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Back door - traducción al español
WIKIMEDIA DISAMBIGUATION PAGE
Back door (disambiguation); The Back Door; Backdoor (disambiguation); Back Door; Backdoor; Backdoors
Back door
Puerta trasera
back door
puerta trasera, de la puerta trasera
back door
(n.) = puerta trasera
Ex: You do not want to try and clear the building, thinking it is a fire when it is just somebody trying to deliver a parcel of books to the back door.
Ex: You do not want to try and clear the building, thinking it is a fire when it is just somebody trying to deliver a parcel of books to the back door.
Definición
back door
<security> (Or "trap door", "wormhole"). A hole in the
security of a system deliberately left in place by designers
or maintainers. The motivation for such holes is not always
sinister; some operating systems, for example, come out of
the box with privileged accounts intended for use by field
service technicians or the vendor's maintenance programmers.
See also iron box, cracker, worm, logic bomb.
Historically, back doors have often lurked in systems longer
than anyone expected or planned, and a few have become widely
known. The infamous RTM worm of late 1988, for example,
used a back door in the BSD Unix "sendmail(8)" utility.
Ken Thompson's 1983 Turing Award lecture to the ACM
revealed the existence of a back door in early Unix versions
that may have qualified as the most fiendishly clever security
hack of all time. The C compiler contained code that would
recognise when the "login" command was being recompiled and
insert some code recognizing a password chosen by Thompson,
giving him entry to the system whether or not an account had
been created for him.
Normally such a back door could be removed by removing it from
the source code for the compiler and recompiling the compiler.
But to recompile the compiler, you have to *use* the compiler
- so Thompson also arranged that the compiler would *recognise
when it was compiling a version of itself*, and insert into
the recompiled compiler the code to insert into the recompiled
"login" the code to allow Thompson entry - and, of course, the
code to recognise itself and do the whole thing again the next
time around! And having done this once, he was then able to
recompile the compiler from the original sources; the hack
perpetuated itself invisibly, leaving the back door in place
and active but with no trace in the sources.
The talk that revealed this truly moby hack was published as
["Reflections on Trusting Trust", "Communications of the ACM
27", 8 (August 1984), pp. 761--763 ].
[Jargon File ]
(1995-04-25)
Wikipedia
Back door
A back door is a door in the rear of a building. Back door may also refer to:
Ejemplos de uso de Back door
1. Another man immediately opened the back door and got in.
2. The back door was open with blankets spilling out.
3. Foley likely entered through an unlocked back door, authorities said.
4. She fled through the back door with three of her children and heard window glass breaking.
5. The Doblo is the only one of our foursome that offers a hatchback style back door.