Port Of Entry checking
z/OS® Explorer supports
Port Of Entry (POE) checking, which allows host access only to trusted
TCP/IP addresses. The usage of POE is controlled by the definition
of specific profiles in your security software and the
rse.env, as described in Port Of Entry (POE) checking.
Note that activating POE will impact other TCPIP applications that support POE checking, such as INETD.