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25 .\" $FreeBSD: src/libexec/ftpd/ftpchroot.5,v 1.2.2.1 2003/02/11 14:28:28 yar Exp $
32 .Nd list users and groups subject to FTP access restrictions
38 at the beginning of an FTP session, after having authenticated the user.
41 corresponds to a user or group. If a line in
43 matches the current user or a group he is a member of,
44 access restrictions will be applied to this
45 session by changing its root directory with
47 to that specified on the line or to the user's login directory.
49 The order of records in
51 is important because the first match will be used.
52 Fields on each line are separated by tabs or spaces.
54 The first field specifies a user or group name.
55 If it is prefixed by an
59 it specifies a group name;
60 the line will match each user who is a member of this group.
61 As a special case, a single
63 in this field will match any user.
64 A username is specified otherwise.
66 The optional second field describes the directory for the user
67 or each member of the group to be locked up in using
69 Be it omitted, the user's login directory will be used.
70 If it is not an absolute pathname, then it will be relative
71 to the user's login directory.
76 will treat its left-hand side as the name of the directory to do
78 to, and its right-hand side to change the current directory to afterwards.
80 .Bl -tag -width /etc/ftpchroot -compact
88 and each member of the group
90 in their respective login directories:
91 .Bd -literal -offset indent
96 And this line will tell
102 and then to change the current directory to
104 which is relative to the session's new root:
105 .Bd -literal -offset indent
106 joe /var/spool/ftp/./joe
109 And finally the following line will lock up every user connecting
110 through FTP in his respective
111 .Pa \&~/public_html ,
112 thus lowering possible impact on the system
113 from intrinsic insecurity of FTP:
114 .Bd -literal -offset indent