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Tectia

Directories and Datasets

USS

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

/opt/tectia

Contains executable binaries, setup scripts, configuration files, server key files, manual pages, documentation, license agreement, example JCL scripts.

Space: 200 MB, 250 Cyls, read/write

After running the setup script, Tectia Server for IBM z/OS consists of a directory structure under /opt/tectia. You may create a symbolic 'tectia' link to the place where the directory structure resides under /opt or you may want to create a separate HFS or zFS file system for it.

$HOME/.ssh2

Each z/OS user account that is accessed via Tectia Server or that runs SSH client programs normally has a USS home directory ($HOME, for example, /u/home1/username) and under it a .ssh2 subdirectory. The .ssh2 directory contains the user's configuration files and keys. The home directory is required if public key user authentication is used and if user-specific configuration is needed.

Space: 128 kB, read/write

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

/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/sticky.

The /tmp directory must exist in advance and it must be user-writable and have the sticky bit on.

The sticky attribute for /tmp can be checked by observing the output of ls(1) and verifying that the letter t is present in the permissions field:

:> ls -ld /tmp/.
drwxrwxrwt  89 WEBSRV   SYS1       49152 Apr 11 14:43 /tmp/.

If the permissions differ from rwxrwxrwxt, they must be adjusted with chmod(1):

:> chmod 1777 /tmp/.
/tmp/ssh-username

Contains users' temporary files used in Secure Shell agent forwarding.

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

Space: 12 kB for each user, read/write

MVS

Although this version of 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.

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