ActiveXperts Network Monitor
Monitor servers, workstations, devices and applications in your network

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Monitor an SMTP mail server running on Linux using an SSH Secure Shell Script

The following script can be used in ActiveXperts Network Monitor to check an SMTP mail server on a remote LINUX machine:

#################################################################################
# ActiveXperts Network Monitor  - shell script checks
# © 1999-2008, ActiveXperts Software B.V.
#
# For more information about ActiveXperts Network Monitor and SSH, please
# visit the online ActiveXperts Network Monitor Shell Script Guidelines at:
#   http://www.activexperts.com/support/network-monitor/online/linux/
#################################################################################

#!/bin/sh

# Validate number of arguments
if [ $# -ne 1 ] ; then
echo "UNCERTAIN: Invalid number of arguments  Usage: smtp_server "
exit 1
fi

#Checks the connection
sleep 1 | nc $1 25 2>&1 |  awk '
  { if ( $1 == "220") 
	  printf( "SUCCESS: SMTP server is available, response=[%s] DATA: 1\r\n", $0 );
	else
	  printf( "ERROR: SMTP server is not available, response=[%s] DATA: 1\r\n", $0 );
  }';