CentOS network change

System version: CentOS-6.4-x86_64-minimal this system is CD version, so it is basically a minimal installation version. Now, the system's default source is replaced with an easy source to ensure the speed of software download. Step 1: Download the new source and back up the local source [root @ localhost ~] # Cd/etc/yum. repos. d/[root @ localhost ~] # & N system version: CentOS-6.4-x86_64-minimal this system is CD version, so it is basically a minimal installation version. Now, the system's default source is replaced with an easy source to ensure the speed of software download. The procedure is as follows:
1. download the new source and back up the local source [root @ localhost ~] # Cd/etc/yum. repos. d/[Root @ localhost ~] # Wget http://mirrors.163.com/.help/CentOS6-Base-163.repo[Root @ localhost ~] # Mv CentOS-Base.repo CentOS-Base.repo.bak[Root @ localhost ~] # Mv CentOS6-Base-163.repo CentOS-Base.repo2. update yum source [root @ localhost ~] # Yum clean all & yum makecache & yum update-y3. complete. Yum command tool example 1. upgrade the system [root @ localhost ~] # Yum update 2. install the specified software package [root @ localhost ~] # Yum-y install mysql-server 3. upgrade the specified software package [root @ localhost ~] # Yum-y update mysql 4. uninstall the specified software package [root @ localhost ~] # Yum-y remore mysql 5. View installed and available software groups in the system. for available software groups, you can choose to install [root @ localhost ~] # Yum grouplist 6. install a software group in the available software group displayed in the previous command [root @ localhost ~] # Yum-y groupinstall Emacs 7. update the software package in the specified software group [root @ localhost ~] # Yum-y groupupdate Emacs 8. uninstall the software package in the specified software group [root @ localhost ~] # Yum-y groupremove Emacs 9. clear the cache rpm header file and package file [root @ localhost ~] # Yum clean all 10. search for related software packages [root @ localhost ~] # Yum-y search Emacs 11. display the information of the specified software package [root @ localhost ~] # Yum info Emacs 12. query the dependent package of a specified software package [root @ localhost ~] # Yum deplist emacs 13. list all software packages starting with yum [root @ localhost ~] # Yum list yum \ * 14. list rpm packages installed but not included in the resource library [root @ localhost ~] # Yum list extras