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O'Reilly Platform
book
可编程网络自动化
by
Jason Edelman
,
Scott S. Lowe
,
Matt Oswalt
January 2023
Intermediate to advanced
458 pages
14h 16m
Chinese
Posts & Telecom Press
Content preview from
可编程网络自动化
46
|
第
3
章
4.
与守护进程相关的其他命令
最后,再简要介绍几个可能会派上用场的命令来结束本节。这些命令的具体参数细节,建
议参阅相关的手册页(使用
man
command
)。
•
可以使用
ss
命令显示守护进程的网络连接。该命令可以列出处于侦听状态的网络套接
字,这种用法尤为实用,有助于确保特定守护进程(后台服务)的联网配置正常工作。
ss -lnt
可以显示正在侦听的
TCP
套接字,
ss -lnu
可以显示正在侦听的
UDP
套接字。
•
ps
命令可用于显示当前处于运行状态的进程信息。
在开始下一节之前,先来快速复习一下之前学过的内容。
•
Linux
的背景和发展历史。
•
文件系统导航和路径的基本知识。
•
基本的文件处理操作(创建文件和目录、移动
/
复制文件和目录以及删除文件和目录)
。
•
后台服务(也称为守护进程)的用法。
下一个主题是
Linux
联网,它建立在本章迄今为止涉及过的许多领域的基础之上。
3.5
Linux
联网
如前所述,本书对
Linux
的介绍主要是为了让你在网络自动化与可编程环境中“上手”该
操作系统。你很可能要在
Linux
中使用
Python
(参见第
4
章
)、
Ansible
(参见第
9
章)和
Jinja
(参见第
6
章)等工具
,
Linux
系统还要与网络中的各种网络设备通信。如果少了
Linux
联网,那么对
Linux
的讨论肯定不完整。说到底,这是一本重在联网的书。
3.5.1
使用接口
Linux
联网的基本要素是
接口
。
Linux
支持不同类型的接口,其中最常见的是物理接口、
VLAN
接口以及桥接接口
。和大多数情况一样,在 ...
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Publisher Resources
ISBN: 9787115606181