File

mod_limit_auth/README.markdown @ 5181:2c6acf2d6fd4

mod_http_oauth2: Fix removal of consumed authorization codes Fixes mod_http_oauth2.lua:34: bad argument #2 to 'difftime' (number expected, got nil) The extra preceding argument to :set stored the client-id#code as a value instead of clearing the key, and then later in the periodic cleanup timer this string would be indexed, producing a nil and a traceback
author Kim Alvefur <zash@zash.se>
date Wed, 01 Mar 2023 21:11:48 +0100
parent 2121:4916c1b6517f
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---
summary: Throttle authentication attempts with optional tarpit
...

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

This module lets you put a per-IP limit on the number of failed
authentication attempts.

It features an optioanal
[tarpit](https://en.wikipedia.org/wiki/Tarpit_%28networking%29), i.e.
waiting some time before returning an "authentication failed" response.

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

``` {.lua}
modules_enabled = {
  -- your other modules
  "limit_auth";
}

limit_auth_period = 30 -- over 30 seconds

limit_auth_max = 5 -- tolerate no more than 5 failed attempts

 -- Will only work with Prosody trunk:
limit_auth_tarpit_delay = 10 -- delay answer this long
```

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

Requires 0.9 or later. The tarpit feature requires Prosody trunk.