It overwrote the whole drive with the word Hello. ----- stephan (Sent from a mobile device, possibly from bed. Please excuse brevity, typos, and top-posting.) On May 17, 2016 06:11, "Arnel" <r...@openmailbox.org> wrote:
> On Mon, 16 May 2016 14:39:11 -0400, Richard Hipp wrote: > > 1985. I was working at Bell Labs writing horizontal microcode for a > > signal processing chip. Development was hosted on a VAX. There were > > about a dozen developers all on the same machine. > > > > I noticed that the disk drive block devices (/dev/dsk0, /dev/dsk1, > > etc) all has global rwx permission. I went to the sysadmin and said > > "Hey, this a security problem - anybody can write anywhere on the > > disk!". "No, he said. Block devices don't work that way." I could > > not convince him otherwise. > > > > So I walked back to my VT100 and typed: echo Hello >/dev/dsk0 > > Would anyone mind explaining what this command did? > > > Neither the sysadmin, nor our manager, nor the other dozen developers > > using that machine were amused at being off-line for an hour while > > system was restored... > > ---- > Thank you, > Arnel > _______________________________________________ > fossil-users mailing list > fossil-users@lists.fossil-scm.org > http://lists.fossil-scm.org:8080/cgi-bin/mailman/listinfo/fossil-users >
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