opendaycybersecurity

Activity for open day

Install Instructions

As of Jan 2026, all necessary tools / packages are pre-installed on the Diamond Laptops, so there are NO installation steps to carry out. Nonetheless, the installation steps are documented here for future reference.

On The Day

Log in to the offer_holders user account on the Diamond Laptop.

Running the Waffle

The following instructions are copied from here.

waffle X pair

(where X is the waffle we are using)

Type in the password

Then later, in the same terminal:

waffle X term

Then:

tb3_bringup

Close down this window (click "Close Terminal" if asked).

In a new terminal, run:

tmux

then inside that tmux screen,

rmwz

Finally: Type Ctrl-B + D (this detaches the tmux windows, so the students can't see it).

Running the Web Server

First start another tmux window:

tmux

Then, activate the virtual environment:

source ~/opendaycybersecurity/venv/bin/activate

Launch the activity:

activity

Finally, detach the tmux window: Ctrl-B + D. This hides the server from the students.

Stopping the Web Server

To kill the web server, use:

pkill activity

(from a separate terminal.)

Using tmux (a very quick guide!):

List Sessions

To list all tmux sessions:

tmux ls

If you followed the steps above, there should be two listed:

tmux ls
0: 1 windows (created Day Month Year HH:MM:SS YYYY)
1: 1 windows (created Day Month Year HH:MM:SS YYYY)

Session id's are the left most numbers in the above (i.e. 0 and 1).

Attach (return) to an existing session

To attach to a session (e.g. 0 or 1 from above)

tmux a -t SESSION_ID

e.g. to return to session 0:

tmux a -t 0

Or to return to session 1:

tmux a -t 1

Detach (exit from) a session

Leave (i.e. "detach from") a tmux session: Ctrl-B + d.