[CentOS] CentOS 7 처음 설치 후 설정

1. disable Firewall(iptables) 

$ sudo systemctl stop firewalld.service

$ sudo systemctl disable firewalld.service

$ sudo iptables -F 

2. disable SELINUX

# sed -i 's/SELINUX=enforcing/SELINUX=disabled/' /etc/selinux/config

3. disable NetworkManager 

$ sudo systemctl disable NetworkManager.service 

$ sudo chkconfig network on

$ sudo reboot

4. Network

$ sudo sed -i 's/ONBOOT=no/ONBOOT=yes/' /etc/sysconfig/network-scripts/eno16777736

5. disable IPv6

$ sudo vi /etc/default/grub

GRUB_CMDLINE_LINUX="ipv6.disable=1 rd.lvm.lv=fedora/swap rd.md=0.....

$ sudo grub2-mkconfig -o /boot/grub2/grub.cfg

$ sudo reboot

6. Update System

$ sudo yum -y install yum-plugin-fastestmirror

$ sudo yum -y update