How to Use CentOS 7

How to Use CentOS 7

Recently, gnome and kde of CentOS 7 were used. gnome Desktop is not beautiful, and CPU and MEM usage are not large, but the server load is very high, in the end, the CPU temperature is too high and the automatic shutdown may be caused by the driver problem. Using KDE can solve the problem well;

The process of using kde for installation and personalized environment settings is as follows:

1, centos 7 kde installation is selected in Chinese, but after installation is English, $ LANG is a zh-utf-8; after analysis may be no Chinese Language Pack;

Yum list | grep "kde-*-chinese"

Kde-l10n-Chinese.noarch

Install the package;

Yum-y install kde l10n-Chinese.noarch

Log out or restart after installation;

2. Both gnome and kde support the firefox browser. However, I always feel that firefox is slow in resolution and occupies high resources, so I am keen on google browsers, therefore, install the google browser (although the google server launches tianchao and tianchao shield, the lucky service is still in progress)

In addition to compilation and installation (the compilation and installation time is time-consuming and there are many uncertainties), rpm is used for installation.

Configure yum

32-bit system, copy and save the following content

Google-i386

Name = Google-i386

Baseurl =

Enabled = 1

Gpgcheck = 1

Gpgkey = https://dl-ssl.google.com/linux/linux_signing_key.pub

In a 64-bit system, copy and save the following content:

Google-x86_64

Name = Google-x86_64

Baseurl =

Enabled = 1

Gpgcheck = 1

Gpgkey = https://dl-ssl.google.com/linux/linux_signing_key.pub

Install after Configuration

Open the terminal and install chrome of different versions.

Stable version: yum install google-chrome-stable

Install the beta version: yum install google-chrome-beta

Install an unstable version: yum install google-chrome-beta

However, a gpg key error occurs. Do not worry;

Yum -- nogpgcheck localinstall/var/cache/yum/x86_64/7/google-x86_64/packages/google-chrome-stable-39.0.2171.99-1.x86_64.rpm

You can use the google browser after it is installed. If it is used in the root environment, you need to add "-user-data-dir" OK & KO after the browser command.

3. Virtual Machine Installation

After testing, due to kernel version and C file problems, vmware cannot run after it is installed in centos 7, and the search does not solve the problem. Fortunately, we have activated the original virtualbox to perfectly support virtualbox, it can also be installed in yum;

First, set the environment

Yum install kernel-devel kernel-headers gcc -*

Gcc-* is the compilation environment I installed by myself!

You 'd better update the system.

Yum update

Download Public Key

Wget http://download.virtualbox.org/virtualbox/debian/oracle_vbox.asc

Import Public Key

Rpm -- import Oracle_vbox.asc

Download the yum repository file

Wget http://download.virtualbox.org/virtualbox/rpm/el/virtualbox.repo-O/etc/yum. repos. d/virtualbox. repo

Install virtualbox

Yum install VirtualBox-4.3

OK. After the installation is complete, you can back up the installation package after downloading the installation package. Sometimes the download is slow;

4. Input Method

Centos7 uses the IBUS input method by default. I think Chinese people often use the sogou input method, so it is easier to accept the fcitx Input Method of little penguin on linux.

1. Set the epel source. epel should be a common yum source in centos.

# Yum install epel-release

Configure yum configuration file. repo

# Yum-config-manager -- add-repo = https://copr.Fedoraproject.org/coprs/mosquito/myrepo/repo/epel-7/mosquito-myrepo-epel-7.repo

Various input methods

# Yum install fcitx-googlepinyin fcitx-cloudpinyin # Google PinYin Input Method

# Yum install fcitx-sunpinyin-data fcitx-cloudpinyin # sunpinyin Input Method