ISpy v1.0

ISpy is a network monitoring tool for Linux and Unix systems. It watches a user-defined set of ports and sends an email alert when any of the monitored ports changes status.

ISpy depends on the following:

• Perl - Version 5
• IO::Socket - Socket library included with Perl 5
• Getopt::Long - Perl command line option parser, available from https://metacpan.org/pod/Getopt::Long
• mail - Standard unix mailer, must support the -s (subject) option and must accept message (the standard Unix mail command should suffice)

Installation

1. Make sure the prerequisites mention in the previous section have been installed.
2. Copy ispy to a directory in your path (e.g. /usr/bin)
3. Copy ispy.1 to a directory in your manpath (e.g. /usr/man/man1)
4. Copy ispy.conf.5 and ispy.state.5 to a directory in your manpath (e.g. /usr/man/man1)
5. Copy ispy.conf to /etc (or another location, see ispy.1 for details) and edit it as appropriate (see ispy.conf.5).
6. Initialie ISpy by running 'ispy --reset'
7. Add an entry for ISpy in /etc/crontab Note that if the configuration and state files reside somewhere other than /etc then you may have to specify their locations on the command line using the -c and -s options.
   */1 * * * * username /usr/bin/perl /usr/bin/ispy
   See crontab(5) for details on doing this.

See the ispy.1 manpage for details.

See also the ispy.conf.5 and ispy.state.5 manpages.

• v1.0 - First public release (July 30, 2001)

This program is free software; you can redistribute it and/or modify it under the terms of version 2 of the GNU General Public License as published by the Free Software Foundation.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to:

Free Software Foundation, Inc.
59 Temple Place
Suite 330
Boston, MA 02111-1307, USA.