1ftpusers(4)                      File Formats                      ftpusers(4)
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NAME

6       ftpusers - file listing users to be disallowed ftp login privileges
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SYNOPSIS

9       /etc/ftpd/ftpusers
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DESCRIPTION

13       The  ftpusers file lists users for whom ftp login privileges are disal‐
14       lowed. Each ftpuser entry is a single line of the form:
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16         name
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20       where name is the user's login name.
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23       The FTP Server, in.ftpd(1M), reads the ftpusers file. If the login name
24       of  the  user  matches  one of the entries listed, it rejects the login
25       attempt.
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28       The ftpusers file has the following default configuration entries:
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30         root
31         daemon
32         bin
33         sys
34         adm
35         lp
36         uccp
37         nuucp
38         smmsp
39         listen
40         nobody
41         noaccess
42         nobody4
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46       These entries match the default instantiated  entries  from  passwd(4).
47       The  list  of default entries typically contains the superuser root and
48       other administrative and system application identities.
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51       The root entry is included in the ftpusers file as a  security  measure
52       since  the  default  policy is to disallow remote logins for this iden‐
53       tity. This policy is also set in the default value of the CONSOLE entry
54       in  the  /etc/default/login file. See login(1). If you allow root login
55       privileges by deleting the root entry in ftpusers, you should also mod‐
56       ify the security policy in /etc/default/login to reflect the site secu‐
57       rity policy for remote login access by root.
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60       Other default entries are administrative identities that are  typically
61       assumed  by  system  applications  but  never  used for local or remote
62       login, for example sys and nobody. Since these entries do  not  have  a
63       valid  password  field  instantiated in shadow(4), no login can be per‐
64       formed.
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67       If a site adds similar administrative or system application  identities
68       in  passwd(4)  and  shadow(4),  for example, majordomo, the site should
69       consider including them in the ftpusers file for a consistent  security
70       policy.
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73       Lines that begin with # are treated as comment lines and are ignored.
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FILES

76       /etc/ftpd/ftpusers    A file that lists users for whom ftp login privi‐
77                             leges are disallowed.
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80       /etc/ftpusers         See /etc/ftpd/ftpusers. This file is  deprecated,
81                             although its use is still supported.
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84       /etc/default/login
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87       /etc/passwd           password file
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90       /etc/shadow           shadow password file
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ATTRIBUTES

94       See attributes(5) for descriptions of the following attributes:
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99       ┌─────────────────────────────┬─────────────────────────────┐
100       │      ATTRIBUTE TYPE         │      ATTRIBUTE VALUE        │
101       ├─────────────────────────────┼─────────────────────────────┤
102       │Availability                 │SUNWftpr                     │
103       ├─────────────────────────────┼─────────────────────────────┤
104       │Interface Stability          │See below.                   │
105       └─────────────────────────────┴─────────────────────────────┘
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108       The  interface stability for /etc/ftpd/ftpusers is Volatile. The inter‐
109       face stability for /etc/ftpusers is (Obsolete).
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SEE ALSO

112       login(1), in.ftpd(1M), ftpaccess(4), ftphosts(4), passwd(4), shadow(4),
113       attributes(5), environ(5)
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117SunOS 5.11                        1 May 2003                       ftpusers(4)
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