Linux Administration Cookbook

Oracle Solaris

As we've already said, Oracle still actively publishes and supports Solaris, though a lot of the installations you'll come across these days are likely old installs that are still going. Solaris 10, first released in 2005, is technically still in support. 

Solaris 10 officially goes out of support in January 2021—though I'm willing to bet the limit to how long this support continues comes down to how deep your pockets are.

Featuring SPARC processor support and a tendency toward database installations, Solaris may be something you come across in your lifetime as an engineer, and if you do decide to become familiar with it, there's a good chance you'll join a diminishing pool of people with the knowledge of how to support it, ...