view mod_host_status_check/README.markdown @ 4651:8231774f5bfd

mod_cloud_notify_encrypted: Ensure body substring remains valid UTF-8 The `body:sub()` call risks splitting the string in the middle of a multi-byte UTF-8 sequence. This should have been caught by util.stanza validation, but that would have caused some havoc, at the very least causing the notification to not be sent. There have been no reports of this happening. Likely because this module isn't widely deployed among users with languages that use many longer UTF-8 sequences. The util.encodings.utf8.valid() function is O(n) where only the last sequence really needs to be checked, but it's in C and expected to be fast.
author Kim Alvefur <zash@zash.se>
date Sun, 22 Aug 2021 13:22:59 +0200
parents 2a16a6c67288
children
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---
labels: Stage-Beta
summary: Host status check
...

Introduction
============

This module allows you to monitor the state of hosts and components in your Prosody server. For example,
it will track whether components are connected and (if the component supports it) listen for heartbeats
sent by the component to indicate that it is functioning.

This module does not expose any interface to access the status information itself. See [mod\_http\_host\_status\_check]
for a module that allows you to access host status information over HTTP(S).

Configuration
=============

There are no configuration options for this module.

You should enable it on every host that you want to monitor, by adding it to modules\_enabled. Note
that to monitor components, adding to the global modules\_enabled list will not suffice - you will
need to add it to the component's own modules\_enabled, like this:

``` {.lua}
Component "mycomponent.example.com"
   modules_enabled = { "host_status_check" }
```

Compatibility
=============

Works with Prosody 0.9.x and later.