How to use eeCTF and Tailscale

How to download the RCS CTF event platform?

Welcome to RCS CTF? Ready to get hacking? Follow the steps below to download the RCS CTF event platform and get started with the challenges.

• Open your web browser and navigate to the link: http://100.64.0.11:5173

How to connect to Tailscale and access the challenges?

1. After signing in or signing up, visit https://tailscale.com/download to download Tailscale for your specific OS.

2. Install Tailscale by following the installation instructions provided on the Tailscale website for your OS.

3. Open your command line interface (CLI) or terminal on your computer.

4. Check if Tailscale is installed successfully by typing the following command and pressing Enter:

   1

   tailscale

5. If the installation is successful, proceed to connect to Tailscale using the following command:

   1	tailscale up --login-server http://3.111.220.12/ --authkey c37caddfa0e7cc2a3c0c0971b5777631df3fadce197586c6

   Replace http://3.111.220.12/ with the actual login server address and c37caddfa0e7cc2a3c0c0971b5777631df3fadce197586c6 with your authentic key.

6. If the connection is successful, you will be able to interact with the challenges on eectf. Verify the connection by attempting to access the specified challenges.

7. If you encounter any problems during the process, please contact your nearby coordinator for assistance.

8. Congratulations! You are now ready to participate in the challenges. Happy hacking!

For MAC users only

1. Open Security & Privacy:

2. In the System Preferences window, click on “Security & Privacy.”
   Unlock to Make Changes:

3. If the padlock icon in the bottom-left corner is locked, click on it and enter your administrator password to unlock it.
   Allow the App to Open:

4. In the “General” tab of the Security & Privacy preferences, you will see information about the blocked application.

5. Click on the “Open Anyway” button next to the message about the blocked application.

6. A new dialog will appear, asking if you’re sure you want to open the application. Click “Open.”
   Confirm Opening:

7. If prompted again, confirm that you want to open the application.
   Open the Application:

The application should now open without any issues.