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01-04-2008, 07:14 AM
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#1
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LQ Newbie
Registered: Jan 2006
Location: Islamabad,Pakistan
Posts: 29
Rep:
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Shadow file
Hello,
Why we have reserved field in shadow file, for what purpose it is used?.Its description says that it is for future use, can anyone give any example for what type of work it is used?
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01-04-2008, 07:26 AM
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#2
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LQ Guru
Registered: Sep 2003
Location: Bologna
Distribution: CentOS 6.5 OpenSuSE 12.3
Posts: 10,509
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Well... in modern linux distros the shadow file stores the encrypted passwords and is readable by root only. This should prevent normal users from attempting a malicious decryption of the stored passwords.
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01-04-2008, 07:45 AM
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#3
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Senior Member
Registered: Aug 2003
Location: Glasgow
Distribution: Fedora / Solaris
Posts: 3,109
Rep:
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Hi.
The reserved field is just that - reserved. At the moment, it doesn't do anything, it's just defined in case someone comes up with a good idea for what to put there. It's possible it does something in other Unix types, though.
Dave
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01-04-2008, 08:30 AM
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#4
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LQ Guru
Registered: Sep 2003
Location: Bologna
Distribution: CentOS 6.5 OpenSuSE 12.3
Posts: 10,509
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Uh... sorry... I missed the focus of the question. Thanks ilikejam for posting the correct answer.
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01-05-2008, 04:14 AM
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#5
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LQ Newbie
Registered: Jan 2006
Location: Islamabad,Pakistan
Posts: 29
Original Poster
Rep:
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Thank you for explaining
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