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Operating Systems Linux Red Hat Does vsftpd support user subcommand? Post 303002788 by Corona688 on Friday 1st of September 2017 11:18:13 AM
Old 09-01-2017
Do not mess with PAM unless you are in easy driving distance of the system, have a rescue CD and the technical know-how to fix it by hand. Even then, give it a couple of second thoughts. The risks of altering PAM are very high. You can easily render your system unbootable, un-login-able, or open security holes you could only discover by accident (or intentional intrusion).

Why do you need to change users after an FTP login? Why not login as the user you wanted to login as in the first place?

Why do you need to use FTP at all?

Explain your problem in more detail and we can probably find better solutions.
 

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PAM_LOGIN_ACCESS(8)					    BSD System Manager's Manual 				       PAM_LOGIN_ACCESS(8)

NAME
pam_login_access -- login.access PAM module SYNOPSIS
[service-name] module-type control-flag pam_login_access [options] DESCRIPTION
The login.access service module for PAM, pam_login_access provides functionality for only one PAM category: account management. In terms of the module-type parameter, this is the ``account'' feature. Login.access Account Management Module The login.access account management component (pam_sm_acct_mgmt()), returns success if and only the user is allowed to log in on the speci- fied tty (in the case of a local login) or from the specified remote host (in the case of a remote login), according to the restrictions listed in login.access(5). SEE ALSO
login.access(5), pam.conf(5), pam(8) AUTHORS
The login.access(5) access control scheme was designed and implemented by Wietse Venema. The pam_login_access module and this manual page were developed for the FreeBSD Project by ThinkSec AS and NAI Labs, the Security Research Division of Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 (``CBOSS''), as part of the DARPA CHATS research program. BSD
January 24, 2002 BSD
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