CentOS 7.X install Realtek rtl8822be WiFi and Bluetooth
1. $ su - && yum install git 2. $ git clone https://github.com/synthtc/rtlwifi-next 3. $ make 4. $ make install 5. $ modprobe rtl8822be && rtlwifi p.s. clean cache yum rm -rf /var/cache/yum/* refer to https://github.com/lwfinger/rtlwifi_new/issues/247