Communications Server for z/OS V1R7 TCP/IP Implementation, Volume 1: Base Functions, Connectivity, and Routing

Chapter 3. Base functions 63

12.IFAPRDxx or PROGxx

To add product and feature information in a z/OS environment.

SYS1.PROCLIB or the PROCLIB you use for your TCP/IP JCL procedures

These are:

1. If you choose to use restartable VMCF and TNF, add procedure EZAZSSI:

//EZAZSSI PROC P=''

//STARTVT EXEC PGM=EZAZSSI,PARM=&P

//STEPLIB DD DSN=hlq.SEZATCP,DISP=SHR

2. Update your TCP/IP startup JCL procedure. The sample for the CS for z/OS IP procedure

is in hlq.SEZAINST(TCPIPROC).

The PROCLIB you use for your TSO logon procedures

Update your TSO logon procedures by adding the TCP/IP help data set SYS1.HELP to the

//SYSHELP DD concatenation. Optionally, add the //SYSTCPD DD statement to your logon

procedures.

Add hlq.SEZAMENU to the //ISPMLIB DD concatenation and hlq.SEZAPENU to the

//ISPPLIB DD and the //ISPTLIB DD concatenations.

3.4.2 TCP/IP server functions

Each CS for z/OS IP server relies on the use of a security manager such as RACF. Several

servers provide some built-in security functions for additional security. These servers are

described in Communications Server for z/OS V1R7 TCP/IP Implementation, Volume 2 -

Standard Applications, SG24-7170.

3.4.3 TCP/IP client functions

The client functions of z/OS Communications Server IP are executed in a TSO environment

or a UNIX shell environment. Some functions are also available in other environments, such

as batch or started task address spaces.

Any TSO user may execute any TCP/IP command and use a TCP/IP client function to access

any other TCP/IP server host via the attached TCP/IP network. If these TCP/IP servers have

not implemented adequate password protection, then any TSO client user may log on to

these servers and access all data.

3.4.4 UNIX client functions

Certain client functions executed from the UNIX shell environment require superuser

authority. The user ID accessing the shell must have an OMVS segment associated with it.

RACF considerations for UNIX Client functions in CS for z/OS IP are covered in detail in

Communications Server for z/OS V1R7 TCP/IP Implementation, Volume 2 - Standard

Applications, SG24-7170, and Communications Server for z/OS V1R7 TCP/IP

Implementation, Volume 4 - Security, SG24-7172.

Common errors implementing UNIX System Services

In this section, we discuss some implementation problems frequently encountered.