Configuring and Managing MPE/iX Internet Services (July 2001)

Chapter 1 19
Introduction to Internet Services
Overview of Internet Services
Sample Configuration Files
When you install or update to version C.60.00 of MPE/iX, a set of
sample configuration files is automatically copied to the NET group of
the SYS account for you. For example, INCNFSMP is the name of the
sample inetd configuration file. These files were named and installed
in this form to prevent overwriting any genuine configuration files
already in use.
To view the group of files installed in NET.SYS, enter:
:LISTFILE @.NET.SYS
To configure Internet Services, you will do one of two things:
• If there are configuration files already in use, you will add the
information needed to use each of the Internet Services to those files.
• If you are not already using Internet Services configuration files, you
will use the sample configuration files that were installed with the
FOS as templates for your own set. In this case, you will use the
COPY command to create each of the configuration files, then create a
symbolic link from a file name in the POSIX name space to the
actual file, which exists in the MPE name space. (Linking the files is
explained next.) Finally, you will edit the new configuration files to
suit your needs.
Linking Configuration Files
The Internet Services software looks for some of its configuration files
in the POSIX name space and not in the MPE name space. For example,
it accesses the /etc directory and looks for the file named inetd.conf
to read inetd configuration data. It does not look for the file
INETDCNF.NET.SYS.
Rather than create two copies of the configuration file, one for each
name space, Hewlett-Packard recommends that you create a symbolic
link from a POSIX-named file to the MPE-named file. The instructions
in the remainder of this manual describe this process. Linking the files,
as opposed to making another copy of each one, offers three important
advantages.
• Linking the file ensures consistency of content because regardless of
which name you use to access the file, you will be reading or
updating the same file.
• Giving the file a name in each name space allows you to view the file
from either the POSIX or the MPE name space, but it is
recommended that you use an MPE text editor to make changes.
This is due to potential conflicts with the MPE/iX EOF marker if any
lines are added using a POSIX editor program.