TCP/IP connections to CICS servers can be secured with
bind security to prevent an unauthorized client system from connecting
to CICS and user security to restrict the CICS resources that can
be accessed by a user.
Link security
Link security is not supported
for TCP/IP CICS server connections.
Bind security
Bind security prevents unauthorized
remote systems from connecting to CICS. For TCP/IP CICS server connections,
bind security is controlled using firewall rules.
User security
User security ensures that user
IDs and passwords are supplied for all incoming transaction attach
requests to CICS. To specify user security, set ATTACHSEC=VERIFY on
the TCPIPSERVICE definition on the CICS server. If user security is
not required set ATTACHSEC=LOCAL. TCP/IP connections
do not support the use of ATTACHSEC=IDENTIFY.