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This article is to share with you about the new features of centos7, the editor thinks it is very practical, so I share it with you to learn. I hope you can get something after reading this article.

New features and installation of centos7 system

(1) New features of centos7

Identity Management for 1:centos7:

(1) using kerberos's cross-platform trust mechanism, active directories that can drink windows are compatible.

(2) REALMD adds centos or rhel to windows active Directory to achieve automatic support

2: performance management:

Provide a new architecture, a new graphical interface for × × can be managed, can be used to analyze and collect system information

3: virtualization support:

(1) it is compatible with vmarevshpere virtualization architecture and comes with 3D driver, open tools.

(2) Virtual Istroke O: each virtual machine provides an excuse to call the underlying PCI device to achieve kernel-level isolation. Improve the safety and compatibility of machines

(3) nested virtualization support: kvm virtualization environment can be built in openstack virtualization.

(4) qcow2 snapshot file format support

(5) support usb3.0

4: file system:

Centos7 supports xfs system files, while versions below centos7 use ext4, 3 system files

Centos7 features high read and write performance and high speed. It is suitable for big data storage. It can reach 8EB for a single file system and 16T for a single file.

5: network management:

New Network Management NMCLI

6: service management:

Invoke the service script using systemctl

Systemd replaces the previous version of sysV in which systemd manages system services. Different from the original sysv process management, it can automatically resolve the dependencies between services and support the parallel startup of services! Faster, more stable, and also supports Docker technology

(2) next install the server system of centos7

1: first, it is recommended to install a 64-bit artificial system.

Mount CD image, boot system, system hard disk to 60GB memory, take 4GB as an example to boot the system

2: configure the configuration item

(1) the first is the language format

(2) then perform various configuration items such as time, disk, keyboard. Here, unlike configurations below version 7, those below version 7 are the next step after each configuration is completed, while version 7 is configured together.

For example, time configuration:

Here the language and keyboard remain the default, disk partition:

Here, take the "/" partition as an example; except for the type of volume other than / boot, use the standard type, and the other three "/ user / swap"

All use the type of LVM for future expansion

Accept the changed disk configuration

Use GUI graphical installation during installation; also check the development tools

The network card can be configured according to the situation whether it is obtained through DHCP or manually.

After that, you can install it, and you can set the password of the root user at the same time.

After that, start the installation, and then enter the bootstrap program after completion.

Initialize: enter the sequence as prompted

Enter the graphical interface when you are finished.

If you use a graphical installation, you must set up a user here. Login for graphical interface

For example: user zhangsan password 123456

After setting up, the system will log in to the system after using zhangsan.

If you want to log in using the root user, use the command su-root to switch to the root user

After that, the system can be tested and worked.

Third, if you install with characters, you can later install the required software packages through yum tools, such as development kits, or graphics packages. For example, you can install graphics desktops through yum-y groupinstall * Desktop*. It is no longer demonstrated here, it should be noted that you can use minimized installation when installing the package.

If you use character installation, subsequent graphical login users do not have to set it. Log in directly using the root user

These are the new features of centos7, and the editor believes that there are some knowledge points that we may see or use in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.

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