https://github.com/samrocketman/monitoring-scripts

A repository for housing scripts I use for monitoring.
https://github.com/samrocketman/monitoring-scripts

Last synced: about 2 months ago
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A repository for housing scripts I use for monitoring.

• Host: GitHub
• URL: https://github.com/samrocketman/monitoring-scripts
• Owner: samrocketman
• License: mit
• Created: 2020-06-02T01:48:09.000Z (about 6 years ago)
• Default Branch: main
• Last Pushed: 2020-10-18T07:12:04.000Z (over 5 years ago)
• Last Synced: 2025-02-24T08:13:34.782Z (over 1 year ago)
• Language: Shell
• Size: 10.7 KB
• Stars: 1
• Watchers: 3
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# Monitoring Scripts

This script houses monitoring plugins I use in systems monitoring.  In many

cases, the scripts here are an updated version from my former employer, [Drexel

University][drexel].

# SSL certificate chain monitoring

SSL certificate chain monitoring requires the following prerequisites.

- bash shell

- OpenSSL

- GNU Awk (available on Mac through homebrew)

- BSD date or GNU date

The following script monitors certificate chains and reports the current status.

    ./ssl_chain_expiration.sh example.com

Checks an entire certificate chain of a remote service and alerts via exit code

and stdout if any certificate in the remote chain is nearly expired (within 60

days) or expired.

Exit states:

- `0` - success, entire certificate chain is valid for at least 60 days.

- `1` - warning, one of the certificates in the chain has less than 60 days

  before expiration.

- `2` - critical, one of the certificates in the chain has expired.

See the full range of options in the help text.

    ./ssl_chain_expiration.sh --help

[drexel]: https://github.com/samrocketman/drexel-university