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---
title: Security: Authentication and Encryption
---
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Most security configuration takes place on the <%=vars.product_name%> server. The server's security
framework authenticates clients as they connect to a cache server and authorizes client cache
operations using developer-provided implementations for authentication and authorization.
For an explanation of the server-side implementation of security features,
see [Security](geodeman/managing/security/chapter_overview.html) in the *<%=vars.product_name%> User Guide*.
A Native Client application must address two security concerns when connecting to a <%=vars.product_name%> server:
- **[Authentication](authentication.html)**
The Client must submit its authentication credentials to the server using the developer-provided authentication implementation expected by the server.
- **[TLS/SSL Client/Server Communication Encryption](sslclientserver.html)**
Communication between client and server must be encrypted so authentication credentials and other transmissions cannot be viewed by third-parties.