| Variable | Component | Description |
| CERTI_HOST | RTIA | machine on which RTIG is running |
| CERTI_TCP_PORT | RTIG, RTIA | TCP port used for RTIA/RTIG communications |
| CERTI_UDP_PORT | RTIG, RTIA | UDP port used for RTIA/RTIG communications |
| CERTI_NO_STATISTICS | RTIA | if set, do not display service calls statistics |