Perle Systems STS, SCS manual Break String, Enable Verbose, Output Default Disabled

SSL/TLS

Break String	The break string used for inband SSH break signal processing. A break signal
	is generated on a specific serial port only when the server's break option is
	enabled and the user currently connected using reverse SSH has typed the
	break string exactly.
	Field Format: maximum 8 characters
	Default: ~break, where ~ is tilde
Enable Verbose	Displays debug messages on the terminal.
Output	Default: Disabled

Allow Compression Requests compression of all data. Compression is desirable on modem lines and other slow connections, but will only slow down things on fast networks.

Default: Disabled

SSL/TLS

Overview

When SSL/TLS is configured, data is encrypted between the IOLAN and the host/device (which must also support SSL/TLS). When you configure the SSL/TLS settings in the System section, you are configuring the default global SSL/TLS settings; you are not configuring an SSL/TLS server.

Functionality

You can create an encrypted connection using SSL/TLS for the following profiles: TruePort, TCP

Sockets, Terminal (the user’s Service must be set to SSL_Raw), Serial Tunneling, Virtual Modem, and Modbus.

When configuring SSL/TLS, the following configuration options are available:

zYou can set up the IOLAN to act as an SSL/TLS client or server.

zThere is an extensive selection of SSL/TLS ciphers that you can configure for your SSL/TLS connection; Appendix B, SSL/TLS Ciphers on page 347 for a list of SSL/TLS ciphers.

zYou can enable peer certificate validation, for which you must supply the validation criteria that was used when creating the peer certificate (this is case sensitive).

Note: See Keys and Certificates on page 232 for information about SSL/TLS support documents.

216 IOLAN SDS/SCS/STS User’s Guide, Version 3.6