3Com MSR 50 Series Configuration Manual page 804

804 C 53: T
HAPTER ERMINAL
A T
CCESS ROUBLESHOOTING
Now, you can press the test hotkey on the terminal. If the TCP connection
between the terminal and the Unix server is correct, the terminal screen displays
"Terminal to Unix test OK!". This means a TCP connection has been established
between the application used by the terminal and the ttyd program on the UNIX
server, and the terminal can communicate with the server normally. Refer to
an active terminal, verify the configuration of system file inittab" on page 804
detailed information.
If the terminal does not display "Terminal to Unix test OK!", no TCP connection
has been established between the application used by the terminal and the ttyd
program on the Unix server, or the corresponding pseudo terminal on the Unix
server is not operating normally. Refer to
router and ttyd program of the server" on page 805
2 Verify terminal TCP connectivity with the echo command
First, confirm the pseudo terminal ttypxx on the Unix server corresponding to the
terminal by using the configuration file ttyd.conf. Then, execute the following
command on the Unix server:
# echo "123456789" > /dev/ttypxx
This command sends the string 123456789 to the terminal ttypxx (xx indicates the
terminal index).
If the string appears on the terminal, a TCP connection has been established
between the application used by the terminal and the ttyd program on the Unix
server, and the terminal can communicate with the server normally. Refer to
an active terminal, verify the configuration of system file inittab" on page 804
detailed information.
If the string does not appear on the terminal, no TCP connection has been
established between the application used by the terminal and the ttyd program on
the Unix server, or the corresponding pseudo terminal on the Unix server is not
operating normally. Refer to the
and ttyd program of the server" on page 805
For an active terminal, verify the configuration of system file inittab
An active terminal is a pseudo terminal that pushes the login interface.
1 The inittab system file configuration is not correct.
First, find in the configuration file ttyd.conf on the Unix server the pseudo terminal
that corresponds to the terminal, ttyp50 for example. Then, edit the file
/etc/inittab and check whether the file contains the following line:
C50:234:respawn:/etc/getty ttyp50 m
If the line is absent, add it.
Execute the init q command to bring the configuration into effect.
# init q
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for detailed information.
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for detailed information.
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