那些期望加固迅猛增加的网络目录的管理员们一直在热切盼望着Novell公司的NDS和微软的Active Directories。但随着他们越多地了解这些新的目录结构,他们就越发认识到,想达到单目录的目标还需要很长的路要走。正当人们已厌倦了等待的时候,元目录(metadirectories)的出现提供了一种流行的中间解决方案,成为通向单目录的一条捷径。元目录允许管理员先把用户的数据汇进一个管道,为移到一个单目录中作准备。另外,元目录正被用于实现主机和新应用之间的永久连接。为了替代现存的目录结构,元目录(如Isocor Inc.的MetaConnect)的目的是要结合并同步以前的目录系统。通常,一个目录被指定成主目录,以元目录作为数据管道,来实现主目录与其 Administrators looking to consolidate the rapidly expanding network of directories have been eagerly looking forward to Novell’s NDS and Microsoft’s Active Directories. But as they learn more about these new directory structures, they increasingly recognize that it takes a long way to reach their single-directory goals. While people are tired of waiting, the advent of metadirectories has provided a popular middle ground solution as a shortcut to a single directory. Metadirectory allows administrators to import user data into a pipeline for preparation for moving to a single directory. In addition, metadirectory is being used to achieve a permanent connection between the host and the new application. In order to replace the existing directory structure, the purpose of the metadirectory (such as Isocor Inc.’s MetaConnect) is to incorporate and synchronize the previous directory system. Usually, a directory is designated as the home directory, the metadata directory as the data pipeline to achieve the home directory with