iTP Secure WebServer System Administrator's Guide (iTPWebSvr 5.1+)

iTP Secure WebServer System Administrator’s Guide—522659-001
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Introduction to the iTP Secure
WebServer
The iTP Secure WebServer provides a full range of services for running an online
commercial or informational enterprise on the Web. In addition to basic web-related
services, the iTP Secure WebServer provides other important services including access
control, enhanced logging, customized error messaging, and automatic directory
indexing.
The iTP Secure WebServer’s key features are as follows:
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High performance
The iTP Secure WebServer’s high-performance, multithreaded architecture provides
low-latency response to multiple clients simultaneously. Persistent connections can
provide significant performance gains in comparison with a separate connection for
each request.
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Caching at several levels
To improve performance, the iTP Secure WebServer caches files it accesses. Disk
file access is one of the most common and expensive operations in a web server.
Therefore keeping these files in memory will save a lot of CPU utilization, and
improve overall performance. In addition to file opens, already cached, the file
information as well as the actual file content can also be cached.
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Encryption and authentication flexibility
The iTP Secure WebServer supports the use of the HTTP, SSL, PCT, and
hardware-based cryptography provided by WebSafe2 units. These options give you
maximum flexibility in protecting the privacy and integrity of your server’s
interactions with clients. The iTP Secure WebServer implements both encryption
and digital signatures.
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Flexible access control
You can control access to the iTP Secure WebServer on the basis of such factors as
host name, time of day, user name, browser type and version, and authentication
method.
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High availability
The iTP Secure WebServer uses Compaq NonStop TS/MP to ensure high
availability. NonStop TS/MP lets you run, as a server class, several instances of the
same process. You can configure NonStop TS/MP to create new processes as
workload increases and to restart any process that fails.