iX 6.5)

48 Chapter3

Telnet Service

Conﬁguring Telnet Server

To conﬁgure Telnet, you will edit two ﬁles: the services ﬁle, which lists

the individual services that comprise the suite of Internet Services, and

the inetd conﬁguration ﬁle, which informs the Internet daemon about

running Telnet on this system.

Editing the Services File

The services ﬁle associates ofﬁcial service names and aliases with the

port number and protocol the services use. To enable Telnet, you must

edit the services ﬁle. Perform the following:

1. Open the services ﬁle with an MPE text editor. You may edit the

/etc/services ﬁle from the POSIX shell or the SERVICES.NET.SYS

ﬁle from MPE/iX, whichever you prefer. Both ﬁle names should point

to the same ﬁle.

2. Verify that the following line exists in the ﬁle or add it if it does not:

telnet 23/tcp

3. If the line already exists in the ﬁle and it is preceded by a pound

symbol (#),delete the symbol and any spaces before the service name

to enable the service.

4. Save the ﬁle and exit the editor program.

For more detailed information about editing this ﬁle, read Chapter 1 ,

“Introduction to Internet Services.”

Adding Telnet Service to inetd Conﬁguration

The conﬁguration ﬁle for inetd determines which installed Internet

Services are available to users. To add Telnet service to your system,

you need to edit the conﬁguration ﬁle for inetd, then have inetd

re-read the conﬁguration. Perform the following:

1. Open the conﬁguration ﬁle with a text editor. You may edit the

/etc/inetd.conf ﬁle from the POSIX shell or the

INETDCNF.NET.SYS ﬁle from MPE/iX, whichever you prefer. Both ﬁle

names should point to the same ﬁle.

2. Verify that the following line exists in the ﬁle or add it if it does not:

telnet stream tcp nowait MANAGER.SYS internal

3. If the line already exists in the ﬁle and it is preceded by a pound

symbol (#),delete the symbol and any spaces before the service name

to enable the service.

4. Save the ﬁle and exit the editor program.