When debugging the server, a second server daemon can be started to a different TCP port or alternatively the existing server can be stopped and the same port can be used for debugging.
Debugging can be started with the following command (run as the
> /opt/tectia/etc/init.d/sshd2 start foreground -d 4 -p 1234
In the command,
-d defines the debug level and
TCP port. With this command the debug output is displayed to the screen.
Debug can also be forwarded to a file:
> /opt/tectia/etc/init.d/sshd2 start foreground -d 4 -p 1234 > /tmp/sshd2_debug.out 2>&1
Debugging for the SFTP server subsystem can be controlled with the
SSH_SFTP_DEBUG defines the debug
level for the file transfer server.
defines the output file for the debug messages. See
Debugging File Transfer below.