pam_ftp(8)

1PAM_FTP(8)                     Linux-PAM Manual                     PAM_FTP(8)
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NAME

6       pam_ftp - PAM module for anonymous access module
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SYNOPSIS

9       pam_ftp.so [debug] [ignore] [users=XXX,YYY,...]
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DESCRIPTION

12       pam_ftp is a PAM module which provides a pluggable anonymous ftp mode
13       of access.
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15       This module intercepts the user's name and password. If the name is ftp
16       or anonymous, the user's password is broken up at the @ delimiter into
17       a PAM_RUSER and a PAM_RHOST part; these pam-items being set
18       accordingly. The username (PAM_USER) is set to ftp. In this case the
19       module succeeds. Alternatively, the module sets the PAM_AUTHTOK item
20       with the entered password and fails.
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22       This module is not safe and easily spoofable.
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OPTIONS

25       debug
26           Print debug information.
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28       ignore
29           Pay no attention to the email address of the user (if supplied).
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31       ftp=XXX,YYY,...
32           Instead of ftp or anonymous, provide anonymous login to the comma
33           separated list of users: XXX,YYY,.... Should the applicant enter
34           one of these usernames the returned username is set to the first in
35           the list: XXX.
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MODULE TYPES PROVIDED

38       Only the auth module type is provided.
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RETURN VALUES

41       PAM_SUCCESS
42           The authentication was successful.
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44       PAM_USER_UNKNOWN
45           User not known.
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EXAMPLES

48       Add the following line to /etc/pam.d/ftpd to handle ftp style anonymous
49       login:
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51           #
52           # ftpd; add ftp-specifics. These lines enable anonymous ftp over
53           #       standard UN*X access (the listfile entry blocks access to
54           #       users listed in /etc/ftpusers)
55           #
56           auth    sufficient  pam_ftp.so
57           auth    required    pam_unix.so use_first_pass
58           auth    required    pam_listfile.so \
59                      onerr=succeed item=user sense=deny file=/etc/ftpusers
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AUTHOR

67       pam_ftp was written by Andrew G. Morgan <morgan@kernel.org>.
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71Linux-PAM Manual                  09/19/2013                        PAM_FTP(8)