This document contains all frequently asked information and setup questions. It is designed to be a quick reference document for Math & Computer Science Lab users and will posted publicly in the labs.

Logging In for the First Time

Each user will be given a username and password specific to the Math & Computer Science Labs. This paper will be available for either pick up at the Math & Computer Science Technical Specialist’s office (Olin 126) or can be printed off by the Faculty member as all of the accounts are emailed to them upon creation. If you do not receive this paper, please contact your professor or the MCSTS.

1. Login = Whitman Campus Username

2. Password = Temporary password given to you by professor

3. On your keyboard, press CTRL+ALT+T all at once. This will open a terminal.

4. Next, type in the following command and hit ENTER on your keyboard:

reset-icons

5. You will be logged out.

6. Log back in and open another terminal.

7. Type in kpasswd command in the terminal and change your password.

a. Use your given password first when prompted.

b. Please keep in mind, text on the screen will not appear when you are changing your password but the computer is accepting input from the keyboard.

Pair Programming Setup

Paired Programming Quick Start (Olin 124, 228 only):

Paired Configuration (Barrier)

· Computer A Instructions

o Open the Terminal and type in mirror and then barrier &

o Once the application opens, check the Client checkbox

o In the Server IP: field, type in Computer B’s name (all lower case)

o Click Start.

o Once prompted click OK

· Computer B Instructions

o Open the Terminal and barrier &

o Once the application opens, check the Server checkbox

o Click the Configure Server… button

o Drag the Computer icon in the corner to the left of the computer in the grid

o Double click the Unnamed computer and change it to Computer A’s name (all lower case).

o Click OK then click Start

o Toggle Computer Display until HDMI appears in the bottom right corner of the screen.

NOTE: the mirror command only works on Computer A

Paired Configuration (x2x)

· Open a Terminal and type in startx2x

· Follow the onscreen prompts to setup.

· Keep in mind, that Computer B will need to move mouse all the way right to have it appear on Computer A (Strange bug won’t let x2x send the cursor to the left).

Change Lab User Password

If a student is locked out of your account due to a forgotten password, type in the following command into the Terminal and follow the on screen prompts: resetpass

If they remember their password but wish to change it, type in the following command into Terminal and follow the on screen prompts: kpasswd

PLEASE NOTE! You will need authorization from your instructor or the Math & Computer Science Technical Specialist to reset your password. You may be asked to verify your ID. Also, the local admin account is NOT your network account. If you have forgotten your password, please contact the Math & Computer Science Technical Specialist.

Run i>clicker software

To run the i>clicker, type the following command in the Terminal: iclicker

PLEASE NOTE! The iClicker software must be running BEFORE you plug in the base station. If you encounter errors, you may need to run the setup file again. This can be done by typing in setup-iclicker and hitting ENTER on the keyboard to run it. You’ll need sudo capabilities.

Epoptes and Screen Sharing through Airplay

Epoptes allows you manage the classroom lab terminals from a streamlined GUI. The software can only be run from the podium computers as they act as the server. The lab terminals have a client version, which runs automatically upon login.

To run Epoptes, type in the following command in the Terminal: epoptes

The software will immediately begin running and start picking up the lab terminals.

In order to have a student share their screen through the Apple TV, select DVD/VCR on the podium touchscreen. Then have the student type in the following command into their terminal: airshare

They will need to hit CTRL+C to quit sharing their screen.

IMPORTANT! Only one person can be sharing their screen at the same time. If someone runs airshare while another person is currently sharing, it will take over the current session. If that person quits, the Apple TV will not resume the previous session.

Printing

When printing, selecting Olin124-BW will print to Olin 124 printer, Olin228-BW will print to Olin 228, Olin207-Color will print to the color printer in Olin 207 and Olin207-BW will print to the monochrome printer in Olin 207. Once print order has been submitted, proceed to the destination Printing Kiosk in the locations specified above.

1. On the screen, printing requests are listed on the screen.

2. Using the keyboard, select the print request.

3. Hit ENTER on the keyboard.

4. You will be prompted for your password.

This is your Math & CS Lab account password NOT your Whitman account password.

5. The print request will be processed and your account will have the amount deducted from it.

PLEASE NOTE! The printing system is separate from the GoPrint system used on campus. It is only available to individuals who have an account on the Math & Computer Science Lab Computers. However, like the GoPrint system, each user is given a preset amount of money to print with. If this amount hits zero, please contact Math & CS Tech Specialist.

Projectors

To mirror the computer and projector screens:

1. Open a new terminal.

2. Type in mirror and hit the ENTER key. (FYI, this only works on Computer A)

To play audio out of the Lab Speakers:

1. Log in to the podium computer.

2. Select System Settings.

3. Click Sound.

4. Select HDMI Output.

The display panel to the left of the Podium computer contains all the commands you’ll need to operate the projector.

INFO = Contains Contact for Technical Support

MUTE = Mutes Audio (Can also touch the sound bars to mute).

Volume Up / Volume Down

Projector Power = Turns Projector On/Off

Hide Screen = Hides projector display, but keeps projector on.

Show Screen = Unhide the projector display.

Comp = Select Podium computer as the output.

Guest = Uses HDMI input located on top of lectern as output.

Apple TV = Displays Apple TV. Remote on top of lectern in cable box. May need to wake it up by pressing the center button on the remote.

THINGS TO NOTE!

- If you turn the Projector off, wait until the Status Light on the bottom of the projector turns red before turning it back on again.

- If nothing is coming up on the screen, a hard reset on the projector may be required.

SSH Remote Access to your Files

Students and faculty are able to remote in from home to any of the Math & Computer Science computers by connecting through Secure SHell or ssh.

To ssh into a Lab Computer from Mac/Linux:

1. Open up Terminal.

2. Type the following command filling in the names where requested:

ssh –A <MathCS_Account>@math.whitman.edu

Example:

ssh –A smithj@math.whitman.edu

3. If prompted with a yes:no option, type in yes and hit ENTER

4. When prompted for a username or password, use your Student Lab Account.

5. IMPORTANT: when work is done, type exit in Terminal until the connections are closed.

To ssh into a Lab Computer from Windows:

1. Download PuTTY application from the following website:

a. http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html

b. Select PuTTY.exe for Windows on Intel x86

2. Open up PuTTY by double clicking on it. (It doesn’t install anything, it is an executable).

3. Where it asks for a hostname, type in: math.whitman.edu

4. Click CONNECT and say yes to the prompt.

5. When prompted, type in your Student Lab Username and Password.

6. Here you will need to use a local editor like pico to edit files.

IMPORTANT: when work is done, type exit in PuTTY until the connections are closed.

SCP - Secure Copying of Files to your Local System

Not only can students and faculty remote in from home to any of the Math & Computer Science computers, but they are able to transfer files between the two without needing a separate FTP client. This can be achieved through the use of Secure Copy.

To scp a file from Mac/Linux:

1. Open up Terminal.

2. Type in the following command filling in the paths where bracketed:

scp <MathCS_Account>@math.whitman.edu:~/<directory_name>/<file_name> ~/<local_directory_name>/

If you need help locating your file in terminal, review the Linux Commands section below. You can also use the SSH instructions above remote into your directory and see the files.

3. When prompted, put in your account password to start the transfer.

4. Exit the terminal when complete.

Example Scenario:

scp smithj@math.whitman.edu:~/homework/homework1.py ~/Documents/

To scp into a Lab Computer from Windows:

There are no native SCP capabilities for Windows, so you’ll need to install a File Transfer Protocol program called FileZilla.

1. Download FileZilla for Windows from the following website:

a. https://filezilla-project.org/download.php?type=client

b. The file will need to be installed once it is downloaded.

2. Open FileZilla.

3. Fill in the fields at the top with the following information:

a. Host: math.whitman.edu

b. Username: <MathCS_Account>

c. Password: <MathCS_Account_Password>

d. Port: 22

4. Click Quickconnect and Filezilla will connect with your personal directory on math.whitman.edu and display it in the right pane under Remote site.

5. From here, locate the file you wish to transfer and drag it into left pane under Local site, which contains your local computer file structure.

6. When you are finished copying files, close down Filezilla.

Lab Map with Hostnames

MathLab (Olin 207)

To see who is actively logged into to which station, go to the following link:

http://skink.whitman.edu/cgi-bin/mathlab_finger.pl

FRONT of CLASS
Zeus
Coeus	Athena	Artemis	Ares	Apollo	Aphrodite
Hera	Hephaestus	Dionysus	Demeter	Cronus	Crius
Oceanus	Mnemosyne	Iapetus	Hyperion	Hestia	Hermes
Themis	Theia	Tethys	Rhea	Poseidon	Phoebe

CS Lab 1 (Olin 124)

To see who is actively logged into to which station, go to the following link:

http://skink.whitman.edu/cgi-bin/cslab1_finger.pl

FRONT of CLASS
Markweiser
Anitaborg	Evinemeth	Johnmccarthy	Landin	Goldstine	Vonneumann
Skolem	Estrin	Shockley	Atanasoff	Keniverson	Pausch
Annieeasley	Jefraskin	Kaymcnulty	Jonpostel	Gertrudeblanch	Tedcodd
Emilpost	Engelbart	Allennewell	Zuse	Mauchly	Ritchie
Quine	Holberton
Nygaard	Kleene
Noyce	Bartik

CS Lab 2 (Olin 228)

To see who is actively logged into to which station, go to the following link:

http://skink.whitman.edu/cgi-bin/cslab2_finger.pl

FRONT of CLASS
Adalovelace
Al-khwarizmi								Jpeckert
Pnueli								Backus
Gracehopper	Perlis	Lamarr		Brattain		Fitts		Dijkstra
Anwang	Buituongphong		Skipellis		Babbage		Shannon	Turing

Sound Controls

To play sound from the podium computer to the external hanging speakers in the labs, you’ll need to change the sound output in the computer. The HDMI cable located in the back of the machine handles the sound and the volume is adjusted via the touch screen controls on the Podium touchscreen.

Room Computer

1. On the Podium touchscreen, as seen in the Projectors section, make sure that the Room computer option is selected.

2. Log in to the computer and open the System Settings.

3. Click on the Sound option located in the Hardware section.

4. Macintosh HD:Users:palmerdl:Downloads:screenshot.png In the Output tab, in the Play sound through list, select HDMI/DisplayPort 2 and close the window.

PLEASE NOTE! There are two ways to adjust the sound: the output volume controls in the computer and in the top right corner of the podium touch screen.

Guest Computer

1. On the lectern touchscreen, as seen in the Projectors section, make sure that the Guest option is selected.

2. Open the computer’s sound options and select the HDMI option.

a. For Windows: Control Panel > Sound > Playback tab

b. For Mac: System Preferences > Sound > Output tab

PLEASE NOTE! If you need an adapter, please contact the Math & Computer Science Technology Specialist.

Guest Login

Should a person not have an account created or if the person should only need a temporary account, they may access any computer via the local account.

Username: local

Password: mcs.training!

Installed Applications

Fastest way to find the packages installed is to open a terminal and type in the following commands:

dpkg-l
apt list --installed

Helpful Linux Commands

Command	What it stands for	What it does
pwd	print working directory	displays the name of your current directory
ls -l	list (long form)	displays contents of your current directory
ls -ld	list (long form, directory)	displays information about your current directory
mkdir dirName	make directory	creates a new directory dirName
cd dirName	change directory	moves you to directory dirName
cp sourceFile targetFile	copy	makes a copy of sourceFile, called targetFile
mv sourceFile targetFile	move	renames sourceFile to targetFile
chmod XXX fileName	change mode	changes permissions on fileName

Common Lab Issues/Fixes

There are a number of common problems that the CS/Math lab computers have that can be resolved relatively simply. Here are some well-known ones and their fixes:

Issue: No response from mouse and keyboard

Causes:

- White switch’s USB are not plugged in

- You’ve unplugged and replugged in the mouse and keyboard recently

Solutions:

- Unplug and then plug in USB’s back into the computer and wait 3 minutes

- Restart affected computer with a hard reset (Hold power button for 10 seconds)

Explanation: Since Ubuntu 18.04, the udev package which handles plug and play takes up to 3 minutes to recognize new USB inputs. There is no fix for this.

Issue: Google Chrome will not appear on screen when opened

Causes:

- Monitor is extending the desktop to the second computer

- There is a fatal error (e.g. hard drive failure)

Solutions:

- Open a terminal and type mirror , then hit ENTER

Explanation: Tends to happen only to A computers as the students tend to set them back from Mirroring the desktops to Extending them. The B computers won’t have this happen to them because they can’t be mirrored or extended.

Issue: Cannot log into the machine

Causes:

- Computer has just restarted and needs a minute to connect to the network

- Network communication error

Solutions:

- Wait a couple of minutes and then try to log in

- Hard reset of the computer (hold down the power button for 10 seconds)

Explanation: The network profiles are mounted through NFS. Sometimes it takes a while for it to kick in and mount. Other times, the wake on LAN breaks the the networking service.

Issue: Projector will not come online/no image display

Causes:

- The projector was turned off and on too quickly.

Solutions:

- Hard reset the projector by physically going up to the projector and unplugging and plugging it back in.

Explanations: The particular models in the labs have this issue. Others do not.

Issue: Firefox is locked, won’t respond or is blank

Causes:

- Unknown

Solutions:

- Close Firefox, open a terminal and type in the following command:

mv ~/.mozilla ~/.mozilla_old

- Reopen Firefox.

Explanations: Not really sure why this happens, but what you are doing is moving Firefox’s temporary files and then letting the application recreate them.

Issue: Every time Chrome opens up it prompts a password

Causes:

- You’ve changed your password to your account at some point.

Solutions:

- Open a terminal and type in seahorse

- The Passwords and Keys form will open.

- In the left side menu, right click Login under the Passwords section and click Delete.

- Agree to the prompt.

- When you reopen Chrome, it will prompt you to enter a password.

- Input your login password.

Explanations: Ubuntu remembers internal passwords and if they change, it can bring on this prompt.

Contact Information

For additional information or support, please contact the Math & Computer Science Technical Specialist:

Dustin Palmer

Phone # 526-4745

Room # Olin 126

Email csmath.ilt@whitman.edu