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mod_limit_auth/README.markdown @ 4203:c4002aae4ad3

mod_s2s_keepalive: Use timestamp as iq @id RFC 6120 implies that the id attribute must be unique within a stream. This should fix problems with remote servers that enforce uniqueness and don't answer duplicated ids. If it doesn't do that, then at least you can get a guesstimate at round-trip time from the difference between the result iq stanza and the timestamp it was logged without having to go look for when it was sent, or needing to keep state.
author Kim Alvefur <zash@zash.se>
date Wed, 14 Oct 2020 18:02:10 +0200
parent 2121:4916c1b6517f
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1 ---
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2 summary: Throttle authentication attempts with optional tarpit
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3 ...
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4
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5 Introduction
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6 ============
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7
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8 This module lets you put a per-IP limit on the number of failed
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9 authentication attempts.
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10
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11 It features an optioanal
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12 [tarpit](https://en.wikipedia.org/wiki/Tarpit_%28networking%29), i.e.
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13 waiting some time before returning an "authentication failed" response.
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14
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15 Configuration
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16 =============
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17
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18 ``` {.lua}
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19 modules_enabled = {
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20 -- your other modules
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21 "limit_auth";
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22 }
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23
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24 limit_auth_period = 30 -- over 30 seconds
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25
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26 limit_auth_max = 5 -- tolerate no more than 5 failed attempts
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27
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28 -- Will only work with Prosody trunk:
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29 limit_auth_tarpit_delay = 10 -- delay answer this long
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30 ```
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31
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32 Compatibility
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33 =============
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34
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35 Requires 0.9 or later. The tarpit feature requires Prosody trunk.