=256 if=/dev/zero of=/tmp/test
256+0 records in
256+0 records out
268435456 bytes (268 MB) copied, 3.26957 s, 82.1 MB/s
root@ip-10-0-2-6:~# dd bs=1M count=256 if=/dev/zero of=/tmp/test
256+0 records in
256+0 records out

maxim

#!/usr/bin/env ruby

require 'yaml'

PLAYS_DIR = '.'
ROLES_DIR = './roles'

def deps_of(role)
  dep_path = File.join(ROLES_DIR, "#{role}/meta/main.yml")
  File.exists?(dep_path) ? (YAML.load_file(dep_path)['dependencies'] || []) : []

hkhamm

Installing Cassandra on Mac OS X

Install Homebrew

Homebrew is a great little package manager for OS X. If you haven't already, installing it is pretty easy:

ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"

richarvey

#!/usr/bin/env python3

import boto3, argparse

parser = argparse.ArgumentParser()
parser.add_argument('-b','--bucket', help='Name of your S3 Bucket', required=True)
parser.add_argument('-o','--object', help='Name of the object + prefix in your bucket', required=True)
parser.add_argument('-t','--time', type=int, help='Expirery in seconds Default = 60', default=60)
args =  vars(parser.parse_args())

infernix

---
- name: Reboot a host and wait for it to return
  hosts: somehost
  remote_user: root
  tasks:
    # Send the reboot command
    - shell: shutdown -r now

    # This pause is mandatory, otherwise the existing control connection gets reused!
    - pause: seconds=30

sr75

http://d.stavrovski.net/blog/post/how-to-install-and-setup-oracle-java-jdk-in-centos-6

# rpm
wget --no-cookies \
--no-check-certificate \
--header "Cookie: oraclelicense=accept-securebackup-cookie" \
"http://download.oracle.com/otn-pub/java/jdk/7u55-b13/jdk-7u55-linux-x64.rpm" \
-O jdk-7-linux-x64.rpm

# ubuntu

dfarrell-bloom

#!/usr/bin/python

# Quick and dirty demonstration of CVE-2014-0160 by Jared Stafford ([email protected])
# The author disclaims copyright to this source code.

import sys
import struct
import socket
import time
import select

OnlyInAmerica

# Find the IAM username belonging to the TARGET_ACCESS_KEY
# Useful for finding IAM user corresponding to a compromised AWS credential

# Requirements:
#
# Environmental variables: 
# 		AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY
# python: 
#		boto