# update_ip_address_rdns

Update the RDNS for an IP address of a Linode instance

Agent View of the PolicyLayer registry record for `update_ip_address_rdns`. HTML page: https://policylayer.com/tools/takashito-linode-mcp-server/update-ip-address-rdns

## Facts

- Tool: `update_ip_address_rdns`
- Server: Linode MCP Server (`takashito/linode-mcp-server`) — https://policylayer.com/tools/takashito-linode-mcp-server.md
- Homepage: https://github.com/takashito/linode-mcp-server
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "update_ip_address_rdns",
    "arguments": {}
  }
}
```

## 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 own definition: "Tool is named 'update_ip_address_rdns' and described as 'Update the RDNS for an IP address of a Linode instance'."

## Use case

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.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Linode MCP Server:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "update_ip_address_rdns": {
      "limits": [
        {
          "counter": "update_ip_address_rdns_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Linode MCP Server (415)

- `cancel_account` — Destructive — https://policylayer.com/tools/takashito-linode-mcp-server/cancel-account.md
- `cancel_backups` — Destructive — https://policylayer.com/tools/takashito-linode-mcp-server/cancel-backups.md
- `cancel_object_storage` — Destructive — https://policylayer.com/tools/takashito-linode-mcp-server/cancel-object-storage.md
- `delete_alert_definition` — Destructive — https://policylayer.com/tools/takashito-linode-mcp-server/delete-alert-definition.md
- `delete_api_token` — Destructive — https://policylayer.com/tools/takashito-linode-mcp-server/delete-api-token.md
- `delete_config_interface` — Destructive — https://policylayer.com/tools/takashito-linode-mcp-server/delete-config-interface.md
- `delete_domain` — Destructive — https://policylayer.com/tools/takashito-linode-mcp-server/delete-domain.md
- `delete_domain_record` — Destructive — https://policylayer.com/tools/takashito-linode-mcp-server/delete-domain-record.md
- `delete_firewall` — Destructive — https://policylayer.com/tools/takashito-linode-mcp-server/delete-firewall.md
- `delete_firewall_device` — Destructive — https://policylayer.com/tools/takashito-linode-mcp-server/delete-firewall-device.md
- `delete_image` — Destructive — https://policylayer.com/tools/takashito-linode-mcp-server/delete-image.md
- `delete_image_sharegroup` — Destructive — https://policylayer.com/tools/takashito-linode-mcp-server/delete-image-sharegroup.md
- `delete_instance` — Destructive — https://policylayer.com/tools/takashito-linode-mcp-server/delete-instance.md
- `delete_instance_config` — Destructive — https://policylayer.com/tools/takashito-linode-mcp-server/delete-instance-config.md
- `delete_instance_disk` — Destructive — https://policylayer.com/tools/takashito-linode-mcp-server/delete-instance-disk.md
- `delete_ipv4_address` — Destructive — https://policylayer.com/tools/takashito-linode-mcp-server/delete-ipv4-address.md
- `delete_ipv6_range` — Destructive — https://policylayer.com/tools/takashito-linode-mcp-server/delete-ipv6-range.md
- `delete_kubernetes_cluster` — Destructive — https://policylayer.com/tools/takashito-linode-mcp-server/delete-kubernetes-cluster.md
- `delete_kubernetes_control_plane_acl` — Destructive — https://policylayer.com/tools/takashito-linode-mcp-server/delete-kubernetes-control-plane-acl.md
- `delete_kubernetes_kubeconfig` — Destructive — https://policylayer.com/tools/takashito-linode-mcp-server/delete-kubernetes-kubeconfig.md
- `delete_kubernetes_node` — Destructive — https://policylayer.com/tools/takashito-linode-mcp-server/delete-kubernetes-node.md
- `delete_kubernetes_node_pool` — Destructive — https://policylayer.com/tools/takashito-linode-mcp-server/delete-kubernetes-node-pool.md
- `delete_kubernetes_service_token` — Destructive — https://policylayer.com/tools/takashito-linode-mcp-server/delete-kubernetes-service-token.md
- `delete_linode_interface` — Destructive — https://policylayer.com/tools/takashito-linode-mcp-server/delete-linode-interface.md
- `delete_log_destination` — Destructive — https://policylayer.com/tools/takashito-linode-mcp-server/delete-log-destination.md
- `delete_log_stream` — Destructive — https://policylayer.com/tools/takashito-linode-mcp-server/delete-log-stream.md
- `delete_longview_client` — Destructive — https://policylayer.com/tools/takashito-linode-mcp-server/delete-longview-client.md
- `delete_mysql_instance` — Destructive — https://policylayer.com/tools/takashito-linode-mcp-server/delete-mysql-instance.md
- `delete_nodebalancer` — Destructive — https://policylayer.com/tools/takashito-linode-mcp-server/delete-nodebalancer.md
- `delete_notification_channel` — Destructive — https://policylayer.com/tools/takashito-linode-mcp-server/delete-notification-channel.md
- …and 385 more: https://policylayer.com/tools/takashito-linode-mcp-server.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=takashito-linode-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/takashito-linode-mcp-server