check_ntopng

Check ntopng (network traffic monitoring) reachability via GET /. Default port 3000.

SERVERMcp Nettools SOURCEaaronckj/mcp-nettools

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/aaronckj-mcp-nettools/check-ntopng.md

WHAT IT DOES

What check_ntopng does on Mcp Nettools

AI agents call check_ntopng to retrieve information from Mcp Nettools without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why check_ntopng is rated Low

The tool retrieves status information by making a GET request to a monitoring service endpoint. This is a read-only operation with no side effects, no data modification, and no ability to alter system state. The blast radius is minimal—a failed or successful reachability check cannot harm systems or commit unintended actions.

From the tool's definition Tool performs a GET request to check reachability of ntopng service via GET /. No modification, deletion, or code execution is described. This is a passive health check or status probe.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs check_ntopng safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Mcp Nettools, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For check_ntopng, this is the rule to start with:

check_ntopng Allowed

check_ntopng is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "check_ntopng": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Mcp Nettools, apply this rule, and every check_ntopng call is checked against it from then on.

FAQ

Questions about check_ntopng

What does the check_ntopng tool do? +

Check ntopng (network traffic monitoring) reachability via GET /. Default port 3000. It is categorised as a Read tool in the Mcp Nettools MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on check_ntopng? +

Register the Mcp Nettools MCP server in PolicyLayer and add a rule for check_ntopng: 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 Mcp Nettools. Nothing to install.

What risk level is check_ntopng? +

check_ntopng is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit check_ntopng? +

Yes. Add a rate_limit block to the check_ntopng 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 check_ntopng completely? +

Set action: deny in the PolicyLayer policy for check_ntopng. 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 check_ntopng? +

check_ntopng is provided by the Mcp Nettools MCP server (aaronckj/mcp-nettools). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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