Start script when a user starts a remote session Post: 302560622

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Top Forums Shell Programming and Scripting Start script when a user starts a remote session Post 302560622 by kilo90 on Friday 30th of September 2011 11:14:44 AM

09-30-2011

Registered User

Start script when a user starts a remote session

Howdy,

I'm fairly new at bash scripting, but (for some reason) I've been tasked with building a bastion server and logging all (ssh/telnet) remote activity. Each session must create a unique log file - the name of each file must include the user ID, the connection method (ssh/telnet), the name of the remote host, and a time stamp.I have a basic bash script using the script command (see below).

Users authenticate through Active Directory (Winbind) and use a default lshell, local users do not need to be logged. My two questions are:
1. What's the best way to start and stop the script?
2. How do I capture the remote connection method (ssh or telnet) and the name of the remote host for the log file name?

This is what I have as a framework:

Code:

#!/bin/bash

# Capture keystrokes of a user and log

TIMESTAMP=$(date +%m%d%y%H%M%S)
HOST=$(hostname|cut -f1 -d.)
LOGDIR=/var/log/logging
LOGFILE=${HOST}.${LOGNAME}.${TIMESTAMP}
touch $LOGDIR/$LOGFILE

# Set Prompt
export PS1=.[$LOGNAME:$HOST]@..$PWD> .

chown $LOGNAME ${LOGDIR}/${LOGFILE}
chmod 600 ${LOGDIR}/${LOGFILE}

script ${LOGDIR}/${LOGFILE}
chmod 400 ${LOGDIR}/${LOGFILE}

Any help would be greatly appreciated.

Last edited by vbe; 09-30-2011 at 01:00 PM.. Reason: next time, use code tags for your code/data

kilo90

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GNUNET-TESTING(1)					      General Commands Manual						 GNUNET-TESTING(1)

NAME

       gnunet-testing - Command line tool to access the testing library.

SYNOPSIS

       gnunet-testing [options]

DESCRIPTION

       gnunet-testing is a command line tool to access the testing library.

OPTIONS

       -C,  --cfg
	      Create unique configuration files.

       -c FILENAME,  --config=FILENAME
	      Use the configuration file FILENAME.

       -H, --hostkeys
	      Host key file.

       -h, --help
	      Print short help on options.

       -k, --key
	      Create hostkey files from pre-computed hostkey list.

       -L LOGLEVEL, --loglevel=LOGLEVEL
	      Use LOGLEVEL for logging.  Valid values are DEBUG, INFO, WARNING and ERROR.

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	      Configure logging to write logs to LOGFILE.

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       -t, --template
	      Configuration template.

       -v, --version
	      Print GNUnet version number.

BUGS

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