Heimdal DNS Security Endpoint
Blocks endpoint access to malicious and unwanted domains by filtering DNS queries.
"Reduces malware and phishing risk by preventing access to malicious domains and disrupting attacker communications."
Endpoint DNS filtering that blocks resolution of malicious and unwanted domains
DNS is a common vector for malware, phishing and command‑and‑control traffic. Endpoints that can still resolve malicious domains expose users and internal systems to web‑based threats even when other controls are in place.
Heimdal DNS Security Endpoint intercepts DNS requests on the host and blocks resolution of domains identified as malicious or unwanted. That gives teams a host‑level control that acts even when users are off‑network or using external DNS.
For organisations balancing limited security resource and distributed work, adding endpoint DNS filtering reduces reliance on central network controls and helps contain exposure across mixed device estates.
Where Heimdal DNS Security Endpoint is used
Deployment on remote and hybrid workstations where corporate DNS or network controls are not always present. The product enforces DNS policies on the host so users off‑site are still prevented from resolving known malicious domains.
Use alongside endpoint detection and patch management to reduce the chance of secondary compromise. MSPs and small IT teams often use it to add a predictable DNS control across customers or sites without changing network DNS.
Fits within these solutions
Suitable environments
Fits organisations with distributed, multi‑site estates and a significant remote or hybrid workforce where network DNS cannot be consistently enforced.
Also suitable for SMEs and MSPs that lack large in‑house security teams and need a lightweight, host‑level DNS control to lower web‑based risk.
Benefits
Block threats before they reach endpoints
Stops connections to malicious domains early in the attack chain.
Reduce malware and phishing risk
Prevents access to domains used in phishing campaigns and malware delivery.
Limit impact of compromised devices
Disrupts command-and-control communication to contain threats.
Protect users on and off the network
Applies DNS protection regardless of user location, supporting remote and mobile working.
Strengthen layered security
Adds an additional layer of protection alongside endpoint and email security controls.
Increase visibility of DNS activity
Provides insight into attempted connections to risky or malicious domains.
Reduce security incidents
Prevents successful attacks by blocking malicious communications early.
Capabilities
DNS traffic filtering
Real-time threat intelligence
Malicious domain blocking
Command-and-control disruption
Policy-based DNS control
Endpoint-level DNS protection
Centralised management
Reporting and visibility
Applications
Block malicious outbound connections
Used to prevent endpoints from connecting to known malicious or compromised domains.
Prevent access to phishing and malware sites
Stops users from reaching domains used in phishing campaigns or malware distribution.
Protect remote and mobile users
Applies DNS-level protection to users regardless of their location.
Contain compromised devices
Blocks communication with attacker infrastructure to limit the spread of threats.
Add early-stage threat protection
Introduces protection at the DNS layer before threats reach endpoints or applications.
Support Zero Trust network access models
Controls domain access as part of a Zero Trust approach to network and endpoint security.
How we help
Armstrong often helps with implementation, configuration and ongoing product support for Heimdal DNS Security Endpoint. We work with SMBs, MSPs and organisations with remote or distributed workforces, and with teams that do not have large security departments. Engagements are advisory and project‑based and focus on installing, integrating and tuning the product within customers' existing estates.
