Boa Ho Man aranair

What to Expect and Tips

• 45-minute systems interview, focus on responding to real world problems with an unhealthy service, such as a web server or database. The interview will start off at a high level troubleshooting a likely scenario, dig deeper to find the cause and some possible solutions for it. The goal is to probe your knowledge of systems at scale and under load, so keep in mind the challenges of the Facebook environment.
• Focus on things such as tooling, memory management and unix process lifecycle.

Systems

More specifically, linux troubleshooting and debugging. Understanding things like memory, io, cpu, shell, memory etc. would be pretty helpful. Knowing how to actually write a unix shell would also be a good idea. What tools might you use to debug something? On another note, this interview will likely push your boundaries of what you know (and how to implement it).

Design/Architecture

Interview is all about taking an ambiguous question of how you might build a system and letting

Create Root CA (Done once)

Create Root Key

Attention: this is the key used to sign the certificate requests, anyone holding this can sign certificates on your behalf. So keep it in a safe place!

openssl genrsa -des3 -out rootCA.key 4096

Keybase proof

I hereby claim:

I am aranair on github.
I am aranair (https://keybase.io/aranair) on keybase.
I have a public key whose fingerprint is AB63 5704 AEE9 3D67 88CF 1260 BFCD 4DDE 5E06 7455

To claim this, I am signing this object:

 {
   "token": "[token]",
   "job": "notifySlack",
   "ref": "refs/pull/4/merge",
   "sha": "[shad]",
   "repository": "colbyfayock/demo-github-actions",
   "repository_owner": "colbyfayock",
   "repositoryUrl": "git://github.com/colbyfayock/demo-github-actions.git",
   "run_id": 120667610,
   "run_number": "2",

	#!/bin/bash
	#
	# Use LibreOffice to convert Word .doc/x files to PDF in the current,
	# or relative directory location, unless --outdir option used (see below).
	# Tested: macOS Sierra 10.12.3
	# Version: 1.2
	# VikingOSX, 2017-02-02, Apple Support Communities
	# https://discussions.apple.com/thread/7848497
	#
	Usage () {

	# !/bin/bash
	#
	# Usage:
	# 1. Copy the JSON from Grafana -> Export as JSON -> Clipboard
	# 2. ./prepare_dashboard.sh new_dashboard_xxx
	# - This will create new_dashboard_xxx-dashboard.json
	#

	DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

	#!/bin/bash

	while true; do
	YEAR=`date +%Y`
	MONTH=`date +%m`
	DAY=`date +%d`
	HOUR=`date +%H`
	MINUTE=`date +%M`

	ARR=$(pidof "Passenger NodeApp: /srv/factory" \| tr " " "\n")

	=Navigating=
	visit('/projects')
	visit(post_comments_path(post))

	=Clicking links and buttons=
	click_link('id-of-link')
	click_link('Link Text')
	click_button('Save')
	click('Link Text') # Click either a link or a button
	click('Button Value')

	begin
	require 'bundler/inline'
	rescue LoadError => e
	$stderr.puts 'Bundler version 1.10 or later is required. Please update your Bundler'
	raise e
	end
	gemfile(true) do
	source 'https://rubygems.org'
	gem 'rails', '5.0.0'
	gem 'pg'