2024-07-19 14:55:23 +02:00
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gomonop - Various monitoring plugins in golang
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==============================================
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2021-02-19 19:28:25 +01:00
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2024-07-19 14:55:23 +02:00
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This project is a collection of various monitoring plugins (such as Nagios,
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Centreon, or Icinga) written in golang. All plugins are available through a
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single executable, `gomonop`. The actual plugin can be selected either
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by creating a symlink to the main executable with the appropriate name or by
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calling the executable directly with the first argument being the name of the
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plugin.
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2021-02-19 19:28:25 +01:00
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2024-07-19 15:20:14 +02:00
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This project is distributed under the terms of the [GPLv3 license](LICENSE).
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Its source code is available on the [Nocternity forge](https://git.nocternity.net/projects/gomonop).
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2021-02-19 19:28:25 +01:00
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Plugins
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--------
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### SSL certificate expiry
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The `check_ssl_certificate` plugin can be used to check that the certificate
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from a TLS service has not expired and is not going to expire shortly. It
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supports the following command-line flags:
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* `-H name`/`--hostname name`: the host name to connect to.
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* `-P port`/`--port port`: the TCP port to connect to.
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* `-W days`/`--warning days`: a threshold, in days, below which a warning will
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be emitted for this service.
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* `-C days`/`--critical days`: a threshold, in days, below which the plugin will
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indicate that the service is in a critical state.
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* `--ignore-cn-only`: do not cause errors if a certificate does not have SANs
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and relies on the CN field.
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* `-a names`/`--additional-names names`: a comma-separated list of DNS names
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that the certificate should also have.
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* `-s protocol`/`--start-tls protocol`: protocol to use before requesting a
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2021-02-27 11:33:28 +01:00
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switch to TLS. Supported protocols: `smtp`, `sieve`.
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2023-11-02 10:24:00 +01:00
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### DNS zone serials
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2021-02-27 11:33:28 +01:00
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The `check_zone_serial` plugin can be used to check that the version of a
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zone served by a DNS is up-to-date compared to the same zone served by
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another, "reference" DNS. It supports the following command-line flags:
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* `-H name`/`--hostname name`: the host name or address of the server to
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check.
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* `-P port`/`--port port`: the port to use on the server to check (defaults
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to 53).
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* `-z zone`: the zone to check.
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* `-r name`/`--rs-hostname name`: the host name or address of the reference
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server.
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* `-p port`/`--rs-port port`: the port to use on the reference server
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(defaults to 53).
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Building from source
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--------------------
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The plugin can be built for the current host OS and architecture using
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`make build`. The actual executable will be created under the `bin` directory,
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in a subdirectory named after the host OS and architecture (e.g.
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`bin/linux-amd64`). The executable will be named `gomonop`, and a
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symlink to the executable for the host OS and architecture will be created
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under the `bin` directory.
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It is possible to build for other architectures using `make build-cross`.
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