Днешната сесия за въпроси и отговори ни идва с любезното съдействие на SuperUser - подразделение на Stack Exchange - обединяване на уеб сайтове с въпроси и отговори.
Снимката е предоставена от Nathan Meijer (Flickr).
Въпроса
Reader на SuperUser Зейн Уудърд иска да знае как да защитава с парола папка в Linux / Unix без шифроване:
I have searched around quite a bit for either a built-in feature or program to do this, but had no luck. I want to password protect a folder, but do not want to encrypt it.
The security of the contents of the folder is not important, the password would just act as a deterrent to somebody attempting to access the contents of the folder from my computer. Think of it like a password lock on a computer, if you were to remove the hard-drive, you could easily take all the files the user had, but the password is still a deterrent to people accessing the contents of the drive.
Two main reasons for not using encryption here are:
- Decreased performance for opening files.
- Encryption prevents the contents from being indexed/searchable.
Is anybody aware of a solution?
Има ли лесно решение, което Зейн може да използва, за да пази папката си с парола?
Отговорът
Сътрудниците на SuperUser R Schultz и Bodo Thiesen имат отговор за нас. Първо, Р. Шулц:
The easiest way would be to change the permissions of the files so that they are not readable by anyone other than the owner. Once that is done, a user would have to either log in as you (which should require a password) or sudo as root (which should also require a password). To change the permissions, simply use the following command on any files you do not want others to have access to.
chmod og-rwx filename
This assumes that when you are not at your computer, your screen is locked and there is a password for your account as well as the root account.
Следва отговор от Bodo Thiesen:
Create a new user for these protected files and/or directories. Then replace $newuser with the new user account name:
- chown $newuser filename directoryname
- chmod og-rwx filename directoryname
This way, the files and directories are safe even if you do not log out and have your screen unlocked for some reason.
Имате ли нещо, което да добавите към обяснението? Звучи в коментарите. Искате ли да прочетете повече отговори от други потребители на Stack Exchange? Вижте цялата тема на дискусията тук.
