CentOS7 고정IP

/etc/sysconfig/network-scripts
에서 파일이름은.. ip a에 나도는 내 네트워크 정보를 고른다.

TYPE="Ethernet"
PROXY_METHOD="none"
BROWSER_ONLY="no"
BOOTPROTO="dhcp"
DEFROUTE="yes"
IPV4_FAILURE_FATAL="no"
IPV6INIT="yes"
IPV6_AUTOCONF="yes"
IPV6_DEFROUTE="yes"
IPV6_FAILURE_FATAL="no"
IPV6_ADDR_GEN_MODE="stable-privacy"
NAME="enp0s3"
UUID="91af51db-7cf0-4069-9433-77d356b31bca"
DEVICE="enp0s3"
ONBOOT="yes"```

BOOTPROTO="dhcp"를 주석처리하고, BOOTPROTO="none"과 네트워크 정보를 추가합니다.

```TYPE="Ethernet"
PROXY_METHOD="none"
BROWSER_ONLY="no"
#BOOTPROTO="dhcp"
DEFROUTE="yes"
IPV4_FAILURE_FATAL="no"
IPV6INIT="yes"
IPV6_AUTOCONF="yes"
IPV6_DEFROUTE="yes"
IPV6_FAILURE_FATAL="no"
IPV6_ADDR_GEN_MODE="stable-privacy"
NAME="enp0s3"
UUID="91af51db-7cf0-4069-9433-77d356b31bca"
DEVICE="enp0s3"
ONBOOT="yes"

BOOTPROTO="none"
IPADDR="192.168.0.123"
NETMASK="255.255.255.0"
GATEWAY="192.168.0.1"
DNS1="168.126.63.1"
DNS2="168.126.63.2"