Hmmm. That's a good question. I've been a Solaris Sysadmin for 8 years, on Solaris 9 for almost 3, but I don't have a book on Solaris. I use a couple of resources.
The books I do have that I use frequently are the O'Reilly "Unix in a Nutshell" and the "Unix System Administration Handbook, 3rd Ed." by Evi Nemeth, Garth Snyder, Scott Seebass, and Trent R. Hein. They both work for Solaris, and the second one highlights specifics for Red Hat Linux, Solaris, HP-UX and FreeBSD.
Of course, I use my Solaris systems. Man pages and just trying things out. I've got about a dozen Enterprise servers to play with. Well, OK, a number of them I'm not free to "play" with, because people depend on them.
I frequently make use of http://docs.sun.com/app/docs/coll/47.13
which is the complete documentation for Solaris 9 online and searchable at docs.sun.com. Their manuals will give detailed explanations of things and then follow with chapters that are step by step how to examples. If you bought them hard copy, it would be many expensive volumes.
I also follow the sunmanagers list. Usually I'm just reading posts. Quite infrequently I'll post a question (they don't humor newbies). Occasionally, I answer questions. They only permit original questions and a summary when you've solved your problem. Answers are to be to the original poster and not to the list.
And finally, there's always google. Haven't a clue how I survived before google. I guess we all just got less work done, took longer to find information or answers, and just didn't do as much with our systems.
One thing you should dig into sooner rather than later is securing Solaris 9. You can google that and find a couple of good guides. I've used 3 or 4. One came from Sun, one came from Northern Telecom, and one came from the NSA. You can find the NSA's software security guides (for operating systems and applications) at http://www.nsa.gov/snac/
-- that site alone could keep you busy for a while. SysAdmin magazine (RIP) has an overview at http://www.samag.com/documents/s=766...213f/0213f.htm
, and there are links at the bottom to the Sun security documents and white papers. Here's the Nortel guide: http://www.nortel.com/solutions/secu...g_guide_v1.pdf