Highlights

Alert deduplication

As we highlighted in the release notes of N2OS 23.2.0, a new feature prevents the creation of multiple identical alerts, symplifying the inspection of the alerts and reducing the stress to the system. This feature is now enabled by default and can be configured as detailed in the user manual.

Because configured data integrations including Nozomi alerts transmission will also be affected by the deduplication, Nozomi Networks recommends to check on the integrated endpoints configuration and logics accordingly.

Security improvements to SSH server

We have made significant security improvements to the configuration of our SSH server with the latest update. This includes updating the SSH protocols and ciphers that are accepted by the server to ensure better protection. Due to this update, ssh-rsa keys will no longer be accepted. If you are still using these legacy keys, we recommend uploading new ones before the upgrade.

If you require compatibility with legacy systems, you can switch your SSH configuration to legacy mode. Detailed instructions can be found in chapter 17 of the user manual.