In the Great God HONGYANG and Guo Lin of micro-channel public number push articles we found this good news, the first time registered account, apply for under the order, after all, a limited number. Although the two big God said very detailed, but unfortunately did not take miss CentOS, White Ubuntu, WindowsServer these server systems, or in some places is not very clear, the saying goes, the inquisitor asked in the end, not only to know these even know why ; after a period of pondering. Still figured it out.
Same of different and Ubuntu CentOS
CentOS (Community ENTerprise Operating System) is one of the Linux distributions, it comes from the source code for Red Hat Enterprise Linux release in accordance with the provisions of the open-source compiled with. Because from the same source code, so some require a high degree of stability CentOS server to replace the commercial version of Red Hat Enterprise Linux use.
And Ubuntu is a desktop-application-based Linux operating system, its name comes from the Southern African Zulu or Hausa of "ubuntu" word (translated as I helped care or Ubuntu), Ubuntu and Debian-based distributions GNOME desktop environment, with different Debian is that it will be released every six months a new version. Ubuntu aims to provide a new operating system, while relatively stable mainly constructed by the free software made for the average user. Ubuntu has a huge community of power users can easily get help from the community.
The same point: both for the current version of the same individuals and small teams common service-level Linux operating system, software libraries available online that can be easily installed into a lot of open-source software and libraries. Both use as the basis for bash shell, so in a lot of basic commands, and centos ubuntu difference is not very obvious, but ubuntu to do even better on the desktop interface of choice and if a lot of people are starting to learn linux from interest usually ubuntu, after all, many people are accustomed to operating in the desktop graphics.
Differences: There are still many differences on Centos and Ubuntu habits and commands, the following simple list here:
1.centos newly created non-root user is not sudo permissions, if you need to use sudo permissions must be added to the account and permissions in / etc / sudoers in, so the switch to the root account only when you need to enter: su, adding the root account password. In Ubuntu, generally using sudo + command, if it is the first time the user will be prompted to enter the current password (not the root password)
2. Online software installation, centos yum command is used, and is used in ubuntu apt-get command. In addition there are a yum search touch software from the software source method: yum search + Software name
3.centos from redhat, centos therefore support the installation of the rpm format, but ubuntu is clearly not supported.
4. After all, different companies make different releases, the location of many of the configuration file and the default file paths are very different, this process requires the use of a gradually began to feel.
How to apply for official mirrored Cloud Hosting options
Login Change Password
Order payment is completed, find console - Cloud Hosting - Cloud Hosting can see that you have the current application, as shown below
After the application is successful, you will receive an SMS informing you of the password server, the proposed modification, so she was more easy to remember
Configure the server, install JDK, Tomcat deployment
noVNC Login: can of course, on the upper right corner of FIG remote connection, the terminal jumps to the command given by the official mode jingdong cloud, Send CtrlAltDel top right corner of the button below , then left output terminal box, will load complete, you are prompted to log in , which is the official help documentation provided by logging on to Windows instance (provided that when the cloud host configuration you choose WindowsServer system image), VNC Log
yum(全称为 Yellow dog Updater, Modified)是一个在Fedora和RedHat以及SUSE中的Shell前端软件包管理器。基於RPM包管理,能够从指定的服务器自动下载RPM包并且安装,可以自动处理依赖性关系,并且一次安装所有依赖的软体包,无须繁琐地一次次下载、安装。yum提供了查找、安装、删除某一个、一组甚至全部软件包的命令,而且命令简洁而又好记。