Checks check ssl

Table of Contents

Check ssl

Script: check_ssl

check_ssl_certs is a plugin to check an ssl connection to a host on given port.

Requirements

  • openssl client

Standalone installation

From this repository you need next to this script:

  • inc_pluginfunctions shared function for all IML checks written in bash

Syntax

Start the script without params to get the help.

______________________________________________________________________

CHECK_SSL
v1.5

(c) Institute for Medical Education - University of Bern
Licence: GNU GPL 3

https://os-docs.iml.unibe.ch/icinga-checks/Checks/check_ssl.html
______________________________________________________________________

Check if ssl certificate of a given domain is still valid.
You can check https or any other port of a ssl enabled service like LDAPS, 
IMPAS and others.

You can customize the values for warning and critical level.

SYNTAX: check_ssl [options] DOMAIN [PORT]

OPTIONS
    -w VALUE  warning level for expiration in days (default: 28)
    -c VALUE  critical level for expiration in days (default: 7)

PARAMETERS
    DOMAIN    domain to verify the ssl vertificate from (required)
    PORT      optional: port number to connect (default: 443)


EXAMPLES

    check_ssl www.iml.unibe.ch 443
        check https port 443

    check_ssl -w 30 -c 14 ldap.example.com 636
        check ldaps port 636 and set custom warning and critical level

Examples

Check Website with https

To check a domain name on port 443 add the domain to connect as parameter. The port number 443 is default and not needed.

./check_ssl www.iml.unibe.ch
OK: www.iml.unibe.ch:443 - valid to Apr 23 00:38:13 2025 GMT (69 days left)

Check Ldaps

./check_ssl ldap.example.com 636
OK: ldap.example.com:636 - valid to Apr  6 00:44:42 2025 GMT (52 days left)