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Re: lug-bg: chroot
- Subject: Re: lug-bg: chroot
- From: kolarov@xxxxxxxxxx (Yavor Kolarov)
- Date: Sun, 29 Apr 2001 19:30:16 +0000
Zdravei,
Standartnata funkcia chroot(), koiato pravi sistemno obrushtane (system call)
smenia root direktoriata na daden proces(i se unaslediava negovite child
procesi). Ako se smeni root na daden proces na "/safe" i tozi proces se opita
da otvori fail "/tmp/X", to shte se otvori "/safe/tmp/X". Procesat ima dostup
samo do filove po-nadolu v durvoto na failovata sistema ot svoiata root
direktoria. Tova se izpolzva chesto ot gledna tochka na sigurnostta. Ako si
izvikal chroot("/tmp"); uspeshno, to tvoia proces shte ima dostap samo do
/tmp i po-navurte v ierarhiata.
Komandata chroot vika chroot() i sled tova exec()'va nikakva programa.
Ponezhe root na procesa se unaslediava to programata ima root zadadena
direktoria.
Yavor
Saturday 28 April 2001 22:36, you wrote:
> Zdraweite.
> Nqkoi move li da kave kakyw e sintaksisa i kak se izpolzwa chroot zashtoto
> ot infoto nishto ne movah da razbera
> Blagodarq
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