Adam Ramadhan adamramadhan

# Resize the file system in UI, under VM -> Hardware -> Click on the disk to resize, click "Resize disk" button

# Confirm increase in disk space (1TB in my case)
$ lsblk
NAME                      MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
sda                         8:0    0    1T  0 disk
├─sda1                      8:1    0    1M  0 part
├─sda2                      8:2    0    1G  0 part /boot
└─sda3                      8:3    0    1T  0 part

FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.

Effective Engineer - Notes

By Edmond Lau
Highly Recommended 👍
http://www.theeffectiveengineer.com/

What's an Effective Engineer?

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:

One-line Tree in Python

Using Python's built-in defaultdict we can easily define a tree data structure:

def tree(): return defaultdict(tree)

That's it!

NOTE: This documentation has been put here because I couldn't find it anywhere else. I am not associated with Crunchbase in any way. I cannot help you with your Crunchbase API problems. If you need help try here: https://groups.google.com/forum/#!forum/crunchbase-api

CrunchBase API v1 Documentation

Overview

The CrunchBase API provides JSON representations of the data found on CrunchBase. The API currently supports three actions: "show", "search", and "list", which are each described below.

	#!/bin/bash

	# https://gist.github.com/Jamesits/944ab9a484ad34522f6c4bce8d085132
	# Captures every IP-CIDR notation in HTML file
	# then convert it to RouterOS IP List format
	# Usage: convert.sh source-file.html List-Name
	# Then use /import file-name=List-Name.scr to
	# import this list on RouterOS
	# You can save bgp.he.net search result as HTML
	# then use this script to convert.

	// Least-recently used (LRU) queue device in Node.js

	var startClientsAndWorkersNowait = true
	, terminate = 'skip'; // 'immediately', 'later', 'skip'

	var numberOfClients = 10
	, numberOfWorkers = 3;

	var zmq = require('zmq')
	, frontend = zmq.socket('router')

	var fs = require('fs');

	// Bind to receiving of data
	exports.hook_data = function( next, connection, params ) {

	var haraka = this,
	uid = connection.transaction.uuid;

	connection.transaction.notes.attachments = {};

	## Configure eth0
	#
	# vi /etc/sysconfig/network-scripts/ifcfg-eth0

	DEVICE="eth0"
	NM_CONTROLLED="yes"
	ONBOOT=yes
	HWADDR=A4:BA:DB:37:F1:04
	TYPE=Ethernet
	BOOTPROTO=static