HP 3000 Manuals HP 3000 Manuals
Troubleshooting Telnet
This section explains the kinds of errors that may arise regarding the
operation of Telnet. The Telnet client user will, in all but one case,
be alerted about the problem directly; an error message will appear on
the client's terminal. You, as system manager of the host system may
receive phone calls from client asking you to investigate the problem.
Problem Explanation
Unknown service This message will be written to $STDLIST for
JINETD.NET.SYS when a Telnet client is unable
to find the Telnet entry in the services file.
Telnet client users may see a similar message
on their terminal, and call you, the system
manager of the host, to resolve the problem.
Open the services file and make sure that the
line telnet 23/tcp exists. If necessary add
the line and then reconfigure the Internet
daemon. For more information, read "Editing
the services file" earlier in this chapter.
The Telnet client cannot The Telnet client user may not have entered the
run Telnet correct program name at the prompt, which is
TELNET.ARPA.SYS. Or, there may be problems with
the network.
The Telnet client cannot The Telnet client user can encounter this
connect to the host problem for one of several reasons:
* The user entered the domain name, IP
address, or NS node name incorrectly.
* The system the client attempted to
access does not support Telnet.
* The network of the system the client
attempted to access is not working.
* The Internet daemon is not running on
the system the client tried to access.
There is a host name The Telnet user tried to log on when the
lookup failure network was not running. Or the host system
the client tried to access is not configured on
the network.
The Telnet client cannot The Telnet client successfully established a
logon to a host connection to the host, but could not logon.
The user may call you, as host system manager,
to verify that the logon account and passwords
are correct and to see if the system limits are
set such that new Telnet sessions are
prohibited.
The Telnet server cannot The Telnet client successfully established a
run an application Telnet connection and logs on to the host
system. But, when the user runs the
application, the software behaves oddly or it
produces error messages. If you receive a call
about this problem, you or the user can consult
the Asynchronous Serial Communications
Programmer's Reference Manual (32022-61001) to
see if the application is attempting to use
file system instrinsics that the Telnet server
doesn't support. Or have the user and his or
her system manager check the set and toggle
values on their system to make sure they are
the values required by the application.
Invalid command The Telnet client user entered an invalid
command at the Telnet prompt. Type a question
mark (?) to display a list of valid commands.