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6 .TH FTPUSERS 4 "May 1, 2003"
8 ftpusers \- file listing users to be disallowed ftp login privileges
12 \fB/etc/ftpd/ftpusers\fR
17 The \fBftpusers\fR file lists users for whom \fBftp\fR login privileges are
18 disallowed. Each \fBftpuser\fR entry is a single line of the form:
28 where \fBname\fR is the user's login name.
31 The FTP Server, \fBin.ftpd\fR(8), reads the \fBftpusers\fR file. If the login
32 name of the user matches one of the entries listed, it rejects the login
36 The \fBftpusers\fR file has the following default configuration entries:
58 These entries match the default instantiated entries from \fBpasswd\fR(4). The
59 list of default entries typically contains the superuser \fBroot\fR and other
60 administrative and system application identities.
63 The root entry is included in the \fBftpusers\fR file as a security measure
64 since the default policy is to disallow remote logins for this identity. This
65 policy is also set in the default value of the \fBCONSOLE\fR entry in the
66 \fB/etc/default/login\fR file. See \fBlogin\fR(1). If you allow \fBroot\fR
67 login privileges by deleting the root entry in \fBftpusers\fR, you should also
68 modify the security policy in \fB/etc/default/login\fR to reflect the site
69 security policy for remote login access by \fBroot\fR.
72 Other default entries are administrative identities that are typically assumed
73 by system applications but never used for local or remote login, for example
74 \fBsys\fR and \fBnobody\fR. Since these entries do not have a valid password
75 field instantiated in \fBshadow\fR(4), no login can be performed.
78 If a site adds similar administrative or system application identities in
79 \fBpasswd\fR(4) and \fBshadow\fR(4), for example, \fBmajordomo\fR, the site
80 should consider including them in the \fBftpusers\fR file for a consistent
84 Lines that begin with \fB#\fR are treated as comment lines and are ignored.
88 \fB\fB/etc/ftpd/ftpusers\fR\fR
91 A file that lists users for whom \fBftp\fR login privileges are disallowed.
97 \fB\fB/etc/ftpusers\fR\fR
100 See \fB/etc/ftpd/ftpusers\fR. This file is deprecated, although its use is
107 \fB\fB/etc/default/login\fR\fR
116 \fB\fB/etc/passwd\fR\fR
125 \fB\fB/etc/shadow\fR\fR
133 See \fBattributes\fR(5) for descriptions of the following attributes:
141 ATTRIBUTE TYPE ATTRIBUTE VALUE
143 Interface Stability See below.
148 The interface stability for \fB/etc/ftpd/ftpusers\fR is Volatile. The interface
149 stability for \fB/etc/ftpusers\fR is (Obsolete).
152 \fBlogin\fR(1), \fBftphosts\fR(4),
153 \fBpasswd\fR(4), \fBshadow\fR(4), \fBattributes\fR(5), \fBenviron\fR(5)