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+# Apache HTTPD managed service
+
+1. Install Apache httpd with SSL/TLS support
+```sh
+sudo yum install -y httpd mod_ssl
+```
+
+2. Setup your SSL/TLS configuration as per the [documentation](https://httpd.apache.org/docs/2.4/ssl/ssl_howto.html).
+Post-installation the `mod_ssl` package presents the `ssl.conf` file below. Configure it with your custom directives
+and optionally rename it:
+
+```sh
+sudo mv /etc/httpd/conf.d/ssl.conf /etc/httpd/conf.d/httpd-acm.conf
+```
+
+> NOTE: A minimal TLS/SSL configuration example (as per [documentation)](https://httpd.apache.org/docs/2.4/ssl/ssl_howto.html):
+```sh
+<VirtualHost *:443>
+ServerName www.acm-httpd.example
+SSLEngine on
+SSLProtocol -all +TLSv1.2
+
+SSLCertificateKeyFile ""
+SSLCertificateFile ""
+</VirtualHost>
+```
+
+> NOTE: The `SSLCertificateFile` and `SSLCertificateKeyFile` entries must be present in the configuration enabled and
+at the beginning of the configuration line (as per default `mod_ssl` ssl.conf file). The `nitro-enclaves-acm.service`
+shall scan the configuration file and update them with the correct pkcs#11 URIs after the token gets provisioned with the
+ACM certificate key.
+
+3. Setup ACM for Nitro Enclaves as per the [documentation](https://docs.aws.amazon.com/enclaves/latest/user/nitro-enclave-refapp.html).
+
+> NOTE: Copy the default ACM for Nitro Enclaves httpd service configuration file example:
+```sh
+sudo mv /etc/nitro_enclaves/acm-httpd.example.yaml /etc/nitro_enclaves/acm.yaml
+```
+
+4. Make sure that the `/etc/nitro_enclaves/acm.yaml` file contains the `Conf` directive `path` entry to point at your
+httpd SSL/TLS configuration file from step `2` above.
+After successfully starting the `nitro-enclaves-acm.service`, the enclave shall be up and running with a pkcs#11 token
+provisioned with a private key and the ACM certificate chain.
+
+5. Test that the server works as expected
+```sh
+curl --cacert path_to_pem_file --tlsv1.2 https://host_name_or_IP
+```
+or
+```sh
+curl -k --tlsv1.2 https://host_name_or_IP
+```
+
+> NOTE: If you used a private certificate, you must add the host name to `/etc/hosts` in the following format: `127.0.0.1 host_name`.