Solution is acting as a gateway for remote administration tasks. Available on HTTPS only. Allow RDP, VNC and SSH from it to our applicative end servers. Access is restrained to Admin with 2FA.
Pros
All port closed except 443
Attackable scope is limited
Administration tasks are under one entry point
Need
Privileged users accesses should only be made through a secure portal no matter is the end-devices.
Some remote network are totally isolated from internal ressources. No VPN, low filter, minimal infrastructure. We needed automatic check going securely through Public internet.
Merge similar scripts or scripts acting on similar actions. Comments lines and function to understand code block. Create easily readable logs. Push failure warning to IT group. Use modern auth and token.