Linux Redhat Basic Operations 5

PS # # (All) is the process running on the front end

PS-A # #shell中的进程

-X # #shell processes running in the background

Check the resource occupancy rate to add O, and%

Aux is the view process,%cpu,%mem is the resource occupancy rate of the process

It is not ctl+c to stop when running in the background.

CTL Z # #打入后台

Jobs # #查看后台运行的进程

Gedit & # #一个文件在创建的时候就让他在后台运行

Kill to send a signal to the tool

1 Reload # #不停止的情况下, let the process reread the configuration file

2 # #ctl C Delete process

3 # #内存中鼠标信号

8.top command

18 Pause

19 Open

CTL Z # #打入后台

U username

K Signal

H

S # #设置每隔几秒刷新

M

C

R # #重新设定优先级, the smaller the number, the higher the priority

Systemctl Start sshd # #开启sshd服务

Stop

Restart

Systemctl List-dependencies # #列出默认服务的依赖关系

List-dependencies sshd # #列出sshd服务的依赖关系, that is, what service is needed to start the service first

list-units# #列出默认的服务开启状态

Llst-unit-files # #

Set-default Muti-user.target # #关闭图形界面

Set-default Graphical.target # #在命令行下打开图形界面, just back up.

The premise is rm-fr/root/.ssh/# #删除前提条件

Ssh-keygen # #先创建秘钥对, Public and private key, locks and keys

cd/root/.ssh/# #进入目录

Ssh-copy-id-i id_rsa.pub root.172.25.20.11 # #用公钥锁定本机 (server),

SCP Id_rsa [Email protected]:/root/.ssh/# #分发密钥, give the key to the client

RHT-VMCRL fullreset Desktop # #重起失败后要删掉缓存文件virt-manager

Vim/etc/ssh/sshd_config # #修改配置文件, 78 lines to No, finished systemctl restart sshd Restart, other users do not have a private key can not access your server.

Linux Redhat Basic Operations 5