chip@tct.uucp (Chip Salzenberg) (07/04/90)
[ Question is also relevant to comp.unix.xenix; hence this crosspost. ] According to ians@saleven.saleven.oz.au (Ian Sergeant): >In SCO UNIX V tcp distributed with ODT the function of cpd isn't obvious, >and other daemons network daemons seem to register with it. The CoPyright Daemon is a grody hack that does periodic UDP broadcasts to an undocumented port (60000, I think) reporting its serial number, and which also listens for cpd broadcasts from other hosts. If any are received with the same serial number, cpd promptly shuts down the local host's TCP/IP system. Feh. I consider this method of copy protection to be impolite at best, since it (1) uses broadcasts and (2) causes an immediate shutdown, when the serial number conflict could possibly be an honest mistake. -- Chip Salzenberg at ComDev/TCT <chip@tct.uucp>, <uunet!ateng!tct!chip>
sl@van-bc.wimsey.bc.ca (Stuart Lynne) (07/05/90)
In article <2690F0F3.1352@tct.uucp> chip@tct.uucp (Chip Salzenberg) writes: >[ Question is also relevant to comp.unix.xenix; hence this crosspost. ] > >I consider this method of copy protection to be impolite at best, >since it (1) uses broadcasts and (2) causes an immediate shutdown, >when the serial number conflict could possibly be an honest mistake. I'll say it's a pain. We have several (legal) copies of TCP/IP for Xenix. If a machine has to have TCP reinstalled you had better remember which serial number you used. Get the wrong one and you get to try again until you do. -- Stuart.Lynne@wimsey.bc.ca ubc-cs!van-bc!sl 604-937-7532(voice)
peter@ficc.ferranti.com (Peter da Silva) (07/05/90)
In article <772@van-bc.wimsey.bc.ca> sl@van-bc.wimsey.bc.ca (Stuart Lynne) writes: > I'll say it's a pain. We have several (legal) copies of TCP/IP for Xenix. If > a machine has to have TCP reinstalled you had better remember which serial > number you used. Get the wrong one and you get to try again until you do. Thanks for the warning! We only have the one Lachman TCP running, but were planning on getting more System V.3.2 systems later on. What happens if you just take out /etc/rc2.d/S69cp? -- Peter da Silva. `-_-' +1 713 274 5180. <peter@ficc.ferranti.com>
bin@primate.wisc.edu (Brain in Neutral) (07/06/90)
From article <2690F0F3.1352@tct.uucp>, by chip@tct.uucp (Chip Salzenberg): > I consider this method of copy protection to be impolite at best, > since it (1) uses broadcasts and (2) causes an immediate shutdown, > when the serial number conflict could possibly be an honest mistake. and how about (3) broadcasts to a port number that is undocumented and could well be used by some other application. Paul DuBois Internet: dubois@primate.wisc.edu UUCP: rhesus!dubois CompuServe: >INTERNET:dubois@primate.wisc.edu FAX: 608/263-4031