iTP Secure WebServer System Administrators Guide (Version 7.5+)

B Error Messages
The iTP Secure WebServer reports error messages to the Event Management Service (EMS), a set
of uniform interfaces for capturing and analyzing errors from most NonStop software products.
The text part of each message also appears in the iTP Secure WebServer error log file if such a
file is defined and open.
These iTP Secure WebServer components report errors to EMS:
• WebServer (httpd process)
These messages have event numbers less than 1000 and contain the identifier httpd.
• Security subsystem (TLS and SSL)
These messages have event numbers between 1000 and 1999 and contain the identifier tls.
• Distributor process
These messages have event numbers between 2000 and 2999 and contain the identifier dist.
• Common Gateway Interface (CGI server processes and CGI library)
These messages have event numbers between 3000 and 3999 and contain the identifier cgi.
• Resource Locator Service (RLS)
These messages have event numbers between 5000 and 6000 and contain the identifier rls.
• Servlet Server Class (SSC)
These messages have event numbers between 7000 and 8000 and contain the identifier ssc.
All EMS messages from iTP Secure WebServer components have a subsystem identifier (SSID) of
WEBSERV. All messages are sent to the EMS primary collector, named $0.
Several interfaces are available for displaying EMS messages. To display the text, you should
configure your system to look for the template files NEWNRES and NEWRES in the subvolume
$SYSTEM.ZWEB. (The iTP Secure WebServer installation script does this configuration.) You also
can write filters and applications to process messages programmatically; the files ZWEBDDL,
ZWEBC, ZWEBTAL, ZWEBCOBOL, and ZWEBTACL in $SYSTEM.ZWEB contain the declarations
you need for various programming languages.
For information about the EMS interactive and programmatic interfaces, see the EMS Manual.
NOTE: If you do not choose to install the EMS templates with the iTP Secure WebServer, EMS
messages from iTP Secure WebServer components will have the subsystem ID of OSS and event
numbers in the range of 0 through 10, representing severity levels. This behavior would be consistent
with past iTP Secure WebServer releases but makes it difficult to recognize and process the
messages.
260 Error Messages