system_ntp_servers

List all configured NTP time servers. Use this to check time synchronization configuration.

SERVERTruenas SOURCEspranab/truenas-mcp

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/spranab-truenas-mcp/system-ntp-servers.md

WHAT IT DOES

What system_ntp_servers does on Truenas

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

RISK

Why system_ntp_servers is rated Low

This tool retrieves and displays existing NTP server configuration without creating, modifying, deleting, or executing any operations. It is a pure information-gathering action with minimal security risk. The worst-case scenario of an AI agent misusing this would be to gain knowledge of time server configuration, which poses negligible harm.

From the tool's definition Tool name 'system_ntp_servers' and description 'List all configured NTP time servers' indicate a query/retrieval operation with no modification or side effects.

Risk signalsAdmin/system-level operation

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs system_ntp_servers safely

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

system_ntp_servers Allowed

system_ntp_servers 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": {
    "system_ntp_servers": {}
  }
}

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

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

FAQ

Questions about system_ntp_servers

What does the system_ntp_servers tool do? +

List all configured NTP time servers. Use this to check time synchronization configuration. It is categorised as a Read tool in the Truenas MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on system_ntp_servers? +

Register the Truenas MCP server in PolicyLayer and add a rule for system_ntp_servers: 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 Truenas. Nothing to install.

What risk level is system_ntp_servers? +

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

Can I rate-limit system_ntp_servers? +

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

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

system_ntp_servers is provided by the Truenas MCP server (spranab/truenas-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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