However, depending on the context, you could use prefixes like:
* Cyber-: for digital or online portals (e.g., cyber portal)
* Web-: for internet-based portals (e.g., web portal)
* Info-: for portals that provide information (e.g., info portal)
* Multi-: for portals that provide access to multiple resources (e.g., multi-portal)
* Inter-: for portals that connect different systems (e.g., inter-portal)
Ultimately, the best prefix will depend on the specific meaning you want to convey.