HP-UX Secure Shell Getting Started Guide

LocalForward localhost:5001 remotehost:23
LogLevel
Use this directive to specify the verbosity level used when logging messages from ssh.
Table A-3 lists the valid values for the LogLevel directive.
Table A-3 LogLevelFacility Values
DescriptionValue
Does not log messages. The messages are not displayed on the standard
output.
QUIET
Logs only fatal messages.
FATAL
Logs all error messages
ERROR
Specifies the information that must be logged
INFO
Logs detailed messages
VERBOSE
Specifies debugging messages that must not be logged during a normal
operation
DEBUG
Specifies a higher degree of debug level than DEBUG. Specifying debug1 is
similar to specifying d or v on the command line, while invoking sshd.
debug1
Specifies a higher degree of debug level than debug1. Specifying debug1
is similar to specifying a -dd or -vv on the command line, while invoking
sshd.
debug2
Specifies a higher degree of debug level than debug2. Specifying debug2
is similar to specifying a -ddd or -vvv on the command line, while invoking
sshd.
debug3
The DEBUG and debug1 arguments are equivalent. The debug2 and debug3 arguments specify
higher levels of verbose output.
The default setting is INFO.
For example:
LogLevel FATAL
MACs
Use this directive to specify the Message Authentication Code (MAC) algorithms in order of
preference. SSH-2 uses the MAC algorithm for data integrity protection. Multiple algorithms
must be comma-separated.
The default setting is hmac-md5, hmac-sha1, hmac-ripemd160, hmac-sha1-96,
hmac-md5-96.
For example:
MACs hmac-md5, hmac-md5-96
NoHostAuthenticationForLocalhost
Use this directive to specify whether the home directory is shared across hosts. In this case,
localhost refers to a different host on each of the hosts, and the user receives warnings about
changed host keys. However, this option disables host authentication for localhost.
The default setting is YES.
For example:
NoHostAuthenticationForLocalhost yes
90 Configuration Files and Directives