Firewall

Use IP Address Allowlisting to ensure only a specified set of IP addresses can communicate with your SingleStore Helios cluster.

You can add IP addresses to the firewall allowlist within the cluster:

Log in to the Cloud Portal, and select Clusters.
Select the three dots for your cluster, and then select Access & Security from the list.
Scroll to the Firewall section. This section shows the IP addresses that have been allowlisted for inbound and outbound connections.
To add additional IP addresses, select Edit, and enter the address or range of addresses in the Edit IP Address Access dialog.
Select Save. The cluster will now allow access from the IP address(es) you added.

Last modified: May 11, 2026

Was this article helpful?

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