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#!/bin/bash
# Old style alert program:
#
# Syntax:
# alert_program_name /absolute/path/name
#
# The program specified via 'alert_program_name' will be called as follows:
# /absolute/path/name name_of_calling_program name_of_interface_on_which_the
#_response_was_received IP_source_of_the_response ether_src_of_the_response
DHCP_PROBE_DOMAIN=$(dnsdomainname)
sendmail root <<EOF
From: root@${DHCP_PROBE_DOMAIN}
Subject: $1 ALERT - $3 is acting as a DHCP server
Called program: $0
Calling program: $1
Interface on which response was received: $2
IP source of the response: $3
Ethernet source of the response: $4
EOF
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