Black Box LES1232A, LES1332A Pmusers, Portmanager daemon, Signals, External Scripts and Alerts

For more information on using chat (and pmchat) you should consult the UNIX man pages:

http://techpubs.sgi.com/library/tpl/cgibin/getdoc.cgi?coll=linux&db=man&fname=/usr/share/catman/

man8/chat.8.html

pmusers

The pmusers command is used to query the portmanager for active user sessions. Example: To detect which users are currently active on which serial ports:

# pmusers

This command will output nothing if there are no active users currently connected to any ports. Otherwise, it will respond with a sorted list of usernames per active port:

Port 1:

user1

user2

Port 2:

user1

Port 8:

user2

The above output indicates that a user named “user1” is actively connected to ports 1 and 2, while “user2” is connected to both ports 1 and 8.

portmanager daemon

There is normally no need to stop and restart the daemon. To restart the daemon normally, just run the command:

# portmanager

Supported command line options are:

Force portmanager to run in the foreground: --nodaemon

Set the level of debug logging: --loglevel={debug,info,warn,error,alert}

Change which configuration file it uses: -c /etc/config/portmanager.conf

Signals

Sending a SIGHUP signal to the portmanager will cause it to re-read its configuration file

15.2.2 External Scripts and Alerts

The portmanager can execute external scripts on certain events.

When the portmanager opens a port:

-It attempts to execute /etc/config/scripts/portXX.init (where XX is the number of the port, e.g. 08). The script is run with STDIN and STDOUT both connected to the serial port.

-If the script cannot be executed, then portmanager will execute /etc/config/scripts/portXX.chat via the chat command on the serial port.

When an alert occurs on a port:

_____________________________________________________________________

724-746-5500 blackbox.com Page 246