Specifications

Basic Concepts
SentinelLM System Administrator’s Guide 3
lects this information and outputs a locking code that is a number based upon the
collected information. You provide this locking code to your vendor using a tele-
phone or the Internet and your vendor produces a license code that specifies all
authorized uses and includes the locking code.
Stand-alone or Networked Licensing
A protected application can be licensed to run on a single computer without
using a computer network. SentinelLM calls a license for this type of application
a stand-alone license. This kind of license is most often used when an applica-
tion is used by a single person on a particular computer. The software is installed
on that computer along with any needed license codes. This kind of application
is often installed directly by the users themselves on their own computers.
As an alternative, a protected application can be licensed to run on multiple com-
puters so that several computers can share it. In this case a computer network is
required so that all computers that are authorized to run the software are con-
nected. SentinelLM calls this a network license. A special SentinelLM program,
called the SentinelLM license server, must be installed onto one or more com-
puters in the network to coordinate the use of the application. The license server
has access to the license codes. When the application starts, instead of communi-
cating with SentinelLM software that has been linked to the application, the
application communicates instead with the license server.
The same procedure for software authorization takes place in both the stand-
alone and networked case. The only important difference is whether the
SentinelLM license management software is part of the protected application or
provided as a separate program, the license server.
Note If you have a stand-alone license, you may skip the rest of the information
in this section. It simply describes some additional SentinelLM capabilities
that are available with a network license. This information is of most value
to a system or network administrator.