pfsense_update_services_dns_forwarder_host_override_alias

WHAT IT DOES

What pfsense_update_services_dns_forwarder_host_override_alias does on Pfsense

AI agents use pfsense_update_services_dns_forwarder_host_override_alias to create or update resources in Pfsense — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Pfsense environment.

WHY IT NEEDS A POLICY

Why pfsense_update_services_dns_forwarder_host_override_alias needs a policy

This tool modifies DNS forwarder configuration (host override aliases), which is a reversible Write operation. However, the severity is high rather than medium because DNS configuration changes can disrupt network operations, affect all clients relying on that firewall, and potentially redirect traffic to malicious destinations if misused by a compromised AI agent. The empty description lowers confidence slightly (0.

From the tool's definition Tool name includes 'update' and operates on DNS forwarder host override settings in pfSense, a critical network infrastructure component.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

pfsense_update_services_dns_forwarder_host_override_alias Rate-limited

pfsense_update_services_dns_forwarder_host_override_alias stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "pfsense_update_services_dns_forwarder_host_override_alias": {
      "limits": [
        {
          "counter": "pfsense_update_services_dns_forwarder_host_override_alias_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Pfsense, so you can run agents against it safely.

FAQ

Questions about pfsense_update_services_dns_forwarder_host_override_alias

What does the pfsense_update_services_dns_forwarder_host_override_alias tool do? +

pfsense_update_services_dns_forwarder_host_override_alias. It is categorised as a Write tool in the Pfsense MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on pfsense_update_services_dns_forwarder_host_override_alias? +

Register the Pfsense MCP server in PolicyLayer and add a rule for pfsense_update_services_dns_forwarder_host_override_alias: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Pfsense. Nothing to install.

What risk level is pfsense_update_services_dns_forwarder_host_override_alias? +

pfsense_update_services_dns_forwarder_host_override_alias is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit pfsense_update_services_dns_forwarder_host_override_alias? +

Yes. Add a rate_limit block to the pfsense_update_services_dns_forwarder_host_override_alias rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block pfsense_update_services_dns_forwarder_host_override_alias completely? +

Set action: deny in the PolicyLayer policy for pfsense_update_services_dns_forwarder_host_override_alias. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides pfsense_update_services_dns_forwarder_host_override_alias? +

pfsense_update_services_dns_forwarder_host_override_alias is provided by the Pfsense MCP server (abl030/pfsense-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.