[Contents] [Index]

About This Document >>     Installing SSH Tectia Server for IBM z/OS >>     Using SSH Tectia Server for IBM z/OS >>         Running the Server >>             Starting the Server Manually under USS             Running as a Started Task             Starting the Server in Debug Mode             Environment Variables for the Server             Running ssh-certd             Restarting the Server         Setting Up a Shell User>>         Running Client Programs>>         Handling MVS Datasets and HFS File System Access>>         Listing Datasets with SFTP Clients>>     Configuring the Server >>     Configuring the Client >>     Authentication >>     Troubleshooting SSH Tectia Server for IBM z/OS >>     Examples of Use >>     Man Pages >>     Log Messages >>

Starting the Server in Debug Mode

In order to start the server in debug mode, log on to USS as the SSHD2 user. Execute the command:

> /usr/lpp/ssh2/sbin/sshd2 -d 2

or

> /usr/lpp/ssh2/sbin/sshd2 -D 2

The debug level can be set with the -d or -D option. If -d is used, the server accepts only one connection. After that the connection to the server exits. With the -D option, the server keeps on listening the TCP port and spawns new task for each new connection. The server does not exit after the connections.

The debug level is either a number, or a comma-separated list of assignments of the format ModulePattern=debug_level, for example "*=10,sshd2=2".

If another server is already listening to the default port, use option -p to change the TCP port the server is listening to. For example:

> /usr/lpp/ssh2/sbin/sshd2 -D 2 -p 2222

This starts a server process that listens to port number 2222.

Debugging for the SFTP server subsystem can be controlled with the SSH_SFTP_DEBUG and SSH_SFTP_DEBUG_FILE environment variables. See Section File Transfer Environment Variables for more information.