Filter functions
The following functions may be used in the filter statement, as described in Filters.
Filter functions available in AxoSyslog
| Name | Description |
|---|---|
| facility() | Filter messages based on the sending facility. |
| filter() | Call another filter function. |
| host() | Filter messages based on the sending host. |
| in-list() | File-based whitelisting and blacklisting. |
| level() or priority() | Filter messages based on their priority. |
| match() | Use a regular expression to filter messages based on a specified header or content field. |
| message() | Use a regular expression to filter messages based on their content. |
| netmask() or netmask6() | Filter messages based on the IP address of the sending host. |
| program() | Filter messages based on the sending application. |
| rate-limit() | Limits messages rate based on arbitrary keys in each message. |
| source() | Select messages of the specified AxoSyslog source statement. |
| tags() | Select messages having the specified tag. |
Last modified March 21, 2025: Merge pull request #117 from axoflow/sync-to-r2 (6fb1861)