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--- |
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labels: |
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- Stage-Beta |
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summary: "Fast Authentication Streamlining Tokens" |
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--- |
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This module implements a mechanism via which clients can exchange a password |
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for a secure token, improving security and streamlining future reconnections. |
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At the time of writing, the XEP that describes the FAST protocol is still |
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working its way through the XSF standards process. You can [view the FAST XEP |
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proposal here](https://xmpp.org/extensions/inbox/xep-fast.html). |
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This module depends on [mod_sasl2]. |
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## Configuration |
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| Name | Description | Default | |
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|---------------------------|--------------------------------------------------------|-----------------------| |
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| sasl2_fast_token_ttl | Default token expiry (seconds) | `86400*21` (21 days) | |
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| sasl2_fast_token_min_ttl | Time before tokens are eligible for rotation (seconds) | `86400` (1 day) | |
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The `sasl2_fast_token_ttl` option determines the length of time a client can |
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remain disconnected before being "logged out" and needing to authenticate with |
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a password. Clients must perform at least one FAST authentication within this |
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period to remain active. |
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The `sasl2_fast_token_min_ttl` option defines how long before a token will be |
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rotated by the server. By default a token is rotated if it is older than 24 |
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hours. This value should be less than `sasl2_fast_token_ttl` to prevent |
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clients being logged out unexpectedly. |