iX 6.5)

Chapter 1 19

Introduction to Internet Services

Overview of Internet Services

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.

• Making the POSIX name point to the MPE name ensures that the

ﬁle will be backed up with standard MPE STORE procedures in case

you haven’t modiﬁed your STORE command to back up new or

changed ﬁles in the POSIX name space.