Configure a VPS that fits your requirements.
Select the operating system of your connecting device.
Pick the same protocol as your server runs.
Connect your Android device to your IKEv2 server by following the guide.
Go to the dashboard
Click "GET VPN ACCESS" on server with IKEv2 protocol
Download "CA-CERT.CRT"
Go to your device Settings
Find "CA certificate"
Press "Install anyway"
Select the downloaded CA-CERT.CRT file
Open StrongSwan app
Click "ADD VPN PROFILE"
Set:
Server: [server address] from your server access window
VPN Type: IKEv2 EAP (Username/Password)
Username: [Username] from your server access window
Password: [Password] from your server access window
CA certificate: Select "IMPORTED" "VPN root CA"
Profile name: client1
Press "Save" button
The tunnel named "client1" will appear in the list
Click on it to connect
Confirm your connection by checking your IP.
Open ipaddress.my to confirm the VPN is working correctly. You should see your server's IP address and country there, confirming the connection is active.