FTPUSERS(5) NetBSD File Formats Manual FTPUSERS(5) NNAAMMEE ffttppuusseerrss, ffttppcchhrroooott - tnftpd(8) access control file DDEESSCCRRIIPPTTIIOONN 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 inet_net_pton(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 _/_e_t_c_/_f_t_p_c_h_r_o_o_t 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 _/_e_t_c_/_f_t_p_u_s_e_r_s in order to allow guest logins. //eettcc//ffttppcchhrroooott The file _/_e_t_c_/_f_t_p_c_h_r_o_o_t 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. FFIILLEESS /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/examples/ftpd/ftpusers A sample ffttppuusseerrss file. SSEEEE AALLSSOO fnmatch(3), inet_net_pton(3), ftpd.conf(5), tnftpd(8) NetBSD 1.6 February 28, 2003 NetBSD 1.6