This article provides a centralized reference for configuring network settings across various
HEIMDAL products. Use the links below to jump directly to the configuration details for specific
products. The products covered in this article are: DNS Security - Network, Email Security, Ransomware Encryption Protection, Network OS Deployment, M365 User Security, and the External Firewalls.
Below is a quick-jump index that should help you get to the settings area of each product.
1. DNS Security - Network
2. Email Protection
3. Ransomware Encryption Protection
4. Network OS Deployment
5. M365 User Security
EXTERNAL FIREWALL EXCLUSIONS
The External Firewall integration streamlines security operations by ingesting alerts from third-party appliances—starting with Meraki—directly into the Heimdal TAC (Threat-hunting and Action Center). This centralized approach transforms previously isolated, noisy logs into actionable MXDR signals, correlating firewall events with existing endpoint and user data to eliminate alert fatigue.
The dedicated External Firewall Exclusions section, found under Network Settings -> External Firewall Exclusions tab, enables users to manage firewall exclusion rules created either from the TAC portal (External Firewall Action Center, Aggregated Notifications, or Notifications views) or directly within this view.Add new exclusion - users can create a new exclusion by clicking Add new exclusion, which opens a configuration view where all rule details can be defined.
Edit exclusion – clicking the pen icon in the grid opens the current configuration of an exclusion. Users can update the settings and save the changes or select Cancel to exit without applying modifications.
Delete exclusion - when clicking Delete, users are prompted with a confirmation dialog. The exclusion is removed only when Yes is selected.
The grid in the External Firewall Exclusions tab is fully searchable (by primary or secondary criteria value) and also supports exporting all exclusions to a CSV file.