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check_ssl_expiration.php

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0 votes
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Current Version
1.0.0
Last Release Date
2016-07-13
Compatible With
  • Nagios 4.x
  • Nagios XI
Owner
Hits
2025
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This plugin can be used to check SSL certificate expiration for a given IP address or range of IP addresses.

check_ssl_expiration.php - v1.0.0
Copyright (c) 2016 Matthew Capra, Nagios Enterprises
Under GPL v2 License

This plugin checks the expiration date of an SSL certificate on a remote host (or group of hosts)

Usage: check_ssl_expiration.php -h | -a [-c ] [-w ]
NOTE: -a must be specified

Options:
-h
Print this help and usage message
-a
The address (or block) we wish to check
-t
The timeout for our checks (seconds), default is 5. If you're scanning an awful lot of IPs, try setting this to 1 or lower.
-w
Expiration time warning status (days), default 30
-c
Expiration time critical status (days), default 15

This plugin will use openssl to check a target certificate's expiration date.
Example:
$./check_ssl_expiration.php -a 172.217.4.96 -w 90
$./check_ssl_expiration.php -a 172.217.4.96/27 -t 2 -w 90 -c 30
$./check_ssl_expiration.php -a 172.217.4.96,172.217.4.97,172.217.4.124 -t 2 -w 90 -c 30