SSH Server MCP

A Model Context Protocol (MCP) server for managing Linux servers via SSH. This server provides tools for executing commands, managing files, monitoring services, and analyzing logs on remote Linux systems.
- Copy the environment file and configure your SSH credentials:

cp env.example .env # Edit .env with your SSH server details

export SSH_HOST=your-server.example.com export SSH_USER=root export SSH_PASSWORD=your_password # OR export SSH_KEY_FILE=/path/to/private/key

Add the following configuration to youranythingllm_mcp_servers.json:

{ "mcpServers": { "ssh-mcp-server": { "name": "SSH MCP Server", "type": "streamable", "url": "http://ssh-mcp-server:8000/mcp", "auth_token": null, "enabled": true } } }

The server supports two authentication methods:
- Password Authentication: SetSSH_PASSWORDin your environment
- Key-based Authentication: SetSSH_KEY_FILEto the path of your private key

# Test SSH connection test_ssh_connection( hostname="server.example.com", username="root", password="your_password" )

# Execute a simple command execute_command("ls -la /var/log") # Execute with sudo execute_command("systemctl status nginx", use_sudo=True)

# Read a file read_file("/etc/nginx/nginx.conf") # Write to a file write_file("/tmp/test.txt", "Hello World!") # List directory contents list_directory("/var/log")

# Check service status get_service_status("nginx") # Start a service start_service("nginx") # Stop a service stop_service("nginx") # Restart a service restart_service("nginx")

# List all processes list_processes() # List specific processes list_processes(filter_by="nginx") # Kill a process kill_process("12345", signal="TERM")

# Check if port is open check_port(80) # Get network connections get_network_connections()

# Tail a log file tail_log("/var/log/nginx/access.log", lines=100) # Search in logs search_log("/var/log/nginx/error.log", "error")

- Use SSH key-based authentication when possible
- Limit SSH access to specific users and IPs
- Regularly rotate SSH keys and passwords
- Monitor SSH access logs
- Use sudo judiciously and limit sudo privileges
- Authentication Failed: Check username, password, or key file
- Connection Refused: Verify SSH service is running and port is correct
- Host Key Verification: Ensure the server's host key is trusted
- File Access Denied: Check file permissions and ownership
- Sudo Required: Useuse_sudo=Truefor privileged operations
- Service Management: Ensure user has appropriate systemd permissions
- Slow Commands: Increase timeout values for long-running commands
- Connection Timeouts: Check network connectivity and server load
- Resource Usage: Monitor server resources during operations

The server exposes the following MCP tools:

- test_ssh_connection: Test SSH connectivity
- get_server_info: Get system information
- execute_command: Execute commands
- read_file: Read file contents
- write_file: Write file contents
- list_directory: List directory contents
- get_service_status: Check service status
- start_service: Start a service
- stop_service: Stop a service
- restart_service: Restart a service
- list_processes: List running processes
- kill_process: Kill a process
- check_port: Check port status
- get_network_connections: Get network connections
- tail_log: Tail log files
- search_log: Search log files

This project is licensed under the MIT License.

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