Administration Tools; Traffic Analysis Options; Traffic Server Security Options - HP P4535A - Web Cache Server Appliance Administrator's Manual

Chapter 1

Administration tools

Traffic Server offers several administration alternatives to suit the needs of many environments:
Traffic Manager User Interface (UI) is a web based interface consisting of a series of web pages accessible
through a browser. Traffic Manager provides a rich set of graphs and statistical displays for monitoring
Traffic Server performance and network traffic, and a set of options for configuring and fine-tuning the
Traffic Server system. Traffic Manager offers password-protected, SSL-encrypted, single-point
administration for an entire Traffic Server cluster.
The Traffic Line command-line interface is a text based interface that provides equivalent functionality to
that of Traffic Manager. From the command line, you can execute individual commands or script a series
of commands in a shell.
Various Configuration files allow complete administration through a simple file editing and signal
handling interface. You can change configuration options by editing configuration files manually instead
of using Traffic Manager or Traffic Line. (Any changes you make through Traffic Manager or Traffic Line
are automatically made to the configuration files.)

Traffic analysis options

Traffic Server provides several options for network traffic analysis and monitoring:
Traffic Manager statistics and graphs show network traffic information. You can view graphs and
statistics from Traffic Manager or collect and process statistics using the command-line interface, Traffic
Line.
MRTG (Multi Router Traffic Grapher) is a graphing tool that provides a variety of graphs showing
historical information about virtual memory usage, client connections, document hit rates, and so on. You
can access MRTG from Traffic Manager.
SNMP Network Management support lets you monitor and manage Traffic Server through SNMP network
management facilities. Traffic Server supports two management information bases (MIBs): MIB-2, a well
known standard MIB, and the HP proprietary Traffic Server MIB that provides more specific node and
cluster information.
Traffic Manager alarms are presented in Traffic Manager. Traffic Server signals an alarm for any detected
failure condition. You can configure Traffic Server to send E-mail or page support personnel when an
alarm occurs.
Transaction logging lets you record information in a log file about every request that Traffic Server
receives and every error it detects. By analyzing the log files, you can determine how many people use the
Traffic Server cache, how much information each person requested, and what pages are most popular. You
can also see why a particular transaction was in error and what state the Traffic Server was in at a particular
time. For example, you can see that Traffic Server was restarted or that cluster communication timed out.
Traffic Server supports several standard log file formats, such as Squid and Netscape, and its own custom
formats. You can analyze the standard format log files with off-the-shelf analysis packages. To help with
log file analysis, you can separate log files so that they contain information specific to protocol or hosts.
Traffic analysis options are described in more detail in
options are described in

Traffic Server security options

Traffic Server provides numerous options that enable you to establish secure communication between the
Traffic Server system and other computers on the network. Using the security options, you can:
Control client access to the Traffic Server proxy cache.
Control which hosts are allowed to access the Traffic Server machine (ARM security).
Chapter 12‚ Working with Log
Chapter 9‚ Monitoring Traffic. Traffic Server logging
Files.
Overview
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