Tripp Lite B093-004-2E4U-V Owner's Manual

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15. Advanced Conﬁguration

# pmusers --disconnect -u robertw -u pchunt -n 4 -n 6

Disconnect users robertw, pchunt from ports 4, 6? (y/n)

10 sessions were disconnected

# pmusers --disconnect -u tester --no-prompt

No sessions were disconnected

portmanager daemon

There is normally no need to stop and restart the daemon. To restart the daemon normally, simply 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 reread its conﬁguration ﬁle.

15.2.2 External Scripts and Alerts

The portmanager has the ability to execute external scripts on certain events.

When a port is opened by the portmanager:

• 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, portmanager will execute /etc/conﬁg/scripts/portXX.chat via the chat command on the

serial port.

When an alert occurs on a port:

• When an alert occurs on a port, the portmanager will attempt to execute /etc/conﬁg/scripts/portXX.alert (where XX is the

port number, e.g. 08).

• The script is run with STDIN containing the data that triggered the alert, and STDOUT redirected to /dev/null, NOT to the

serial port. If you wish to communicate with the port, use pmshell or pmchat from within the script.

• If the script cannot be executed, the alert will be mailed to the address conﬁgured in the system administration section.

When a user connects to any port:

• If a ﬁle called /etc/conﬁg/pmshell-start.sh exists, it will run when a user connects to a port. It provides two arguments: the

“Port number” and the “Username”. For example:

</etc/conﬁg/pmshell-start.sh >

#!/bin/sh

PORT=”$1”

USER=”$2”

echo “Welcome to port $PORT $USER”

< /etc/conﬁg/pmshell-start.sh>

• The return value from the script controls whether the user is accepted or not, if 0 is returned (or nothing is done on exit as in

the above script) the user is permitted, otherwise the user is denied access.

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Tripp Lite B093-004-2E4U-V 4-Port Console Server with 4G LTE Cellular Gateway, Dual GbE NIC, 4Gb Flash and Dual SIM