{"componentChunkName":"component---src-templates-acg-portal-new-template-tsx","path":"/kmpz3qhh9","result":{"data":{"markdownRemark":{"html":"

systemd是在Linux下，与SysV和LSB初始化脚本兼容的系统和服务管理器。systemd使用socket和D-Bus来开启服务，提供基于守护进程的按需启动策略，支持快照和系统状态恢复，维护挂载和自挂载点，实现了各服务间基于从属关系的一个更为精细的逻辑控制，拥有更高的并行性能。

\n

概念介绍

\n

systemd开启和监督整个系统是基于unit的概念。unit是由一个与配置文件对应的名字和类型组成的（例如：avahi.service unit有一个具有相同名字的配置文件，是守护进程Avahi的一个封装单元）。unit有多重类型，如下表所示。

\n

unit说明表：

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
unit名称后缀名描述
Service unit.service系统服务。
Target unit.target一组systemd units。
Automount unit.automount文件系统挂载点。
Device unit.device内核识别的设备文件。
Mount unit.mount文件系统挂载点。
Path unit.path在一个文件系统中的文件或目录。
Scope unit.scope外部创建的进程。
Slice unit.slice一组用于管理系统进程分层组织的units。
Socket unit.socket一个进程间通信的Socket。
Swap unit.swapswap设备或者swap文件。
Timer unit.timersystemd计时器。
\n

所有的可用systemd unit类型，可在“可用systemd unit类型表”所示的路径下查看。

\n

可用systemd unit类型表：

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
路径描述
/usr/lib/systemd/system/随安装的RPM产生的systemd units。
/run/systemd/system/在运行时创建systemd units。
/etc/systemd/system/由系统管理员创建和管理的systemd units。
","fields":{"slug":"kmpz3qhh9","title":"简介","date":"2026-06-04","extractedHeadings":[]},"headings":[{"value":"概念介绍","depth":2}]}},"pageContext":{"isCreatedByStatefulCreatePages":false,"slug":"kmpz3qhh9","prev":{"id":"impz3qhz2","name":"使用DNF管理软件包","path":"impz3qhz2","filePath":"管理员手册/使用DNF管理软件包/检查更新降级.md","seo":null,"parentIds":["Wmpz3qg1w","bmpz3qhpt"],"parents":[{"id":"Wmpz3qg1w","documentId":"a3cedb77-d87f-4953-b50e-35659eb49726","name":"管理员手册","repoName":"BaiduLinuxOS","filePath":"管理员手册","disabled":false,"path":"Wmpz3qg1w","lastMergeTime":null,"isApiDoc":null,"httpMethod":null,"seo":null,"sourceOrgName":null,"sourceRepoName":null,"sourceDocumentId":""},{"id":"bmpz3qhpt","documentId":"9b33869a-940a-4468-b0a2-08c66b03cbe2","name":"使用DNF管理软件包","repoName":"BaiduLinuxOS","filePath":"管理员手册/使用DNF管理软件包","disabled":false,"path":"bmpz3qhpt","lastMergeTime":null,"isApiDoc":null,"httpMethod":null,"seo":null,"sourceOrgName":null,"sourceRepoName":null,"sourceDocumentId":""}]},"next":{"id":"Nmpz3qhji","name":"特性说明","path":"Nmpz3qhji","filePath":"管理员手册/管理服务/特性说明.md","seo":null,"parentIds":["Wmpz3qg1w","3mpz3qheh"],"parents":[{"id":"Wmpz3qg1w","documentId":"a3cedb77-d87f-4953-b50e-35659eb49726","name":"管理员手册","repoName":"BaiduLinuxOS","filePath":"管理员手册","disabled":false,"path":"Wmpz3qg1w","lastMergeTime":null,"isApiDoc":null,"httpMethod":null,"seo":null,"sourceOrgName":null,"sourceRepoName":null,"sourceDocumentId":""},{"id":"3mpz3qheh","documentId":"b258fdc9-9634-4116-8d84-91cd19c49122","name":"管理服务","repoName":"BaiduLinuxOS","filePath":"管理员手册/管理服务","disabled":false,"path":"3mpz3qheh","lastMergeTime":null,"isApiDoc":null,"httpMethod":null,"seo":null,"sourceOrgName":null,"sourceRepoName":null,"sourceDocumentId":""}]},"parents":[{"id":"Wmpz3qg1w","documentId":"a3cedb77-d87f-4953-b50e-35659eb49726","name":"管理员手册","repoName":"BaiduLinuxOS","filePath":"管理员手册","disabled":false,"path":"Wmpz3qg1w","lastMergeTime":null,"isApiDoc":null,"httpMethod":null,"seo":null,"sourceOrgName":null,"sourceRepoName":null,"sourceDocumentId":""},{"id":"3mpz3qheh","documentId":"b258fdc9-9634-4116-8d84-91cd19c49122","name":"管理服务","repoName":"BaiduLinuxOS","filePath":"管理员手册/管理服务","disabled":false,"path":"3mpz3qheh","lastMergeTime":null,"isApiDoc":null,"httpMethod":null,"seo":null,"sourceOrgName":null,"sourceRepoName":null,"sourceDocumentId":""}],"specificSeo":null}}}