1 '\" te
   2 .\" Copyright (C) 2003, Sun Microsystems, Inc. All Rights Reserved
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   4 .\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing.  See the License for the specific language governing permissions and limitations under the License.
   5 .\" When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE.  If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
   6 .TH FTPUSERS 4 "May 1, 2003"
   7 .SH NAME
   8 ftpusers \- file listing users to be disallowed ftp login privileges
   9 .SH SYNOPSIS
  10 .LP
  11 .nf
  12 \fB/etc/ftpd/ftpusers\fR
  13 .fi
  14 
  15 .SH DESCRIPTION
  16 .sp
  17 .LP
  18 The \fBftpusers\fR file lists users for whom \fBftp\fR login privileges are
  19 disallowed. Each \fBftpuser\fR entry is a single line of the form:
  20 .sp
  21 .in +2
  22 .nf
  23 name
  24 .fi
  25 .in -2
  26 
  27 .sp
  28 .LP
  29 where \fBname\fR is the user's login name.
  30 .sp
  31 .LP
  32 The FTP Server, \fBin.ftpd\fR(1M), reads the \fBftpusers\fR file. If the login
  33 name of the user matches one of the entries listed, it rejects the login
  34 attempt.
  35 .sp
  36 .LP
  37 The \fBftpusers\fR file has the following default configuration entries:
  38 .sp
  39 .in +2
  40 .nf
  41 root
  42 daemon
  43 bin
  44 sys
  45 adm
  46 lp
  47 uccp
  48 nuucp
  49 smmsp
  50 listen
  51 nobody
  52 noaccess
  53 nobody4
  54 .fi
  55 .in -2
  56 
  57 .sp
  58 .LP
  59 These entries match the default instantiated entries from \fBpasswd\fR(4). The
  60 list of default entries typically contains the superuser \fBroot\fR and other
  61 administrative and system application identities.
  62 .sp
  63 .LP
  64 The root entry is included in the \fBftpusers\fR file as a security measure
  65 since the default policy is to disallow remote logins for this identity. This
  66 policy is also set in the default value of the \fBCONSOLE\fR entry in the
  67 \fB/etc/default/login\fR file. See \fBlogin\fR(1). If you allow \fBroot\fR
  68 login privileges by deleting the root entry in \fBftpusers\fR, you should also
  69 modify the security policy in \fB/etc/default/login\fR to reflect the site
  70 security policy for remote login access by \fBroot\fR.
  71 .sp
  72 .LP
  73 Other default entries are administrative identities that are typically assumed
  74 by system applications but never used for local or remote login, for example
  75 \fBsys\fR and \fBnobody\fR. Since these entries do not have a valid password
  76 field instantiated in \fBshadow\fR(4), no login can be performed.
  77 .sp
  78 .LP
  79 If a site adds similar administrative or system application identities in
  80 \fBpasswd\fR(4) and \fBshadow\fR(4), for example, \fBmajordomo\fR, the site
  81 should consider including them in the \fBftpusers\fR file for a consistent
  82 security policy.
  83 .sp
  84 .LP
  85 Lines that begin with \fB#\fR are treated as comment lines and are ignored.
  86 .SH FILES
  87 .sp
  88 .ne 2
  89 .na
  90 \fB\fB/etc/ftpd/ftpusers\fR\fR
  91 .ad
  92 .RS 22n
  93 A file that lists users for whom \fBftp\fR login privileges are disallowed.
  94 .RE
  95 
  96 .sp
  97 .ne 2
  98 .na
  99 \fB\fB/etc/ftpusers\fR\fR
 100 .ad
 101 .RS 22n
 102 See \fB/etc/ftpd/ftpusers\fR. This file is deprecated, although its use is
 103 still supported.
 104 .RE
 105 
 106 .sp
 107 .ne 2
 108 .na
 109 \fB\fB/etc/default/login\fR\fR
 110 .ad
 111 .RS 22n
 112 
 113 .RE
 114 
 115 .sp
 116 .ne 2
 117 .na
 118 \fB\fB/etc/passwd\fR\fR
 119 .ad
 120 .RS 22n
 121 password file
 122 .RE
 123 
 124 .sp
 125 .ne 2
 126 .na
 127 \fB\fB/etc/shadow\fR\fR
 128 .ad
 129 .RS 22n
 130 shadow password file
 131 .RE
 132 
 133 .SH ATTRIBUTES
 134 .sp
 135 .LP
 136 See \fBattributes\fR(5) for descriptions of the following attributes:
 137 .sp
 138 
 139 .sp
 140 .TS
 141 box;
 142 c | c
 143 l | l .
 144 ATTRIBUTE TYPE  ATTRIBUTE VALUE
 145 _
 146 Interface Stability     See below.
 147 .TE
 148 
 149 .sp
 150 .LP
 151 The interface stability for \fB/etc/ftpd/ftpusers\fR is Volatile. The interface
 152 stability for \fB/etc/ftpusers\fR is (Obsolete).
 153 .SH SEE ALSO
 154 .sp
 155 .LP
 156 \fBlogin\fR(1), \fBin.ftpd\fR(1M), \fBftpaccess\fR(4), \fBftphosts\fR(4),
 157 \fBpasswd\fR(4), \fBshadow\fR(4), \fBattributes\fR(5), \fBenviron\fR(5)