Red Hat - EX200

The skills tested in this exam are the foundation for system administration across all Red Hat® products.

For details and how to use this repo please visit the Getting Started page.

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Flashcards

Playlists

Playground

VirtualBox flavor.

cd playground/virtualbox/ and follow this guide

Requirement

• Vagrant
• VirtualBox
• 2CPU cores
• 5GB of local RAM

Plugins

Please first install this plugins:

vagrant plugin install vagrant-hostmanager
vagrant plugin install vagrant-vbguest

Usage

First time it take around 30 min for setup and make essential configurations

Next time vagrant need just a few seconds...

# ignition! this command setup or turn on all the machines

vagrant up

# if you make some change on the extras files, to apply it use the flag --provission

vagrant up --provision

######### the prompt ask you for chose the bridge interface, common cases use **eth0** or the firs available real interface.

######### put the number of your interface and hit enter.

1) eth0
2) docker0
    bastion: Which interface should the network bridge to? 1

#########

Useful vagrant commands:

to avoid re-provision over and over again when you want start from a clean instance use snapshot save the first time you deploy the lab and snaphost restore every single time you want a fresh and quick instance.

vagrant destroy -f - Shuts down and destroys the environment
vagrant halt - Shuts down the environment VMs (can be booted up with vagrant up)
vagrant suspend - Puts the VMs in a suspended state
vagrant resume - Takes VMs out of a suspended state

# first time you have the lab up and running save it with a snapshot
vagrant snapshot save base-00

# to list all the saved snapshot
vagrant snapshot list

# to restore a snapshot
vagrant snapshot restore base-00

Synced folder between HOST (your machine) and GUEST (workstation)

   HOST                     GUEST
./synced ←←← →→→ /home/student/synced

vagrant --version

Vagrant 2.2.14

vboxmanage --version

6.1.16

topology

172.25.250.254    bastion        bastion.lab.example.com

172.25.250.9      workstation    workstation.lab.example.com
172.25.250.10     servera        servera.lab.example.com
172.25.250.11     serverb        serverb.lab.example.com

192.168.1.222     ·······        use this ip for LAN access 

VBox List

VBoxManage list runningvms
   "bastion" {ecb55eeb-7de3-4ecc-a812-71b29fb1c89f}
   "workstation" {9683fabe-2332-4439-9534-76ec40e66a81}
   "servera" {13ff8c3f-334d-48e8-aba9-c923149b7eb7}
   "serverb" {8598bea6-10be-4470-9d9e-140acca0cac8}

default credentials

user: root
pass: redhat

user: student
pass: student