> For the complete documentation index, see [llms.txt](https://docs.oneweb.tech/oneweb/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.oneweb.tech/oneweb/design-and-develop-oneweb-apps/design-and-implement-security-and-compliance/logging-and-audit-logging.md).
# Logging and Audit logging
Logs monitoring in ONEWEB follows multiple levels. In microservice of ONEWEB, it uses ELK for centralized logging.
* ONEWEB has the write log pattern section stored in property file.
ONEWEB 4.0 provide logging feature using log4j library. It is very simple to configure log level in the property file log4j.properties and then go to ONEWEB 4.0 constants to configure the path for the output log file. Example file log4j.properties
log4j.properties
* ONEWEB uses tools that helps in reading the log and storing data only for the part of the item that needs to be stored.
* We send log data to be stored at the central repository.
* Then it can be visualized for analysis as shown in Figure below.
Logging using ELK
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