8eed94b072
* website maintenance round * improve docs, revert bug workaround as it was fixed * boost memory * remove unnecessary code
58 lines
1.9 KiB
Plaintext
58 lines
1.9 KiB
Plaintext
---
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layout: docs
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page_title: Syslog - Audit Devices
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sidebar_title: Syslog
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description: The "syslog" audit device writes audit logs to syslog.
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---
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# Syslog Audit Device
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The `syslog` audit device writes audit logs to syslog.
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It currently does not support a configurable syslog destination, and always
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sends to the local agent. This device is only supported on Unix systems,
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and should not be enabled if any standby Vault instances do not support it.
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~> **Warning**: Audit messages generated for some operations can be quite
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large, and can be larger than a [maximum-size single UDP
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packet](https://tools.ietf.org/html/rfc5426#section-3.1). If possible with your
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syslog daemon, configure a TCP listener. Otherwise, consider using a `file`
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backend and having syslog configured to read entries from the file; or, enable
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both `file` and `syslog` so that a failure for a particular message to log
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directly to `syslog` will not result in Vault being blocked.
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## Examples
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Audit `syslog` device can be enabled by the following command:
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```shell-session
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$ vault audit enable syslog
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```
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Supply configuration parameters via K=V pairs:
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```shell-session
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$ vault audit enable syslog tag="vault" facility="AUTH"
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```
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## Configuration
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- `facility` `(string: "AUTH")` - The syslog facility to use.
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- `tag` `(string: "vault")` - The syslog tag to use.
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- `log_raw` `(bool: false)` - If enabled, logs the security sensitive
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information without hashing, in the raw format.
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- `hmac_accessor` `(bool: true)` - If enabled, enables the hashing of token
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accessor.
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- `mode` `(string: "0600")` - A string containing an octal number representing
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the bit pattern for the file mode, similar to `chmod`.
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- `format` `(string: "json")` - Allows selecting the output format. Valid values
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are `"json"` and `"jsonx"`, which formats the normal log entries as XML.
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- `prefix` `(string: "")` - A customizable string prefix to write before the
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actual log line.
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