ubuntu修改主机名 主机名在/etc/hostname文件中了,只在打开这个文件进行修改,重启计算机即可. 一.查看主机名 $ hostname #查看主机名 cdyemail 二.通过指令修改主机名 $ hostname server #修改主机名,但提示我必须用root权限 hostname: you must be root to change the host name $ sudo hostname server #修改主机名 $ hostname #查看主机名
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by Pradeep Kumar · Published November 19, 2017 · Updated November 19, 2017 DNS or Domain Name System, as we know is an internet service that is used to translate the user friendly domain into computer friendly IP addresses. Not only can we translate
1.在Oracle数据库中,有个示例模式scott和系统模式system. 2.在安装数据库时只是设置了system的口令,即密码,如果忘记的话可以使用如下办法,首先打开sqlplus工具或者cmd命令行,使用命令修改新的口令,这里我先打开cmd命令行,然后输入下列命令: sqlplus / as sysdba; alter user system identified by 新口令; 注:本来不想改的,为了给大家看效果,所以改了,附上图片,哈哈! 修改完后,关闭重新打开cmd命令行,连接模式并