waseem-h

Requirements

There are 18 questions in total. You will need five RHEL 8 (or CentOS 😎 virtual machines to be able to successfully complete all questions.

Optional Automatic Exam Setup Available

Here is an automated exam environment deployment for Mac/Linux/Windows that deploys the practice exam environment for you, including IPA server/client installation and configuration. You can also use your own lab environment. Navigate to the respective repo you wish to use for this practice exam and follow the README instructions:

https://github.com/rdbreak/rhce8env, https://github.com/rdbreak/ansible27env, https://github.com/rdbreak/ansible8env.

alirobe

##########
# Tweaked Win10 Initial Setup Script
# Primary Author: Disassembler <disassembler@dasm.cz>
# Modified by: alirobe <alirobe@alirobe.com> based on my personal preferences.
# Version: 2.6.1, 2017-08-02
# Primary Author Source: https://github.com/Disassembler0/Win10-Initial-Setup-Script
# Tweaked Source: https://gist.github.com/alirobe/7f3b34ad89a159e6daa1/
# Tweak difference:
#
#    @alirobe's version is a subset focused on safely disabling telemetry, 'smart' features, and 3rd party bloat ...

tommydunn

brew install caskroom/cask/brew-cask
brew cask install atom

apm install linter # Base linter
apm install linter-ruby
apm install linter-scss-lint
apm install linter-coffeelint
apm install linter-rubocop
apm install linter-haml

renchap

Prerequisites : the letsencrypt CLI tool

This method allows your to generate and renew your Lets Encrypt certificates with 1 command. This is easily automatable to renew each 60 days, as advised.

You need nginx to answer on port 80 on all the domains you want a certificate for. Then you need to serve the challenge used by letsencrypt on /.well-known/acme-challenge. Then we invoke the letsencrypt command, telling the tool to write the challenge files in the directory we used as a root in the nginx configuration.

I redirect all HTTP requests on HTTPS, so my nginx config looks like :

server {

ChuckJHardy

DigitalOcean Ubuntu 14.04 x64 + Rails 4 + Nginx + Unicorn + PostgreSQL + Capistrano 3

Create a Droplet

SSH into Root

$ ssh root@123.123.123.123

Change Root Password

shamil

How to mount a qcow2 disk image

This is a quick guide to mounting a qcow2 disk images on your host server. This is useful to reset passwords, edit files, or recover something without the virtual machine running.

Step 1 - Enable NBD on the Host

modprobe nbd max_part=8

lelandbatey

Description

This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.

The script is here:

#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"

Results

Thermionix

auth_basic              "Restricted";
auth_basic_user_file    /etc/nginx/htpasswd;

jnx

# Update, upgrade and install development tools:
apt-get update
apt-get -y upgrade
apt-get -y install build-essential
apt-get -y install git-core

# Install rbenv
git clone git://github.com/sstephenson/rbenv.git /usr/local/rbenv

# Add rbenv to the path:

mig

;; emacs configuration

(push "/usr/local/bin" exec-path)
(add-to-list 'load-path "~/.emacs.d")

(setq make-backup-files nil)
(setq auto-save-default nil)
(setq-default tab-width 2)
(setq-default indent-tabs-mode nil)
(setq inhibit-startup-message t)