HP-UX Reference (11i v2 07/12) - 1M System Administration Commands A-M (vol 3)

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ftpd(1M) ftpd(1M)
Anonymous FTP is inherently dangerous to system security.
DEPENDENCIES
Pluggable Authentication Modules (PAM)
PAM is an Open Group standard for user authentication, password modification, and validation of accounts.
In particular, pam_authenticate()
is invoked to perform all functions related to login. This includes
retrieving the password, validating the account, and displaying error messages.
AUTHOR
ftpd was developed by the University of California, Berkeley and the Washington University, St. Louis,
Missouri.
SEE ALSO
ftp(1), inetd(1M), chroot(2), send(2), sendfile(2), getusershell(3C), pam_authenticate(3), ftpaccess(4),
ftpusers(4), group(4), inetd.conf(4), passwd(4), sis(5), xferlog(5).
HP-UX 11i Version 2: December 2007 Update − 7 − Hewlett-Packard Company 315