NAS Installation - Synology DSM 7.4

Upgrade from DSM 6.4

First upgrade to DSM 7.0 through Control Panel
Go to the Synology Download Center, Select product type and Select your Synology Product, then Select DSM version currently installed and the latest DSM version offered for this product as a target DSM version
Upload the downloaded update file in Control Panel –> Update & Restore –> Manual DSM Update and start the update
The update should run without issues, after which there are a few extensions which are obsolete and which you can uninstall

KMIP for key management

Follow the guide to install KMIP on a Synology NAS server and client
What this guide does not mention is how to generate working certificates for DSM 7.4 and later, which hardened the certificate requirements. You will generate matching certificates from an official Synology script, which will be installed alongside the default certificates, and are valid for 10 years. These certificates also work for Synology clients, when added to a KMIP Server (PyKMIP) not hosted on a synology NAS.
1. The default, out-of-the-box self-signed Synology certificate will fail on DSM 7.4
2. Login to your NAS on the command line with SSH and elevate to root
3. Download Synology's official KMIP certificate script:
```
wget supweb.synology.com/support_web/kc_tool/how_to_gen_cert_for_kmip_services/gen_kmip_certs.sh
```
4. Run the script as root:
```
bash gen_kmip_certs.sh kmip_certs
```
  The second parameter kmip_certs is the name of a shared folder the script will create to store the certificates
5. Upload the generated scripts in /volume1/kmip_certs to your local computer you use to access your DSMs through your web browser, after which you can remove the shared folder and it's content
6. The script will generate the following certificates:
```
ca-key.pem
ca.pem
client-fullchain.pem
client-key.pem
client.pem
server-fullchain.pem
server-key.pem
server.pem
```
7. On the server NAS
  - go to Control Panel > Security > Certificate
  - Click Add, choose Import Certificate, and upload:
    - Private key: server-key.pem
    - Certificate: server.pem
    - Leave Intermediate certificate empty
  - Click Settings (in the Certificate tab), find the KMIP dropdown menu, select this new server certificate, and click OK
  - Go to Control Panel > Security > KMIP and select Set as remote key server
  - Under Manage Client Connection, click Manage > Add
  - Upload the client files you generated:
    - Client certificate: client.pem
    - Certificate authority: ca.pem
  - Add a port forward for port 5696 to your server NAS
8. On the client NAS
  - go to Control Panel > Security > Certificate
  - Click Add, choose Import Certificate, and upload:
    - Private key: client-key.pem
    - Certificate: client.pem
    - Leave Intermediate certificate empty
  - Click Settings (in the Certificate tab), find the KMIP dropdown menu, select this new client certificate, and click OK
  - Go to Control Panel > Security > KMIP and select Set as remote key client
  - Enter the server's IP address and port 5696
  - Upload the certificate authority file ca.pem and click Next, they client will not attempt to connect to the server

Table of Contents

NAS Installation - Synology DSM 7.4

Upgrade from DSM 6.4

KMIP for key management

Links