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examples/features/advancedtls/README.md

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+# gRPC Advanced Security Examples
+This repo contains example code for different security configurations for grpc-go using `advancedtls`.
+
+The servers run a basic echo server with the following setups:
+* Port 8885: A server with a good certificate using certificate providers and crl providers.
+* Port 8884: A server with a revoked certificate using certificate providers and crl providers.
+* Port 8883: A server running using InsecureCredentials.
+
+The clients are designed to call these servers with varying configurations of credentials and revocation configurations.
+* mTLS with certificate providers and CRLs
+* mTLS with custom verification
+* mTLS with credentials from credentials.NewTLS (directly using the tls.Config)
+* Insecure Credentials
+
+## Building and Running
+```
+# Run the server
+$ go run server/main.go -credentials_directory $(pwd)/creds
+# Run the clients from the `grpc-go/examples/features/advancedtls` directory
+$ go run client/main.go -credentials_directory $(pwd)/creds
+```
+
+Stop the servers with ctrl-c or by killing the process.
+
+## Developer Note - Generate the credentials used in the examples
+The credentials used for these examples were generated by running the `examples/features/advancedtls/generate.sh` script.
+
+If the credentials need to be re-generated, run `./generate.sh` from `/path/to/grpc-go/examples/features/advancedtls` to re-create the `creds` directory containing the certificates and CRLs needed for these examples.