1. IP address configuration
guarantee linux can Normal Internet access
2, network yum source code (default is configured, only Just need to understand it)
3. Commonly used yum commands
(1) query
#yum list # p>
#yum search keyword search for all keyword-related packages on the server
(2) Installation
< p> #yum -y install package names
options:
install install
-y automatically install
< p> (3)Upgrade
#yum -y updatePack name
options:
update p> -y Automatically answer yes
-y Automatically answer yes
is not recommended to use yum to upgrade, it is more dangerous! ! !
（4) Uninstall
#yum -y remove Package name
options:
remove uninstall
-y automatically answers yes
Note : Try not to use yum to uninstall the software! ! ! ! (Uninstalling yum will cause some dependencies to be uninstalled)
4, yum software group management commands
# yum group list lists all possible software group list span>
#yum groupinstall software group name installs the specified software group, the group name can be queried from the grouplist
#yum groupremove software group name uninstall specified software group name