FTPUSERS(5) BSD File Formats Manual FTPUSERS(5)

NAME
     ffttppuusseerrss, ffttppcchhrroooott - tnftpd(8) access control file

DESCRIPTION
     The ffttppuusseerrss file provides user access control for tnftpd(8) by defining
     which users may login.

     If the ffttppuusseerrss file does not exist, all users are denied access.

     A ``\'' is the escape character; it can be used to escape the meaning of
     the comment character, or if it is the last character on a line, extends
     a configuration directive across multiple lines.  A ``#'' is the comment
     character, and all characters from it to the end of line are ignored
     (unless it is escaped with the escape character).

     The syntax of each line is:
           userglob[:groupglob][@host] [directive [class]]

     These elements are:

           uusseerrgglloobb   matched against the user name, using fnmatch(3) glob
                      matching (e.g, `f*').

           ggrroouuppgglloobb  matched against all the groups that the user is a member
                      of, using fnmatch(3) glob matching (e.g, `*src').

           hhoosstt       either a CIDR address (refer to inetnetpton(3)) to
                      match against the remote address (e.g, `1.2.3.4/24'), or
                      an fnmatch(3) glob to match against the remote hostname
                      (e.g, `*.NetBSD.org').

           ddiirreeccttiivvee  If ``allow'' or ``yes'' the user is allowed access.  If
                      ``deny'' or ``no'', or ddiirreeccttiivvee is not given, the user
                      is denied access.

           ccllaassss      defines the class to use in ftpd.conf(5).

     If ccllaassss is not given, it defaults to one of the following:

           cchhrroooott  If there is a match in /etc/ftpchroot for the user.

           gguueesstt   If the user name is ``anonymous'' or `ftp'.

           rreeaall    If neither of the above is true.

     No further comparisons are attempted after the first successful match.
     If no match is found, the user is granted access.  This syntax is back-
     ward-compatible with the old syntax.

     If a user requests a guest login, the tnftpd(8) server checks to see that
     both ``anonymous'' and ``ftp'' have access, so if you deny all users by
     default, you will need to add both ``anonymous allow'' and ``ftp allow''
     to /etc/ftpusers in order to allow guest logins.

   //eettcc//ffttppcchhrroooott
     The file /etc/ftpchroot is used to determine which users will have their
     session's root directory changed (using chroot(2)), either to the direc-
     tory specified in the ftpd.conf(5) cchhrroooott directive (if set), or to the
     home directory of the user.  If the file does not exist, the root direc-
     tory change is not performed.

     The syntax is similar to ffttppuusseerrss, except that the ccllaassss argument is
     ignored.  If there's a positive match, the session's root directory is
     changed.  No further comparisons are attempted after the first successful
     match.  This syntax is backward-compatible with the old syntax.

FILES
     /etc/ftpchroot                     List of normal users who should have
                                        their ftp session's root directory
                                        changed by using chroot(2).
     /etc/ftpusers                      This file.
     /usr/share/ftpd/examples/ftpusers  A sample ffttppuusseerrss file.

SEE ALSO
     fnmatch(3), inetnetpton(3), ftpd.conf(5), tnftpd(8)

BSD                            February 28, 2003                           BSD