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annotate mod_log_auth/README.markdown @ 5787:e79f9dec35c0

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mod_c2s_conn_throttle: Reduce log level from error->info Our general policy is that "error" should never be triggerable by remote entities, and that it is always about something that requires admin intervention. This satisfies neither condition. The "warn" level can be used for unexpected events/behaviour triggered by remote entities, and this could qualify. However I don't think failed auth attempts are unexpected enough. I selected "info" because it is what is also used for other notable session lifecycle events.
author Matthew Wild <mwild1@gmail.com>
date Thu, 07 Dec 2023 15:46:50 +0000
parents a47520a2c59d
children
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1 ---
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2 labels:
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3 - 'Stage-Stable'
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4 summary: Log failed authentication attempts with their IP address
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5 ...
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6
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7 Introduction
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8 ============
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9
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10 Prosody doesn't write IP addresses to its log file by default for
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11 privacy reasons (unless debug logging is enabled).
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13 This module enables logging of the IP address in a failed authentication
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14 attempt so that those trying to break into accounts for example can be
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15 blocked.
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17 fail2ban configuration
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18 ======================
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19
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20 fail2ban is a utility for monitoring log files and automatically
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21 blocking "bad" IP addresses at the firewall level.
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22
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23 With this module enabled in Prosody you can use the following example
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24 configuration for fail2ban:
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26 # /etc/fail2ban/filter.d/prosody-auth.conf
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27 # Fail2Ban configuration file for prosody authentication
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28 [Definition]
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29 failregex = Failed authentication attempt \(not-authorized\) for user .* from IP: <HOST>
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30 ignoreregex =
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32 And at the appropriate place (usually the bottom) of
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33 /etc/fail2ban/jail.conf add these lines:
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35 [prosody]
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36 enabled = true
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37 port = 5222
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38 filter = prosody-auth
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39 logpath = /var/log/prosody/prosody*.log
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40 maxretry = 6
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42 Compatibility
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43 -------------
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44
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45 ------- --------------
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46 trunk Works
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47 0.9 Works
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48 0.8 Doesn't work
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49 ------- --------------