Repository managers serve two purposes: they act as highly configurable proxies between your organization and the public Maven repositories and they also provide an organization with a deployment destination for your own generated artifacts. "Repository Management with Nexus" at books.sonatype.com/nexus-book will walk you through the installation process for both the Open Source version of Nexus and Nexus Professional, and it covers important topics such as:

* Installing Nexus as a Service on a Linux Machine
* Nexus Best Practices
* Managing Security with Nexus' Fully Customizable Role-based Authentication System
* Reading Nexus System Logs
* Installing Nexus as a WAR in an Existing Application Server
* Configuring Nexus Professional's LDAP Authentication Realm
* Configuring Nexus Professional's Staging and Procurement Features