Home Database Mysql Tutorial 阿里云服务器新建用户具体方法_MySQL

阿里云服务器新建用户具体方法_MySQL

Jun 01, 2016 pm 01:25 PM
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阿里云

bitsCN.com 一. 新建服务器用户:
 
用户管理,主要的工作就是建立一个合法的用户帐户、设置和管理用户的密码、修改用户帐户的属性以及在必要时删除已经废弃的用户帐号。

1)增加一个新用户

在Linux系统中,只有root用户才能够创建一个新用户,如下的命令将新建一个登录名user1的用户。

#useradd user1

但是,这个用户还不能够登录,因为还没给它设置初始密码,而没有密码的用户是不能够登录系统的。在默认情况下,将会在/home目录下新建一个与用户名相同的用户主目录。

在Linux中,新增一个用户的同时会创建一个新组,这个组与该用户同名,而这个用户就是该组的成员。如果你想让新的用户归属于一个已经存在的组,则可以使用如下命令:

#useradd -g usergroup1 user1

这样该用户就属于usergroup1组的一员了。而如果想让其再属于一个组usergroup2,那么使用:

#useradd -G usergroup2 user1

完成了这一操作后,你还应该使用passwd命令为其设置一个初始密码。

2)删除一个用户

删除用户,只需使用一个简单的命令“userdel用户名”即可。不过最好将它留在系统上的文件也删除掉,你可以使用“userdel-r用户名”来实现这一目的。

3)增加一个组

我们可以根据自己的需要创建用户组:

groupadd

4)删除一个组

同样的,我们有时会需要删除一个组,它的命令就是groupdel。

二. 安装mysql和创建mysql用户:
 
1.[root@test1 local]# yum -y install mysql mysql-server
这条命令同时安装了mysql客户端和mysql服务器端

2.测试是否成功可运行netstat看Mysql端口是否打开,如打开表示服务已经启动,安装成功。Mysql默认的端口是3306。
[root@test1 local]# netstat
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