TCAM? z/OS 2.3 from 2019 page 21-22 in https://www-40.ibm.com/servers/resourcelink/svc00100.nsf/pages/zOSV2R3sa231379/$file/ieae100_v2r3.pdf
On Tue, Dec 19, 2023 at 2:32 PM Radoslaw Skorupka < 00000471ebeac275-dmarc-requ...@listserv.ua.edu> wrote: > Unusal commands? > Well, it is enough to open both MVS System Commands and JES2 Commands > manuals. > OBEY is not exactly the system command, however it is widely used. > > My favourite is QUIESCE. > There are also other commands which I (almost) never use, but I > understand their purpose. > JES2 world is more complex - there are many commands which I vaguely > understand the purpose. And many which I consider really obsolete. > > Fun fact: recently I've been cleaning some z/OS installation, RACF > definitions. I've found approx. 400 OPERCMDS profiles. Some of them were > really, really obsolete - like MSS related command, TCAM commands, etc. > What's funny, even not-so-current documentation does not mention such > commands or profiles, but at least few of them are still present in the > system code. > Explanation: MSS - Mass Storage Subsystem. Very interesting tape-disc > device, but withdrawn in early 80's. TCAM - VTAM predecessor. I have no > idea how old it is. I'm pretty sure the OPERCMDS profiles were created > for an installation with neither MSS nor TCAM. > > -- > Radoslaw Skorupka > Lodz, Poland > > > > W dniu 19.12.2023 o 09:12, ITschak Mugzach pisze: > > There are some MVS commands that are hard to understand how and why they > > were created. What bothers me is the fact that the input of the commands > > that modify MVS behavior allows input from private dataset. These are the > > first commands I am trying when I do a pentest... > > For example: > > *SETLOAD* allows on-the-fly change of parmlib concatenation using a > dataset > > that is not part of the parmlib concatenation itself. for example: > SETLOAD > > 03,PARMLIB,DSN=sys4.relson > > TCPCIP *OBEY* command allows specification of TCPIP configuration from a > > private library. > > > > How frequent do you use these commands (if ever) and how do you identify > > the use (assuming that the commands are protected by your ESM). I wonder > > why IBM allows such a scenario. > > > > ITschak > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > -- Mike A Schwab, Springfield IL USA Where do Forest Rangers go to get away from it all? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
