Struct SshServiceChecker 

pub struct SshServiceChecker { /* private fields */ }

SSH Service Checker for testing service availability

This checker performs lightweight connectivity tests to determine if an SSH daemon is running and accepting connections on a given host and port. It does not attempt to authenticate or establish a working SSH session.

The checker uses minimal SSH commands with short timeouts and batch mode to quickly determine service availability without user interaction.

Implementations

impl SshServiceChecker

pub fn new() -> Self

Create a new SSH service checker with default settings

Default connection timeout is 5 seconds.

pub fn with_timeout(connect_timeout: u16) -> Self

Create a new SSH service checker with custom connection timeout

Arguments

• connect_timeout - Timeout in seconds for connection attempts

pub fn is_service_available(&self, socket_addr: SocketAddr) -> Result<bool>

Check if SSH service is available at the specified socket address

This method attempts a minimal SSH connection to test service availability. It distinguishes between:

• Service not available (connection refused, no route to host)
• Service available (authentication failures are considered as service available)

Arguments

• socket_addr - The socket address (IP and port) to test

Returns

• Ok(true) - SSH service is available and accepting connections
• Ok(false) - SSH service is not available or not reachable
• Err(SshServiceError) - Command execution error (e.g., ssh binary not found)

Errors

Returns an error if the SSH command cannot be executed (e.g., ssh binary not found or process was terminated by signal).

Trait Implementations

impl Debug for SshServiceChecker

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for SshServiceChecker

fn default() -> Self

Returns the “default value” for a type.