The moon says to him:] 'Oh, I've been scanning pond and hole And waterway hereabout For the body of one with a sunken soul Who has put his life-light out.

Host security is becoming an urgent problem that every computer user has to face. Host hole scanning technique is an important security technology to provide security guarantee for host.

Based on the request and character of hole detection technology, this article establishes a distributing scanning task scheduling model, describes a scanning task distributing algorithm.