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Operating Systems AIX Discover the program that use serial port (Sherlock Holmes Case) Post 303000237 by bakunin on Friday 7th of July 2017 04:44:21 AM
Old 07-07-2017
A few other ideas:

- there is only a limited number of ttys. Try the fuser command on all of them to find out which process(es) is(are) using it. The examine the found processes.

- if you feel confident enough you can also use kdb (kernel debugger) to examine the processes properties although you will have to find out the details yourself, i don't have the documentation at hand.

- receiving data from a tty means there has to be a physical serial connection to the server. check that and find out the corresponding tty device to further limit the number of devices to examine if you have physical access to the server.

I hope this helps.

bakunin

Last edited by bakunin; 07-08-2017 at 09:07 AM..
This User Gave Thanks to bakunin For This Post:
 

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SHOWCONSOLE(8)						       The SuSE boot concept						    SHOWCONSOLE(8)

NAME
Showconsole - determines the underlying tty of stdin Setconsole - sets the underlying tty of /dev/console SYNOPSIS
showconsole [-n] setconsole /dev/tty<xy> < /dev/console DESCRIPTION
showconsole determines the underlying character device of the current stdin. This can be used on /dev/console as current character device to get the real character device back. setconsole sets the underlying tty of the system console /dev/console. This requires that the standard input is identical with /dev/con- sole and exactly one argument, a valid character device is given. OPTIONS
-n Return the major and minor device numbers instead of the device file name. This can be used to asked the kernel for the major and minor device numbers of a not existing device file in /dev. BUGS
showconsole needs a mounted /proc file system and tries to set the controlling tty to stdin if no controlling tty is found. After reading /proc the status of the controlling tty is restored to avoid problems with getty processes. FILES
/proc/<pid of showconsole>/stat the stat file of the showconsole process. /dev/console the system console. SEE ALSO
blogd(8), console(4), tty(4), proc(5). COPYRIGHT
2000 Werner Fink, 2000 SuSE GmbH Nuernberg, Germany. AUTHOR
Werner Fink <werner@suse.de> 3rd Berkeley Distribution Nov 10, 2000 SHOWCONSOLE(8)
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