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Frequently Asked Questions

• Multiple sessions

  Session objects are not reusable, so you can only have one command/shell/subsystem via exec(), startShell() or startSubsystem() respectively. But you can start multiple sessions over a single connection.

• Toning down the logging

  sshj uses slf4j, which is just a facade, so it depends on how the underlying logging implementation you are using is configured. For example, in case of log4j this is typically accomplished with a log4j.properties in the classpath. Filter out/down messages from the net.schmizz category.

• Android support

  sshj works on Android 2.3+, with a slightly different Config.

• I/O with Channels

	// on any Channel, including Session.Command, Session.Shell and Session.Subsystem
	getOutputStream() // -> java.io.OutputStream; corresponds to stdin
	getInputStream() // -> java.io.InputStream; corresponds to stdout

	// only on Session.Command and Session.Shell
	getErrorStream() // -> java.io.InputStream; corresponds to stderr

	// only on Session.Command
	getOutputAsString() // -> java.lang.String; blocks until it reads all data from stdout

• Concurrency

  Multiplexing channels over a single connection is supported.