Open the App Store on your iPad and download the Code app. Once installed, locate and set up the remote server feature.

To establish a connection, you'll need to create a TCP tunnel pointing to port 22 of your remote server.

2. Set Up Cpolar for Remote Access

2.1 Installing Cpolar

Run the following command to install Cpolar:

curl -L https://www.cpolar.com/static/downloads/install-release-cpolar.sh | sudo bash

Alternatively, for faster installation outside China:

curl -sL https://git.io/cpolar | sudo bash

Check the installed version:

cpolar version

Authenticate using your token from the Cpolar dashboard:

cpolar authtoken YOUR_TOKEN_HERE

Test the setup by creating a simple HTTP tunnel:

cpolar http 8080

Exit with Ctrl+C when done.

Add Cpolar as a system service:

sudo systemctl enable cpolar

Start the Cpolar service:

sudo systemctl start cpolar

Verify the service status:

sudo systemctl status cpolar

2.2 Creating a TCP Tunnel

On an Ubuntu machine, open a browser and navigate to localhost:9200 to access the Cpolar web UI. From there, create a new TCP tunnel:

• Tunnel Name: Customizable (avoid duplicates)
• Protocol: TCP
• Local Address: 22
• Domain Type: Random Temporary TCP Port
• Region: China Top

After creation, copy the public address from the active tunnels list.

3. Remote Development on iPad

In the Codde app, configure a new remote SSH connection:

• Protocol: SSH
• Address: The public address generated by Cpolar (e.g., 6.tcp.cpolar.top)
• Port: Public port number (e.g., 14503)
• Username: Server username
• Password: Server password

Once connected, select a folder to set as your workspace. You can now edit files just like in desktop VSCode.

Test synchronization by modifying code on the server and running it on the iPad:

go run main.go

This should output "HELLO WORLD," confirming a successful connection.

4. Configuring a Fixed TCP Address

Random temporary addresses change every 24 hours. To maintain a stable connection, upgrade your Cpolar plan to Professional or higher and reserve a fixed TCP address:

4.1 Reserving a Fixed TCP Address

Log into the Cpolar dashboard, go to the reservation section, and choose:

• Region: China VIP
• Description: A custom note for reference

Click "Reserve" to generate a permanent public address and port combination.

4.2 Applying the Fixed TCP Address

Update your Code app settings with the new reserved address to ensure uninterrupted remote access.