Oracle® Linux 6 Administrator's Solutions Guide — Provides information about the advanced features of Oracle Linux and, in particular, the Unbreakable Enterprise Kernel (UEK).
Red Hat Product Documentation —
SUSE Product Documentation — On this page, find technical documentation, such as quick starts, guides, manuals, and best practices for all SUSE products and solutions.
Debian 7.5.0 (With Linux Kernel 3.2) — The Debian Project is making every effort to provide all of its users with proper documentation in an easily accessible form.
Ubuntu 16.04 —