The Redoubt/Legends

The Redobut was a remote star cluster in Chiss space. The cluster was used as the site of a last stand, in the event that Chiss space was overrun by any foreign invader. The Redoubt contained high radiation levels, and the close proximity of stars to each other made navigation difficult. There were only a few safe routes into The Redoubt, and they are all guarded by Chiss fortifications, which prevented foreign intrusions. A planetoid in The Redoubt was the resting place of the ill fated Outbound Flight mission.

Source
Zahn, Timothy. Survivor's Quest. Del Rey Books: 2003.