update_ip_address_rdns

Update the RDNS for an IP address of a Linode instance

SERVERLinode MCP Server SOURCEtakashito/linode-mcp-server

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/takashito-linode-mcp-server/update-ip-address-rdns.md

WHAT IT DOES

What update_ip_address_rdns does on Linode MCP Server

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

RISK

Why update_ip_address_rdns is rated Medium

This tool modifies DNS configuration (RDNS records) for an IP address, which is a write operation on cloud infrastructure metadata. While reversible (you can update RDNS again), it has medium severity because incorrect RDNS changes could disrupt email deliverability, service identification, or cause operational issues if an AI agent misconfigures it.

From the tool's definition Tool is named 'update_ip_address_rdns' and described as 'Update the RDNS for an IP address of a Linode instance'.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs update_ip_address_rdns safely

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

update_ip_address_rdns Rate-limited

update_ip_address_rdns 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": {
    "update_ip_address_rdns": {
      "limits": [
        {
          "counter": "update_ip_address_rdns_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about update_ip_address_rdns

What does the update_ip_address_rdns tool do? +

Update the RDNS for an IP address of a Linode instance. It is categorised as a Write tool in the Linode MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on update_ip_address_rdns? +

Register the Linode MCP Server MCP server in PolicyLayer and add a rule for update_ip_address_rdns: 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 Linode MCP Server. Nothing to install.

What risk level is update_ip_address_rdns? +

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

Can I rate-limit update_ip_address_rdns? +

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

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

update_ip_address_rdns is provided by the Linode MCP Server MCP server (takashito/linode-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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