.-SNAMGMT--=--NO------. >>-+---------------------+------------------------------------->< '-SNAMGMT--=--+-YES-+-' '-NO--'
Specifies whether the ISTMGCEH subtask, which is the socket server for the SNA network management interface, is to be attached and the socket opened for use. See z/OS Communications Server: IP Programmer's Guide and Reference for the programming specifications for the SNA network management interface.
You can change the value of SNAMGMT with the MODIFY VTAMOPTS command while VTAM® is running.
- SNAMGMT=YES
- Specifies that the ISTMGCEH subtask is to be attached and the
Network Management Interface socket opened for use. If you want to
support application programs that exploit the Network Management Interface,
specify SNAMGMT=YES for this start option.
If you specify SNAMGMT=YES, an AF_UNIX socket will be opened and will allow connections to be made by authorized client applications.
There is a security mechanism to restrict access to this function. To permit only particular users to use this function, define the RACF® (or equivalent external security manager product) resource IST.NETMGMT.sysname.SNAMGMT in the SERVAUTH class. For users permitted to use the function, the MVS™ user ID is permitted to the defined resource. If the resource is not defined, then only superusers (users permitted to BPX.SUPERUSER resource in the FACILITY class) are permitted to it.
The VTAM address space user ID must be defined with write access to the /var directory.
The administrator must define an OMVS segment for VTAM if one is not already defined.
The directory /var/sock will be created by VTAM when enabling this function with MLS seclabel SYSMULTI.
- SNAMGMT=NO
- Specifies that the ISTMGCEH subtask is not to be attached and the Network Management Interface socket is not to be opened for use. If you do not want to support application programs that exploit the Network Management Interface, specify SNAMGMT=NO for this start option.