MCP server for network diagnostics. Exposes 8 tools for use with Claude Code, Claude Desktop, or any MCP client. | Tool | Description | |------|-------------| | `ping` | ICMP ping — reachability and round-trip times | | `dns_lookup` | DNS record lookup (A, AAAA, MX, TXT, NS, CNAME) | | `port_check` | TCP port open/closed check |