plesk_fail2ban_whitelist_ip · Plesk MCP Server MCP

WHAT IT DOES

What plesk_fail2ban_whitelist_ip does on Plesk MCP Server

AI agents use plesk_fail2ban_whitelist_ip to create or update resources in Plesk MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Plesk MCP Server environment.

WHY IT NEEDS A POLICY

Why plesk_fail2ban_whitelist_ip needs a policy

This tool modifies Fail2Ban configuration by adding an IP to the whitelist, which is a reversible write operation. However, the severity is high because misconfiguration could disable critical security protections—whitelisting a malicious IP would bypass intrusion detection.

From the tool's definition Tool name 'plesk_fail2ban_whitelist_ip' and description 'Add an IP address to the Fail2Ban whitelist' indicate the tool creates or modifies security whitelist entries.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

plesk_fail2ban_whitelist_ip Rate-limited

plesk_fail2ban_whitelist_ip 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": {
    "plesk_fail2ban_whitelist_ip": {
      "limits": [
        {
          "counter": "plesk_fail2ban_whitelist_ip_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 Plesk MCP Server, so you can run agents against it safely.

FAQ

Questions about plesk_fail2ban_whitelist_ip

What does the plesk_fail2ban_whitelist_ip tool do? +

Add an IP address to the Fail2Ban whitelist. It is categorised as a Write tool in the Plesk 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 plesk_fail2ban_whitelist_ip? +

Register the Plesk MCP Server MCP server in PolicyLayer and add a rule for plesk_fail2ban_whitelist_ip: 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 Plesk MCP Server. Nothing to install.

What risk level is plesk_fail2ban_whitelist_ip? +

plesk_fail2ban_whitelist_ip is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit plesk_fail2ban_whitelist_ip? +

Yes. Add a rate_limit block to the plesk_fail2ban_whitelist_ip 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 plesk_fail2ban_whitelist_ip completely? +

Set action: deny in the PolicyLayer policy for plesk_fail2ban_whitelist_ip. 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 plesk_fail2ban_whitelist_ip? +

plesk_fail2ban_whitelist_ip is provided by the Plesk MCP Server MCP server (klan1/plesk-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.