Establishing a mail-only account?

[Ding Li]

What's difference between /bin/false and /sbin/nologin?

Thanks

Alexander Dalloz wrote:

>Am Di, den 27.07.2004 schrieb david um 19:38:
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>>Is there a way to define a user account for a remote user such that the 
>>user can ONLY retrieve his/her
>>mail via POP3 or IMAP, and cannot run any other functionality (such as 
>>shell, or ftp?)
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>>I am running FC2 server, command line only.
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>>David
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>Edit /etc/passwd and change the shell set for the existing user to
>/bin/false. For new user creation use "useradd -s /bin/false".
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>Alexander
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