Server Configuration to Require Secure Client Connections

To make the server restrict access to clients over SSL only, add the REQUIRE SSL clause to the user’s GRANT statement, for example:

SQL

GRANT all ON *.* TO 'user'@'%' REQUIRE SSL;

For example, if REQUIRE SSL is specified for the user user:

Shell

## This connection attempt is rejected with an "Access denied" error:
mysql -u user -h 1.2.3.4

Shell

## This one works:
mysql -u user -h 1.2.3.4 --ssl-ca=ca-cert.pem

Unless the client is configured properly, the client may or may not use SSL to connect to SingleStore even if SSL is enabled on the SingleStore cluster. Adding REQUIRE SSL helps protect against misconfigured clients by preventing them from connecting over an insecure plaintext connection. However, proper client configuration is still necessary for security against active network attacks, regardless of server configuration. See Client Configuration for Secure Client Connections.

Last modified: September 4, 2024

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Verification instructions

Note: You must install cosign to verify the authenticity of the SingleStore file.

Use the following steps to verify the authenticity of singlestoredb-server, singlestoredb-toolbox, singlestoredb-studio, and singlestore-client SingleStore files that have been downloaded.

You may perform the following steps on any computer that can run cosign, such as the main deployment host of the cluster.

(Optional) Run the following command to view the associated signature files.
Shell
```
curl undefined
```
Download the signature file from the SingleStore release server.
- Option 1: Click the Download Signature button next to the SingleStore file.
- Option 2: Copy and paste the following URL into the address bar of your browser and save the signature file.
- Option 3: Run the following command to download the signature file.
  Shell
```
curl -O undefined
```

After the signature file has been downloaded, run the following command to verify the authenticity of the SingleStore file.

Shell

echo -n undefined |
    cosign verify-blob --certificate-oidc-issuer https://oidc.eks.us-east-1.amazonaws.com/id/CCDCDBA1379A5596AB5B2E46DCA385BC \
      --certificate-identity https://kubernetes.io/namespaces/freya-production/serviceaccounts/job-worker \
      --bundle undefined \
      --new-bundle-format -

Verified OK