If you ever come across a situation where you need to get rid of a profile from RACF but for some odd reason it’s proving to be a difficult task, you may relax; RACKILL utility is here for the rescue. The RACKILL utility allows you to unconditionally delete profiles in […]


Protecting TSO resources using RACF

It is important to ensure that your TSO resources on the mainframe are secured. The following table contains the list of RACF classes and corresponding profiles available to protect TSO resources:   RACF class name Profile name Resource protected TSOPROC procedure name Logon procedure ACCTNUM account number Account number for […]


Protecting z/OS System Datasets

It’s important to keep your z/OS system datasets protected. The table below, sets the advised security UACC settings to many of the system datasets. For system data sets that are listed in with a UACC greater than NONE, you might prefer to specify UACC(NONE) and create an access control list […]

Tech - Mainframe

IBM z13 Mainframe – A $1 Billion Investment

Contrary to popular belief, the mainframe is not an old and obsolete technology. Big companies and government agencies keep using the mainframe because it’s a reliable and powerful platform that has been following the technological evolution. As the video below demonstrates, IBM keeps investing heavily on the development of new […]