SSH Reference Manual

correctly configured and the define =TCPIP^HOST^FILE is set to the default value. A warning is logged in this case

("Disabling incorrectly configured DNS resolving").

A new define =SSH2^PROCESS^NAME will be created and propagated. It contains the name of the SSH2 process,

which started the TACL or shell process. The SSH clients (objects SSH, SSHOSS, SFTP and SFTPOSS) make use of

this define to look up the SSH2 server process before the CPU dependent lookup using SSH2PREFIX is tried. Those

SSH clients running within a shell started by an SSH2 server process no longer require specifying the SSH2 server

process via the -S flag.

Defines may have unwanted influence on the processing of started processes, e.g. if a TCP/IP application is started that

needs to use different DEFINE settings.

If defines should not be forwarded to processes started by the SSH2 process, then parameter PROPAGATEDEFINES

can be set to FALSE and the forwarding of defines will be suppressed (default is TRUE). The define =_DEFAULTS is

always propagated to new processes, independent of the setting for SSH2 parameter

PROPAGATEDEFINES.

Setting of PARAMs

SSH2 may create the following PARAMs when starting a TACL:

SSH-ORIGINAL-COMMAND

The command that was specified in an exec request. This can be different to the actually executed command, in case a

“forced command” is defined (USER attribute CI-COMMAND).

Setting of Environment Variables

SSH2 creates the following environment variables when starting a shell:

SSH_CONNECTION

This environment variable contains host and port information, each separated by a space character:

Example:

SSH_CONNECTION=10.0.0.12 40719 10.0.0.196 22

SSH_CLIENT

This environment variable contains remote host/port and local port information, each separated by a space character:

Example:

SSH_CLIENT=10.0.0.12 40719 22

TERM

This environment variable holds the terminal type.

Example:

TERM=xterm

LOGNAME

The user name as received from a remote client (the name of a user defined in SSHCTL).

Example:

HP NonStop SSH Reference Manual Configuring and Running SSH2 • 137