Linux 配置，命令

发表于

服务器配置

添加管理员用户

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# useradd test
# passwd test
# mkdir -p /home/test/.ssh
# chown 600 /home/test/.ssh/
# vim /etc/sudoers
# cd /home/test/.ssh/
# rz
# # Received /Users/uiste/.ssh/id_rsa.pub
# ls
# mv id_rsa.pub authorized_keys
# ls -al
# chown test:test authorized_keys 
# chmod 700 authorized_keys 
# ls -al
# chmod 600 authorized_keys 
# ls
# pwd
# chown test:test /home/test/.ssh
# ls -al /home/test/

# 自定义生成ssh key
root@iZbp1bb2egi7vzn29c1dhvZ ~]# su - www
上一次登录：二 1月  1 22:49:16 CST 2019pts/1 上
[www@iZbp1bb2egi7vzn29c1dhvZ ~]$ sudo su -
Last login: Tue Jan  1 22:49:46 CST 2019 from 223.167.32.98 on pts/2
[root@iZbp1bb2egi7vzn29c1dhvZ ~]# su - www
Last login: Tue Jan  1 22:50:58 CST 2019 on pts/2
[www@iZbp1bb2egi7vzn29c1dhvZ ~]$ ssh-keygen -t rsa


# useradd test

修改管理员配置
# vim /etc/sudoers

## Allow root to run any commands anywhere 
root    ALL=(ALL)       ALL
test     ALL=(ALL)       NOPASSWD: ALL

切换用户

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# 切换自定用户
# su - test

# 切换root用户
# sudo su -

配置SSH

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chown test:test /home/test/
chmod 755 /home/test/.ssh/

[test@izbp14s0hny0qt9wghm6lcz .ssh]$ ls -al
total 12
drwxr-xr-x 2 test test 4096 Sep 26 10:54 .
drwx------ 3 test test 4096 Sep 26 10:44 ..
-rw------- 1 test test  411 Sep 26 10:36 authorized_keys

[test@izbp14s0hny0qt9wghm6lcz .ssh]$ cat authorized_keys 
ssh-rsa AAAAB3Nza...E27svfEF6qsVb9B5dooFFFS5hNjyJJma8dyCLzmpAKXH......8XDB+ofAZYkF/7NyU9ON0OwkKWJL4jL570kfazGgJQQwrjWh5x5.....nLsLvQB2rnjbeyV+RXnNemMutokrjIgrT Administrator@PC-20180613WOHL
```  

## 常用命令
* 递归创建文件夹
`mkdir -p /data/yiilogs/`

* 修改文件夹用户
`chown test:test /data/yiilogs/`

* 修改文件读写权限
`chmod 777 /data/yiilogs/`

* 查看端口占用情况
`netstat -tunlp | grep 3306`

* 匹配log中自定内容信息

tail -f /data/yiilog/xxx/access_app_nginx.log |grep ‘interface-loan/xxx’
`