Re: [Linux-users] Data security and privacy (Re: PATA drives - 80/40G)

2015-08-18 Thread Volker Kuhlmann
On Tue 18 Aug 2015 14:21:04 NZST +1200, Adrian Mageanu wrote: I can't remember where I read but there are ways to retrieve data after a dd fill with zeroes or something else by using photorec and some hardware forensic techniques. Really? I doubt that. What kind of hardware forensic

Re: [Linux-users] PATA drives - 80/40G

2015-08-18 Thread Peter Glassenbury
What DEC hardware was it ? We used to have a Vax 11/750 running Ultrix and then 4.3 BSD in the department Of interest to see one saved if I can find one. Still have the source code and maybe the tapes. Ferrymead doesn't save computers -- not old enough. The old computer group out there is

Re: [Linux-users] PATA drives - 80/40G

2015-08-18 Thread Chris Hellyar
Hi-ho, I'm not sure of the model yet, at this stage all I know is that it's 6 cabinets with digital on some of them. That means it's not a minivax but other than that I'm in a hold loop waiting for a date next month to go and take a look. :-) I worked on a PDP11 micro that was failing with

Re: [Linux-users] PATA drives - 80/40G

2015-08-18 Thread Kent Fredric
On 18 August 2015 at 22:20, Chris Hellyar ch...@trash.co.nz wrote: Xenix https://en.wikipedia.org/wiki/Xenix Really? Or same name different thing? -- Kent KENTNL - https://metacpan.org/author/KENTNL ___ Linux-users mailing list

Re: [Linux-users] PATA drives - 80/40G

2015-08-18 Thread Chris Hellyar
That's the one... Microsoft's long forgotten Unix. :-) We had quite a few customers using it on Altos 386 and IBM PS2/80 hardware back in the day, and the customer with the VAX was in our system as having a model 80.. So off I went with my 3.5 set of Xenix disks and a smile.. Turned out to

Re: [Linux-users] Data security and privacy (Re: PATA drives - 80/40G)

2015-08-18 Thread Adrian Mageanu
On Tue, 2015-08-18 at 21:10 +1200, Volker Kuhlmann wrote: On Tue 18 Aug 2015 14:21:04 NZST +1200, Adrian Mageanu wrote: I can't remember where I read but there are ways to retrieve data after a dd fill with zeroes or something else by using photorec and some hardware forensic techniques.

Re: [Linux-users] Data security and privacy (Re: PATA drives - 80/40G)

2015-08-18 Thread Derek Smithies
Hmm. one could debate the safest approach - what does OSH suggest? I think 35 passes with a custom tool is seriously painful. The sledgehammer is pretty fast - don't think there are any (reasonable) faster options. Blowtorch costs money and time.. You can power the drive up, remove the

Re: [Linux-users] Data security and privacy (Re: PATA drives - 80/40G)

2015-08-18 Thread Volker Kuhlmann
On Wed 19 Aug 2015 00:00:39 NZST +1200, Adrian Mageanu wrote: From memory, the method described was a combination of utilities of which I can only remember photorec, and one of the forensic techniques described (among others) was a way to read the disk by offsetting the head left and right

Re: [Linux-users] Data security and privacy (Re: PATA drives - 80/40G)

2015-08-18 Thread Helmut Walle
On 18/08/15 14:21, Adrian Mageanu wrote: [...] I can't remember where I read but there are ways to retrieve data after a dd fill with zeroes or something else by using photorec and some hardware forensic techniques. [...] photorec is only for recovering deleted (as opposed to wiped) files, or

Re: [Linux-users] Data security and privacy (Re: PATA drives - 80/40G)

2015-08-18 Thread Derek Smithies
Hi, we are talking about a sub hundred dollar device. If you want to destroy the data for sure, a sledgehammer is hard to beat. Or a hammer. Yes, some will have urban myths about recovery of data from the above actions. There are others who say man did not land on the moon. equally bogus.

Re: [Linux-users] Data security and privacy (Re: PATA drives - 80/40G)

2015-08-18 Thread Kent Fredric
On 19 August 2015 at 09:58, Volker Kuhlmann list0...@paradise.net.nz wrote: . Heaps of reference has been made to Gutmann's paper and people wrote heaps of software, while forgetting that it all no longer applies to their drives.. I should expand that the oft cited gutmann paper is now

Re: [Linux-users] Data security and privacy (Re: PATA drives - 80/40G)

2015-08-18 Thread Chris Hellyar
In the past I’ve found the .22 off-hand at about 50m to be both challenging and fun. ( But possibly not practical, or legal in an urban environment!. YMMV! ) :-) On 19/08/2015, at 13:48, steve st...@greengecko.co.nz wrote: Blowtorch is better... and more fun. On 19/08/15 11:16, Derek