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Introduction

Orientation to the Classroom Lab Environment

In this course, students will do most hands-on practice exercises and lab work with two computer systems, which will be referred to as desktop and server. These machines have host names desktopX.example.com and serverX.example.com, where the number X in the computers' host names will be a number that will vary from student to student. Both machines have a standard user account, student, with the password student. The root password on both systems is redhat.

In a Red Hat Online Learning classroom, students will be assigned remote computers which will be accessed through a web application hosted at . Students should log into this machine using the user credentials they provided when registering for the class.

The systems used by each student use separate IPv4 subnets. For a specific student, their IPv4 network is 172.25.X.0/24, where the number X matches the number in the host name of their desktop and server systems.

Table 1. Classroom Machines

Machine nameIP addressesRole
desktopX.example.com172.25.X.10Student "client" computer
serverX.example.com172.25.X.11Student "server" computer

Controlling your stations

The top of the console describes the state of your machine.

Table 2. Machine States

StateDescription
noneYour machine has not yet been started. When started, your machine will boot into a newly initialized state (the desk will have been reset).
startingYour machine is in the process of booting.
runningYour machine is running and available (or, when booting, soon will be.)
stoppingYour machine is in the process of shutting down.
stoppedYour machine is completely shut down. Upon starting, your machine will boot into the same state as when it was shut down (the disk will have been preserved).
impairedA network connection to your machine cannot be made. Typically this state is reached when a student has corrupted networking or firewall rules. If the condition persists after a machine reset, or is intermittent, please open a support case.

Depending on the state of your machine, a selection of the following actions will be available to you.

Table 3. Machine Actions

ActionDescription
Start StationStart ("power on") the machine.
Stop StationStop ("power off") the machine, preserving the contents of its disk.
Reset StationStop ("power off") the machine, resetting the disk to its initial state. Caution: Any work generated on the disk will be lost.
RefreshRefresh the page will re-probe the machine state.
Increase TimerAdds 15 minutes to the timer for each click.

The station timer

Your Red Hat Online Learning enrollment entitles you to a certain amount of computer time. In order to help you conserve your time, the machines have an associated timer, which is initialized to 60 minutes when your machine is started.

The timer operates as a "dead man’s switch," which decrements as your machine is running. If the timer is winding down to 0, you may choose to increase the timer.

Revision: rh199-7-d0984a3