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Merge pull request #53571 from ClickHouse/password-complexity-req

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Add password complexity requirements to docs
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robot-ch-test-poll1 2023-08-29 12:42:30 +02:00 committed by GitHub
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docs/en/sql-reference/statements/create/user.md
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@ -40,6 +40,32 @@ There are multiple ways of user identification:
- `IDENTIFIED WITH ssl_certificate CN 'mysite.com:user'`
- `IDENTIFIED BY 'qwerty'`
Password complexity requirements can be edited in [config.xml](/docs/en/operations/configuration-files). Below is an example configuration that requires passwords to be at least 12 characters long and contain 1 number. Each password complexity rule requires a regex to match against passwords and a description of the rule.
```xml
<clickhouse>
<password_complexity>
<rule>
<pattern>.{12}</pattern>
<message>be at least 12 characters long</message>
</rule>
<rule>
<pattern>\p{N}</pattern>
<message>contain at least 1 numeric character</message>
</rule>
</password_complexity>
</clickhouse>
```
:::note
In ClickHouse Cloud, by default, passwords must meet the following complexity requirements:
- Be at least 12 characters long
- Contain at least 1 numeric character
- Contain at least 1 uppercase character
- Contain at least 1 lowercase character
- Contain at least 1 special character
:::
## Examples
1. The following username is `name1` and does not require a password - which obviously doesn't provide much security: