[Contents] [Index]

About This Document >>     Installing SSH Tectia Server for IBM z/OS >>         Preparing for Installation >>             System Requirements             Permission Requirements             Directories and Datasets         Installing the SSH Tectia Server for IBM z/OS Software >>         Upgrading the SSH Tectia Server for IBM z/OS Software         Removing the SSH Tectia Server for IBM z/OS Software     Getting Started with SSH Tectia Server for IBM z/OS >>     Configuring the Server >>     Configuring the Client >>     Authentication >>     File Transfer Using SFTP >>     File Transfer Using Transparent FTP Tunneling >>     Tunneling on the Command Line >>     Troubleshooting SSH Tectia Server for IBM z/OS >>     Advanced Information >>     Man Pages >>     Log Messages >>

Directories and Datasets

USS

The directory structure under Unix System Services (USS) is shown below. The space requirements are approximate upper limits.

• /usr/lpp/ssh2

  Contains executable binaries, setup scripts, manual pages, documentation, license agreement, example JCL scripts.

  Space: 200 MB, 250 Cyls, read-only after installation

• /etc/ssh2

  Contains configuration files and keys for the server.

  Space: 1 MB, read/write

• $HOME/.ssh2

  Each z/OS user account that runs SSH client programs or accesses the server must have a USS home directory ($HOME, for example, /u/home1/username). The system will create the .ssh2 directory under the home directory. It contains the user's configuration files and keys.

  Space: 128 kB, read/write

• /tmp

  Contains server process ID files and the default STDOUT and STDERR. Used also temporarily during installation.

  Space: 256 kB (300 MB during installation), read/write

• /tmp/ssh-username

  Contains users' temporary files used in SSH agent forwarding.

  Space: 8 kB, read/write

SSH Tectia Server for IBM z/OS, when installed, mainly consists of a directory structure under /usr/lpp/ssh2. You may create a symbolic 'ssh2' link to the place where the directory structure resides under /usr/lpp or you may want to create a separate HFS or zFS file system for it.

The setup script and runtime programs of SSH Tectia Server for IBM z/OS create the /etc/ssh2 and $HOME/.ssh2 directories as needed. If you want any of these 'ssh2' directory levels to be a link to some other spot in your directory hierarchy, create the link before running the setup script or program.

The /tmp directory must exist in advance and it must be user-writable.

The SSH agent forwarding status files under /tmp are temporary and valid only while the actual user process is running.

MVS

Although this version of SSH Tectia Server for IBM z/OS must be installed in a USS file system and use the directory structure shown above, the server supports the transfer of MVS files and all the programs can be executed in JCL by BPXBATCH, BPXBATSL, and oshell.