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# Service instance configuration

## Docs

- [Service instance configuration overview](https://docs.itential.com/adapters/configure/service-instance-configuration/properties/overview.md): An overview of how adapter properties are defined, configured, and overridden in theItential Platform service instance configuration.
- [Base properties](https://docs.itential.com/adapters/configure/service-instance-configuration/properties/base-properties.md): Reference for the top-level adapter properties that control how the adapter communicates with an external system.
- [Authentication properties](https://docs.itential.com/adapters/configure/service-instance-configuration/properties/authentication-properties.md): Reference for the adapter authentication object properties that control how the adapter authenticates with an external system.
- [SSL/TLS properties](https://docs.itential.com/adapters/configure/service-instance-configuration/properties/ssl-tls-properties.md): Reference for the adapter SSL/TLS object properties that control how the adapter handles secure connections to an external system.
- [Request properties](https://docs.itential.com/adapters/configure/service-instance-configuration/properties/request-properties.md): Reference for the adapter request object properties that control how the adapter handles outbound requests to an external system.
- [Healthcheck properties](https://docs.itential.com/adapters/configure/service-instance-configuration/properties/healthcheck-properties.md): Reference for the adapter healthcheck object properties that control how and when the adapter checks the availability of an external system.
- [Proxy properties](https://docs.itential.com/adapters/configure/service-instance-configuration/properties/proxy-properties.md): Reference for the adapter proxy object properties that control how the adapter routes requests through a proxy server.
- [Throttle properties](https://docs.itential.com/adapters/configure/service-instance-configuration/properties/throttle-properties.md): Reference for the adapter throttle object properties that control request queuing when an external system has load or concurrency limitations.
- [Mongo properties](https://docs.itential.com/adapters/configure/service-instance-configuration/properties/mongo-properties.md): Reference for the adapter mongo object properties that configure a database for storing metrics, throttle queue state, and adapter configuration.
- [Deprecated properties](https://docs.itential.com/adapters/configure/service-instance-configuration/properties/deprecated-properties.md): Reference for adapter properties that are no longer recommended and have been replaced by the .system entity.