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VPN Installation for GPU Cloud Access – For macOS Users

Korea University's GPU Cloud requires VPN access using the Tailscale client. However, instead of using Tailscale’s public server, a dedicated VPN server for GPU Cloud is used, so you must configure the correct login server address.

This document explains how to install and set up the VPN on macOS. For Windows users, please refer to the Windows Guide For other operating systems, see the Tailscale download page.

Tailscale

Installation

Tailscale can be installed in several ways depending on user preference. You may choose from one of the following methods:

1. Install via App Store

App Store 설치

2. Install via Homebrew

검색결과
  • Visit the brew search for tailscale, and run the command in Terminal to install the package.

3. Manual Download and Installation

홈페이지

⚠️ (note) Tailscale may not function properly unless you allow the network extension permission. If you see a message like the one below, follow the instructions at this link based on your macOS version.

네트워크 권한 팝업

Verify Installation

  • Open Terminal and enter the following command to confirm installation.
tailscale version

VPN Login and Connection

Initial Login Setup

메인
  • Open Tailscale and go to Tailscale Settings (cmd + ,), then select the Accounts tab.
add_account_1
add_account_2

  • Enter the email address you wish to register for VPN use.

  • Next, open Terminal and run:

tailscale login --login-server=https://gpuvpn.korea.ac.kr --accept-routes
  • A browser window will automatically open with a login URL (or you can click the link shown in the terminal).
cli_success
  • When prompted, log in with your Korea University Microsoft account.
구글로그인 화면1
  • Once login is successful, you’ll see a confirmation screen like the one below.
tailscale_success

주의) Do not run tailscale up directly. If you do, you may see the following screen, and you will not be connected to the GPU Cloud.

잘못된 로그인 시도 화면

You must first run
tailscale login --login-server=https://gpuvpn.korea.ac.kr --accept-routes
to ensure correct login and connection to the GPU Cloud VPN.

Managing VPN Connection

  • tailscale status - Check VPN connection status and view connected devices and IP addresses.
  • tailscale down - Disconnect the VPN.

If VPN Connection Fails

  • If you are unable to connect
  • Run tailscale down to disconnect.
  • Re-run tailscale login --login-server=https://gpuvpn.korea.ac.kr --accept-routes to log in again properly.