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Best Practices for UNIX chroot() Operations

Systems exposed to the internet are heavily challenged to keep the bad guys out, and keeping up with the latest security patches is not always easy. So, the wise admin will attempt to institute systemic steps to limit the damage should a compromise occur, and one excellent method is the use of a chroot() jail.
A chroot jail presents a dramatically restricted view of the filesystem to an application, and usually far fewer system privileges, and this all intends to limit the damage should the application go awry or be subverted by the bad guy.
This document touches on how chroot works and discusses some best practices that developers and administrators can use to make their installations more secure.


http://unixwiz.net/techtips/chroot-practices.html
February 2014
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