What to do after CentOS is installed

What to do after CentOS is installed
I usually choose liveCD for CentOS x86-64 to install ~
Because I use liveCD as a desktop, liveCD not only has a graphical interface after installation, but also has complete desktop configuration and not many software packages, which is relatively clean to liveDVD ~
The image name looks like this: CentOS-6.5-x86_64-LiveCD.iso

The installation process is silly ~
After installation, I will first open the terminal to the super user to execute mv/etc/yum. repos. d/CentOS-Base.repo/etc/yum. repos. d/CentOS-Base.repo.backup to back up the original repo
Open your browser and go here: Upgrade makecache & yum update to upgrade the system.
If the kernel is upgraded, restart ~

Then go here: https://fedoraproject.org/wiki/EPEL/zh-cn
Find this link: if you are using 6th Enterprise Linux, install this RPM package: epel-release-6-8.noarch.rpm (link address, if you want to click in this post: http://dl.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm)
Then the terminal enters the download directory, install this rpm package, rpm-Uvh epel-release-6-8.noarch.rpm, and then execute yum makecache again to update the cache ~

Next is the rpmfusion source. How can I entertain without this...
Http://rpmfusion.org/
Here: http://rpmfusion.org/Configuration

Download this: http://download1.rpmfusion.org/free/el/updates/6/i386/rpmfusion-free-release-6-1.noarch.rpm
And this: http://download1.rpmfusion.org/nonfree/el/updates/6/i386/rpmfusion-nonfree-release-6-1.noarch.rpm
Enter the download directory, and run the rpm-Uvh command on the terminal. Then, run the yum makecache command to update the cache ~

Disable selinux
Edit the/etc/selinux/config file as the root user and change the value of The SELINUX item to disable and enable the SELinux service.
Change to SELINUX = disable to disable SeLinux
Change to SELINUX = enforcing and use SeLinux
To temporarily disable selinux, enter $ sudo setenforce 0 in the terminal.
Delete used Kernel
After the system is upgraded, there are usually several kernels. How can we delete the old kernel:
Rpm-qa | grep kernel // view and list all kernels
Rpm-e kernel name // Delete the kernel with the selected name


Install a multimedia Decoder
First, make sure that the system has installed the rpmfusion source. Enter the following command in the terminal:
$ Sudo yum install ffmpeg-libs gstreamer-ffmpeg libmatrosca xvidcore libdvdread libdvdna v lsdvd
$ Sudo yum install gstreamer-plugins-good gstreamer-plugins-bad gstreamer-plugins-uugly
In this way, the system comes with a player to play music and videos.

Garbled music tags
Most of the methods on the Internet use the following command to convert the tags of files in mp format: mid3iconv-e gbk *. mp3. After this operation, garbled characters are fixed in linux, but garbled characters appear in windows.
The perfect method is to modify the environment variable and modify the/etc/profile file as root:
Add the following two lines to the end of the file:
Export GST_ID3_TAG_ENCODING = GBK: UTF-8: GB18030
Export GST_ID3V2_TAG_ENCODING = GBK: UTF-8: GB18030
After cancellation, re-import the song information to solve the Garbled text.