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#!/bin/bash
# Extension Attribute to determine the number of failed login attempts during a specified duration
# See: log help show
searchDuration="24h" # [--last <num>[m|h|d] ]
failedLoginAttempts=$( /usr/bin/log show --last "${searchDuration}" --style syslog --predicate 'eventMessage contains "Failed to authenticate user"' | /usr/bin/wc -l | /usr/bin/tr -d ' ' )
echo "<result>$failedLoginAttempts</result>"
exit 0
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