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SSH Tectia 
PreviousNextUp[Contents] [Index]

    About This Document >>
    Installing SSH Tectia Server for IBM z/OS >>
    Getting Started with SSH Tectia Server for IBM z/OS >>
        Running the Server >>
        Environment Variables for Server and Client Applications
        Setting Up a Shell User
            Authenticating Remote Server Hosts
            Using Password Authentication
            Using Public-Key Authentication
    Configuring the Server >>
    Authentication >>
    System Administration >>
    File Transfer Using SFTP >>
    Secure File Transfer Using Transparent FTP Security >>
    Tunneling >>
    Troubleshooting SSH Tectia Server for IBM z/OS >>
    Man Pages and Default Configuration Files >>
    Log Messages >>

Setting Up a Shell User

Users that are going to use SSH Tectia Server for IBM z/OS from a remote host must have an OMVS segment in their RACF profile. In addition, if a user is going to access the USS shell or execute USS shell commands or run SSH Tectia Server for IBM z/OS client programs on the mainframe, the user must have a home directory in the USS file hierarchy. The requirements are the same as for accessing USS with Telnet on port 1023.

z/OS users that are going to use the SSH Tectia Server for IBM z/OS client programs to access remote hosts need the same OMVS environment. For an example of creating a z/OS user for batch file transfers, see Creating a User for Batch File Transfers.

To enable the user to open the shell or other daemon, you need to increase the maximum region size (in bytes) for address space of the WSA process. You can set a system-wide limit in BPXPRMxx and then set higher limits for individual processes.

For OMVS, increase the size of the address space to 75MB in the RACF user profile. Use the RACF ADDUSER or ALTUSER command to specify the ASSIZEMAX limit on a per-process basis as follows:

ALTUSER userid OMVS(ASSIZEMAX(75000000)

In batch jobs,

REGION=
sets the address space size. It can be used on the JOB statement or on the EXEC statement.

If you want to customize the environment per user for file transfer use, see SSH Tectia Server for IBM z/OS User Manual.

Authenticating Remote Server Hosts

Using Password Authentication

Using Public-Key Authentication

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