Debian Handbook/09_unix-services — Chinese (Simplified) @ Hosted Weblate: [Unit] Description=OpenBSD Secure Shell server Documentation=man:sshd(8) man:sshd_config(5) After=network.target auditd.service ConditionPathExists=!/etc/ssh/sshd_not_to_be

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[Unit]
Description=OpenBSD Secure Shell server
Documentation=man:sshd(8) man:sshd_config(5)
After=network.target auditd.service
ConditionPathExists=!/etc/ssh/sshd_not_to_be_run

[Service]
EnvironmentFile=-/etc/default/ssh
ExecStartPre=/usr/sbin/sshd -t
ExecStart=/usr/sbin/sshd -D $SSHD_OPTS
ExecReload=/usr/sbin/sshd -t
ExecReload=/bin/kill -HUP $MAINPID
KillMode=process
Restart=on-failure
RestartPreventExitStatus=255
Type=notify
RuntimeDirectory=sshd
RuntimeDirectoryMode=0755

[Install]
WantedBy=multi-user.target
Alias=sshd.service

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	Systemd executes several processes, in charge of setting up the system: keyboard, drivers, filesystems, network, services. It does this while keeping a global view of the system as a whole, and the requirements of the components. Each component is described by a “unit file” (sometimes more); the general syntax is derived from the widely-used “*.ini files“ syntax, with <literal><replaceable>key</replaceable> = <replaceable>value</replaceable></literal> pairs grouped between <literal>[<replaceable>section</replaceable>]</literal> headers. Unit files are stored under <filename>/lib/systemd/system/</filename> and <filename>/etc/systemd/system/</filename>; they come in several flavors, but we will focus on “services” and “targets” here.	Systemd 运行多个进程，设置系统：键盘、驱动程序、文件系统、网络、服务等。同时全面查看系统，以及必要的配件。每个配件都视为一个 “单元文件” (有时为多个)；通用的语法源自于常用的 “*.ini files“ 语法，包括配对的 <literal><replaceable>key</replaceable> = <replaceable>value</replaceable></literal> 列在 <literal>[<replaceable>section</replaceable>]</literal> 标头内。单元文件保存在 <filename>/lib/systemd/system/</filename> 与 <filename>/etc/systemd/system/</filename> 内；以多种方式呈现，目前专注在 “services” 与 “targets”。
	<primary><command>systemd</command></primary><secondary><filename>.service</filename> file</secondary>	<primary>管理器</primary><secondary>显示管理器</secondary>
	<primary><filename>/etc</filename></primary><secondary><filename>/etc/systemd/system/</filename></secondary><see><command>systemd</command></see>
	<primary>service</primary><secondary><filename>ssh.service</filename></secondary>	<primary>服务</primary><secondary>重启</secondary>
	A systemd “<filename>.service</filename> file” describes a process managed by systemd. It contains roughly the same information as old-style init-scripts, but expressed in a declaratory (and much more concise) way. Systemd handles the bulk of the repetitive tasks (starting and stopping the process, checking its status, logging, dropping privileges, and so on), and the service file only needs to fill in the specifics of the process. For instance, here is the service file for SSH:	systemd的 “service” 文件描述被 systemd 管理的进程。包括与旧的 init-scripts 相同的数据，但以声明 (同时较为简洁) 的方式表述。Systemd 处理大量重复的工作 (启动与终止进程、检查其状态、日志记录、去除特权等)，以及只供特定进程使用的服务文件。例如，以下是 SSH 用到的服务档：
	[Unit] Description=OpenBSD Secure Shell server Documentation=man:sshd(8) man:sshd_config(5) After=network.target auditd.service ConditionPathExists=!/etc/ssh/sshd_not_to_be_run [Service] EnvironmentFile=-/etc/default/ssh ExecStartPre=/usr/sbin/sshd -t ExecStart=/usr/sbin/sshd -D $SSHD_OPTS ExecReload=/usr/sbin/sshd -t ExecReload=/bin/kill -HUP $MAINPID KillMode=process Restart=on-failure RestartPreventExitStatus=255 Type=notify RuntimeDirectory=sshd RuntimeDirectoryMode=0755 [Install] WantedBy=multi-user.target Alias=sshd.service	[Unit] Description=OpenBSD Secure Shell server After=network.target auditd.service ConditionPathExists=!/etc/ssh/sshd_not_to_be_run [Service] EnvironmentFile=-/etc/default/ssh ExecStart=/usr/sbin/sshd -D $SSHD_OPTS ExecReload=/bin/kill -HUP $MAINPID KillMode=process Restart=on-failure [Install] WantedBy=multi-user.target Alias=sshd.service
	The <literal>[Unit]</literal> section contains generic information about the service, like its description and manual page resources, as well as relations (dependency and order) to other services. The <literal>[Service]</literal> part contains the declarations related to the service execution (starting, stopping, killing, restarting), directories and configuration file(s) used. The last section, <literal>[Install]</literal>, again carries generic information into which targets to install the service and, in this case, the alias that can be used instead of the service name. As you can see, there is very little code in there, only declarations. Systemd takes care of displaying progress reports, keeping track of the processes, and even restarting them when needed. The syntax of these files is fully described in several manual pages (e.g. <citerefentry><refentrytitle>systemd.service</refentrytitle> <manvolnum>5</manvolnum></citerefentry>, <citerefentry><refentrytitle>systemd.unit</refentrytitle> <manvolnum>5</manvolnum></citerefentry>, <citerefentry><refentrytitle>systemd.exec</refentrytitle> <manvolnum>5</manvolnum></citerefentry>, etc.).
	<primary><command>systemd</command></primary><secondary><filename>.target</filename> file</secondary>	<primary>管理器</primary><secondary>显示管理器</secondary>
	A systemd “<filename>.target</filename> file” describes a state of the system where a set of services are known to be operational. It can be thought of as an equivalent of the old-style runlevel. One of the pre-defined targets is <literal>local-fs.target</literal>; when it is reached, the rest of the system can assume that all local filesystems are mounted and accessible. Other targets include <literal>network-online.target</literal> and <literal>sound.target</literal> (for a full list of special targets see <citerefentry><refentrytitle>systemd.special</refentrytitle> <manvolnum>7</manvolnum></citerefentry>). The dependencies of a target can be listed either within the target file (in the <literal>Requires=</literal> line), or using a symbolic link to a service file in the <literal>/lib/systemd/system/<replaceable>targetname</replaceable>.target.wants/</literal> directory. For instance, <filename>/etc/systemd/system/printer.target.wants/</filename> contains a link to <filename>/lib/systemd/system/cups.service</filename>; systemd will therefore ensure CUPS is running in order to reach <literal>printer.target</literal>.	systemd的 “target” 文件描述系统的现状，包括可操作的服务。不妨视为相当于旧的运行阶段作业。其中一个目标是 <literal>local-fs.target</literal>；进入之后，系统的其他部分假设所有的本地文件系统均己挂载并可使用。其他的目标包括 <literal>network-online.target</literal> 与 <literal>sound.target</literal>。目标的相依性可以列在目标文件内 (于 <literal>Requires=</literal> 列) 或使用符号链接至在 <literal>/lib/systemd/system/<replaceable>targetname</replaceable>.target.wants/</literal> 文件夹内的服务文件。例如，<filename>/etc/systemd/system/printer.target.wants/</filename> 包括一个链接至 <filename>/lib/systemd/system/cups.service</filename>；systemd 将确保 CUPS 已运行才进行 <literal>printer.target</literal>。
	Since unit files are declarative rather than scripts or programs, they cannot be run directly, and they are only interpreted by systemd; several utilities therefore allow the administrator to interact with systemd and control the state of the system and of each component.	单元文件是声明性的而不是脚本或程序，不能直接运行，只能被 systemd 解译；因些工具允许管理者与 systemd 交互且控制系统的状态与其组件。
	<primary><command>systemd</command></primary><secondary><command>systemctl</command></secondary><see><command>systemctl</command></see>

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English	Chinese (Simplified)
default	默认	Debian Handbook
description	说明	Debian Handbook
ON	打开	Debian Handbook
server	服务器	Debian Handbook
service	服务	Debian Handbook
target	对象	Debian Handbook
type	类型	Debian Handbook

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zh-CN/09_unix-services.po, string 61