Labels:text | map | diagram | screenshot OCR: A BLACK HOLE OF SECURITY Outside Black Hole Inside Black Hole Relaying news server Gopher Server ver HTTP News server server FTP internet rve Cisto Black Hole router Black Hot "(SPARCstation) Usei Name & mail server "User Figure 2: Black I lote divides a corporate network into an Oraside Nerwork and it Private Network. A the'd nerwork, called the Service Netamork, can protect servers on the Outside Nemmork.
