In addition to Wikipedia, the MDN also has a few good
introductions to SSL, as the Mozilla foundation sponsors NSS and
an assortment of other PKI projects. If you're looking for an
all around SSL/TLS book, SSL and TLS: Designing and Building
Secure Systems would be a good choice, as it discusses the
workings of SSL, its strengths and limitations, as well as safe
design patterns for implementing SSL across a variety of
applications, including web servers and email clients. You can
also check out the Open-Source PKI Book, which is a free open
source book on the various open source PKI implementations. The
problem with a book on SSL management is that SSL is used for so
many different purposes and with so many different applications.
How you set up or manage SSL certificates for web servers
depends on what web server, OS and other PKI software you're
using. A lot of CAs and vendors (IBM, Symantec, Trustwave,
Microsoft, etc.) have whitepapers and tutorials on certificate
lifecycle management for large organizatio