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 name | IP addresses | Role |
|---|
desktopX.example.com | 172.25.X.10 | Student "client" computer |
serverX.example.com | 172.25.X.11 | Student "server" computer |
Controlling your stations
The top of the console describes the state of your machine.
Table 2. Machine States
| State | Description |
|---|
| none | Your machine has not yet been started. When started, your machine will boot into a
newly initialized state (the desk will have been reset). |
| starting | Your machine is in the process of booting. |
| running | Your machine is running and available (or, when booting, soon will be.) |
| stopping | Your machine is in the process of shutting down. |
| stopped | Your 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). |
| impaired | A 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
| Action | Description |
|---|
| Start Station | Start ("power on") the machine. |
| Stop Station | Stop ("power off") the machine, preserving the contents of its disk. |
| Reset Station | Stop ("power off") the machine, resetting the disk to its initial state. Caution: Any work generated on the disk will be lost. |
| Refresh | Refresh the page will re-probe the machine state. |
| Increase Timer | Adds 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.
