147 lines
3.9 KiB
Plaintext
147 lines
3.9 KiB
Plaintext
'\" t
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.\" Title: suauth
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.\" Author: Marek Micha\(/lkiewicz
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.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
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.\" Date: 2024-06-18
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.\" Manual: File Formats and Configuration Files
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.\" Source: shadow-utils 4.16.0
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.\" Language: Chinese Simplified
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.\"
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.TH "SUAUTH" "5" "2024-06-18" "shadow\-utils 4\&.16\&.0" "File Formats and Configuration"
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.\" -----------------------------------------------------------------
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.\" * Define some portability stuff
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.\" -----------------------------------------------------------------
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.\" http://bugs.debian.org/507673
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.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.ie \n(.g .ds Aq \(aq
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.el .ds Aq '
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.\" -----------------------------------------------------------------
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.\" * set default formatting
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.\" -----------------------------------------------------------------
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.\" disable hyphenation
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.nh
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.\" disable justification (adjust text to left margin only)
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.ad l
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.\" -----------------------------------------------------------------
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.\" * MAIN CONTENT STARTS HERE *
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.\" -----------------------------------------------------------------
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.SH "名称"
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suauth \- 详细的 su 控制文件
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.SH "大纲"
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.HP \w'\fB/etc/suauth\fR\ 'u
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\fB/etc/suauth\fR
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.SH "描述"
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.PP
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The file
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/etc/suauth
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is referenced whenever the su command is called\&. It can change the behaviour of the su command, based upon:
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.sp
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.if n \{\
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.RS 4
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.\}
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.nf
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1) the user su is targeting
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.fi
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.if n \{\
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.RE
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.\}
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.PP
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2) 执行 su 命令的用户 (或者他可能属于的组)
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.PP
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文件格式为：以 # 开头的行视为注视，并被忽略；
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.sp
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.if n \{\
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.RS 4
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.\}
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.nf
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to\-id:from\-id:ACTION
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.fi
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.if n \{\
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.RE
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.\}
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.PP
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Where to\-id is either the word
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\fIALL\fR, a list of usernames delimited by "," or the words
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\fIALL EXCEPT\fR
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followed by a list of usernames delimited by ","\&.
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.PP
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from\-id is formatted the same as to\-id except the extra word
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\fIGROUP\fR
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is recognized\&.
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\fIALL EXCEPT GROUP\fR
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is perfectly valid too\&. Following
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\fIGROUP\fR
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appears one or more group names, delimited by ","\&. It is not sufficient to have primary group id of the relevant group, an entry in
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\fB/etc/group\fR(5)
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is necessary\&.
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.PP
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动作只可以使用如下当前支持的选项。
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.PP
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\fIDENY\fR
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.RS 4
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su 的尝试在询问密码之前就被拒绝。
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.RE
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.PP
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\fINOPASS\fR
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.RS 4
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su 尝试自动成功，而且不询问密码。
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.RE
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.PP
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\fIOWNPASS\fR
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.RS 4
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为了成功执行 su，用户必须提供自己的密码。将会提示他们这样。
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.RE
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.PP
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注意，有三个用冒号分割的字段。冒号旁边不能有空格。也请注意，这个文件会被一行一行地依次检查，会使用第一个可用的规则，而不会继续检查文件。这可以让系统管理员使系统尽量符合其期望。
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.SH "示例"
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.sp
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.if n \{\
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.RS 4
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.\}
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.nf
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# sample /etc/suauth file
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#
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# A couple of privileged usernames may
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# su to root with their own password\&.
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#
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root:chris,birddog:OWNPASS
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#
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# Anyone else may not su to root unless in
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# group wheel\&. This is how BSD does things\&.
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#
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root:ALL EXCEPT GROUP wheel:DENY
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#
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# Perhaps terry and birddog are accounts
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# owned by the same person\&.
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# Access can be arranged between them
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# with no password\&.
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#
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terry:birddog:NOPASS
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birddog:terry:NOPASS
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#
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.fi
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.if n \{\
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.RE
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.\}
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.SH "文件"
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.PP
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/etc/suauth
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.RS 4
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.RE
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.SH "缺陷"
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.PP
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可能会有很多潜在问题。文件解析器尤其不能容忍语法错误，不能有无意义的空白符(除了行首和行尾)，并且使用特定的标记分割不同的事情。
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.SH "DIAGNOSTICS"
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.PP
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An error parsing the file is reported using
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\fBsyslogd\fR(8)
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as level ERR on facility AUTH\&.
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.SH "参见"
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.PP
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\fBsu\fR(1)\&.
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