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N2OS
N2OS 24.2.0
Protocols, Smart Polling, and Arc
A list of the improvements for Protocols, Smart Polling and Arc that have been introduced in this release.

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  - Arc
  - N2OS
    - N2OS 24.3.1
    - N2OS 24.3.0
    - N2OS 24.2.0
      - Highlights
        An overview of the most impactful changes in this release.
      - Updates in upcoming releases
        Important changes in future releases that might require additional steps or planning during upgrade.
      - Base OS
        A list of the improvements for the operating system and GUI usability changes that have been introduced in this release.
      - Reports and integrations
        A list of improvements for the queries, assertions and reports, and new developments for data and firewall integrations that have been introduced in this release.
      - Protocols, Smart Polling, and Arc
        A list of the improvements for Protocols, Smart Polling and Arc that have been introduced in this release.
      - CMC, Remote Collector, and AAA
        A list of the improvements for the CMC, Remote Collector and Authentication, Authorization and Accounting that have been introduced in this release.
      - Contents and detection
        A list of the improvements for the Contents and Detection that have been introduced in this release.
      - Resolved issues
        A list of the bugs and defects that have been addressed in this release.
      - Security fixes
        A list of security problems that have been addressed in this release.
      - Update path requirements
        Follow these instructions to have a smooth upgrade experience.
    - N2OS 24.1.0
    - N2OS 24.0.0
    - N2OS 23.4.1
    - N2OS 23.4.0
    - N2OS 23.3.1
    - N2OS 23.3.0
    - N2OS 23.2.0
    - N2OS 23.1.0
    - N2OS 23.0.0
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Protocols, Smart Polling, and Arc

A list of the improvements for Protocols, Smart Polling and Arc that have been introduced in this release.

A new "Deployment Settings" tab is available under Arc menu to set the default configuration for downloaded or deployed Arc sensors.
Fixed an issue where a valid dynamic host configuration protocol (DHCP) packet would cause a false positive alert of type SIGN:MALFORMED-TRAFFIC.
Various changes have been applied to the Lua SDK to define custom scriptable protocols. Scriptable protocols can now be defined as extensions to built-in protocols. The sessions application programming interface (API) has been extended. The support for logging error messages has been improved. The scriptable protocols can now set function codes both numerically and with textual descriptions. The scriptable protocols can now leverage multithreading. The RtuId object has been renamed to Namespace. A safety mechanism has been introduced, which denies the execution of scriptable protocols if the intrusion detection system (IDS) process has crashed repeatedly. Refer to the documentation for more information.
Protocol configuration lines ("probe") will be stored in the configuration when sent via the command-line interface (CLI) but their effect is deferred until the restart of the IDS.
The Smart Polling activity log now displays IPv6 addresses in a cleaner way.
Improved the accuracy for DNS links tagging.
The asset view now shows add-on badges indicating to users whether a specific add-on has enriched or could possibly enrich the asset. Specific asset fields named is_ai_enriched, is_arc_enriched, is_sp_enriched, is_ti_enriched are introduced to support the badges. These can be read through queries and can be used to build aggregated statistics.
Nodes affected by the check_multiple_macs_same_ip feature are no longer unintentionally kept alive by certain kind of packets, such as address resolution protocol (ARP) messages.
Arc is now deployed under /usr/local/sbin on Linux and macOS hosts, granting for support on RedHat Linux enterprise 9.3.