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annotate mod_telnet_tlsinfo/README.markdown @ 4651:8231774f5bfd

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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 957e87067231
children
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1 ---
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2 labels:
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3 - 'Stage-Obsolete'
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4 summary: Telnet command for showing TLS info
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5 ---
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7 Introduction
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8 ============
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9
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10 This module adds two commands to the telnet console, `c2s:showtls()` and
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11 `s2s:showtls()`. These commands shows TLS parameters, such as ciphers
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12 and key agreement protocols, of all c2s or s2s connections.
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14 Configuration
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15 =============
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17 Just add the module to the `modules_enabled` list. There is no other
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18 configuration.
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19
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20 modules_enabled = {
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21 ...
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22 "telnet_tlsinfo";
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23 }
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25 Usage
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26 =====
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28 Simply type `c2s:showtls()` to show client connections or
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29 `s2s:showtls()` for server-to-server connections. These commands can
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30 also take a JID for limiting output to matching users or servers.
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32 s2s:showtls("prosody.im")
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33 | example.com -> prosody.im
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34 | protocol: TLSv1.1
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35 | cipher: DHE-RSA-AES256-SHA
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36 | encryption: AES(256)
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37 | algbits: 256
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38 | bits: 256
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39 | authentication: RSA
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40 | key: DH
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41 | mac: SHA1
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42 | export: false
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44 Field Description
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45 ---------------- -------------------------------------------------------------------------------------------------
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46 protocol The protocol used. **Note**: With older LuaSec, this is the protocol that added the used cipher
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47 cipher The OpenSSL cipher string for the currently used cipher
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48 encryption Encryption algorithm used
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49 bits, algbits Secret bits involved in the cipher
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50 authentication The authentication algorithm used
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51 mac Message authentication algorithm used
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52 key Key exchange mechanism used.
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53 export Whethere an export cipher is used
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54
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55 Compatibility
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56 =============
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57
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58 --------------------- ------------------
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59 0.9 with LuaSec 0.5 Works
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60 0.10 Merged into core
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61 --------------------- ------------------