How Logging Works
Use Logging to enable, manage, and search logs. The three kinds of logs are the following:
Audit logs: Logs related to events emitted by the Oracle Cloud Infrastructure Audit service. These logs are available from the Logging Audit page, or are searchable on the Search page alongside the rest of your logs.
Service logs: Emitted by OCI native services, such as API Gateway, Events, Functions, Load Balancing, Object Storage, and VCN Flow Logs. Each of these supported services has pre-defined logging categories that you can enable or disable on your respective resources.
Custom logs: Logs that contain diagnostic information from custom applications, other cloud providers, or an on-premises environment. Custom logs can be ingested through the API, or by configuring the Unified Monitoring Agent. You can configure an OCI compute instance/resource to directly upload Custom Logs through the Unified Monitoring Agent. Custom logs are supported in both a virtual machine and bare metal scenario.
Read-only logs from the Audit service, provided for you to analyze and search. Audit logs capture the information about API calls made to public endpoints throughout your tenancy. These include API calls made by the Console, Command Line Interface (CLI), Software Development Kits (SDK), your own custom clients, or other Oracle Cloud Infrastructure services.
Log groups are logical containers for logs. Use log groups to streamline log management, including applying IAM policy or searching sets of logs. You can move log groups from one compartment to another and all the logs contained in the log group moves with it.
Service Log CategoryServices provide log categories for the different types of logs available for resources. For example, the Object Storage service supports the following log categories for storage buckets: read and write access events. Read access events capture download events, while write access events capture write events. Each service can have different log categories for resources. The log categories for one service have no relationship to the log categories of another service.
Service Connector Hub
Service Connector Hub moves logging data to other services in Oracle Cloud Infrastructure. For example, use Service Connector Hub to alarm on log data, send log data to databases, and archive log data to Object Storage. For more information, see Service Connector Hub.
Unified Monitoring Agent
The fluentd-based agent that runs on customer machines (OCI instances), to help customers ingest custom logs.
Agent ConfigurationA configuration of the Unified Monitoring Agent that specifies how custom logs are ingested.
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