Getting Sudo
 Purchase Sudo
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 Mirroring Sudo

Documentation
 README for Sudo
 README for LDAP
 Installation Notes
 Supported Platforms
 Troubleshooting FAQ
 License
 Changelog
 Sudo Manual
 Sudoers Manual
 Visudo Manual
 Other Documentation

Sudo Resources
 Commercial Support
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 Bug Tracking System
 Sudo Tools
 Similar Utilities

Other
 Site Search
 GratiSoft main page
 Mktemp page
 Newsyslog page
 Todd's page

Alek Komarnitsky has a nice slide show on how to use sudo in a large, heterogeneous environment.

A.P. Lawrence has a nice article that covers the sudo basics entitled Using Sudo.

About.com has a nice intro to using sudo entitled Managing Root Access with Sudo.