3Com MSR 50 Series Configuration Manual page 779

Terminating ttyd
The ttyd program operates in multi-process mode. After you launch the program,
you may find multiple ttyd processes. You can enter this command to view
information about processes:
# ps -ef | grep ttyd
In one-to-one access mode, ttyd processes are in a two-tier process architecture,
where the main process is parent process 1 and the others are child processes.
When you launch a ttyd program, a ttyd main process is started. Whenever a TCP
connection is established between the Unix server and a terminal, a child ttyd
process is started.
# ps -ef | grep ttyd
root 8312 8309
.44 6 /etc/ttyd9010.conf 1026
root 8313 8309
.44 7 /etc/ttyd9010.conf 1028
root 8309 1
The output reveals the relations between the processes:
Process 8309 is the first ttyd process launched, for its parent process is 1.
■
Processes 8312 and 8313 correspond to asynchronous interfaces with the
■
terminal numbers of 6 and 7 on router 10.110.96.44 respectively, and their
parent process is process 8309.
All processes use the default configuration file /etc/ttyd.conf.
■
You can use the kill 8309 command to kill the ttyd process 8309 and all its
■
child processes, that is, all the processes mentioned above.
You can use the kill 8312 command to kill the ttyd child processes
■
corresponding to the pseudo terminal ttyp40.
You are recommended to use the kill command, rather than the kill -9 command,
to kill ttyd processes.
c
CAUTION: With automatic link establishment function configured on the router,
after you kill a child process and then use ps-ef, you may still find a process
corresponding to the same pseudo terminal, which is actually a new process.
Enabling ttyd autorun at system startup
1 Open the file /etc/init.d/ttyd.
# vi /etc/init.d/ttyd
2 Add the following to the file:
case "$1" in
'start')
echo "Start ttyd ..."
# To launch multiple configuration files, list each of them in a line.
/etc/ttyd /etc/ttyd.conf
;;
'stop')
Installing and Configuring SCO OpenServer Server
0 17:06:14 ? 00:00:00 /etc/ttyd ttyp40 10.110.96
0 17:06:15 ? 00:00:00 /etc/ttyd ttyp41 10.110.96
0 17:06:11 ? 00:00:00 /etc/ttyd
779