[email protected] (Shmuel Metz , Seymour J.) writes: > Fishing with dynamite, are we? OS/360 had so many holes[1] that most > people lost count. Take ISAM - please. > > MVS may have holes, but it's harder to find them and IBM is willing to > fix them. It's my fault that the operator can no longer blow you away > with a simple START command.
for future system effort ... the corporation wanted to move to softcopy document ... avoid some of problems where hard copy FS specification might be copied and leaked outside the company (there was a situation involving unannounced 370 virtual memory features that had leaked out in this manner ... prompting a number of things, including retrofitting all corporation copies with unique "serial numbers" attached under the glass ... which would appear on all pages copied). there were some enhancements added to vm370/cms that was supposedly the base for FS softcopy documentation (like disabling lots of mechanisms for copying and/or printing what was being displayed on 3270 screen). they would needle me that the fixes were such that if I was left alone in the datacenter with the machine ... that even I couldn't access the FS documentation (part of this may have been in response to various unflattering comments that I had been making about the FS effort). one friday afternoon when I was visiting to setup for some offshift dedicated time ... they got somewhat irritating about the subject ... which prompted me to reply it would take less than five minutes and involve changing one byte. I first had to disable all access to the machine from other than the operators console. I then used the hardware console to patch a branch instruction in the kernel password checking routine ... so that everything entered was treated as valid password. I pointed out that countermeasure would require something like service console passwords for access to hardware functions (like display/alter storage). misc. past posts mentioning Future System effort http://www.garlic.com/~lynn/submain.html#futuresys -- 42yrs virtualization experience (since Jan68), online at home since Mar1970 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
