System Diagnostics

An MCP server for system diagnostics and monitoring on Ubuntu using common command-line tools.

A Model Context Protocol (MCP) server that provides comprehensive system diagnostics and monitoring capabilities for Ubuntu systems.

- check_port– Test if a TCP port is open
- ping_host– ICMP ping to a remote host
- dns_lookup– Resolve DNS records for a domain
- http_check– HTTP status check for a URL
- traceroute_host– Trace network path to host
- get_uptime– Return system uptime
- get_sys_info– Basic system info (CPU, memory, disk)
- get_hostname– Retrieve machine hostname

- list_processes– List running processes (like ps)
- list_services– List systemd or init services
- service_status– Status of a specific service
- read_journal– Fetch latest logs for a unit or tag
- cron_list– Show cron jobs for current user

- check_disk_usage– Disk usage summary (like df)
- check_memory– RAM/Swap usage (like free)
- check_inode_usage– Filesystem inode stats
- list_mounts– Mounted volumes

- list_open_ports– Show open TCP/UDP ports
- check_firewall_status– UFW/iptables summary
- list_network_interfaces– IP, MAC, link state
- check_bandwidth_usage– Network traffic stats
- resolve_host– Reverse DNS for IP address
- curl_url– GET request with curl, full headers

- list_users– Local users
- last_logins– Last login attempts
- check_sudoers– Who can sudo
- who_is_logged_in– Current sessions

# Install uv if you haven't already curl -LsSf https://astral.sh/uv/install.sh | sh # Install the package uv pip install system-diag-mcp

Add this to your Claude Desktop configuration:

{ "mcpServers": { "system-diag": { "command": "system-diag-mcp" } } }

The server runs on stdio and implements the full MCP protocol.

# Clone the repository git clone <repository-url> cd system-diag-mcp # Install development dependencies uv pip install -e ".[dev]" # Run tests pytest # Format code black . ruff check .

- Python 3.8+
- Ubuntu/Debian-based system
- Required system tools:ping,dig,traceroute,systemctl,ps,df,free,curl

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