SSH, The Secure Shell: The Definitive Guide, 2nd Edition

sshd Keywords

OpenSSH	Tectia	Keyword	Value	Meaning
✓	✓	#	Any text	Comment line
✓		AcceptEnv	Variables	Copy client environment variables to server
	✓	AllowAgentForwarding	Yes/no	Same as ForwardAgent
	✓	AllowedAuthentications	Auth types	Permitted authentication techniques
✓	✓	AllowGroups	Group list	Access control by Unix group
	✓	AllowHosts	Host list	Access control by hostname
	✓	AllowSHosts	Host list	Access control via .shosts
✓	✓	AllowTcpForwarding	Yes/no	Enable TCP port forwarding
	✓	AllowTcpForwardingForUsers	User list	Per user forwarding
	✓	AllowTcpForwardingForGroups	Group list	Per group forwarding
✓	✓	AllowUsers	User list	Access control by username
	✓	AllowX11Forwarding	Yes/no	Same as ForwardX11
	✓	AuthInteractiveFailureTimeout	Seconds
	✓	AuthKbdInt.NumOptional	# submethods	Set number of optional submethods required for authentication
	✓	AuthKbdInt.Optional	Auth methods	Set optional authentication submethods for keyboard-interactive auth
	✓	AuthKbdInt.Plugin	Filename	Path to plugin for keyboard-interactive auth
	✓	AuthKbdInt.RADIUS.NASIdentifier		Client identifier for RADIUS keyboard-interactive authentication
	✓	AuthKbdInt.RADIUS.Server	Server spec	RADIUS server for keyboard-interactive auth
	✓	AuthKbdInt.Required	Auth methods	Set required authentication submethods for keyboard-interactive auth
	✓	AuthKbdInt.Retries	# retries	Permitted retries for keyboard-interactive auth
	✓	AuthorizationFile	Filename	Location of authorization file
✓		AuthorizedKeysFile	Filename	Location ...