[root@localhost network-scripts]# nmcli con show
NAME UUID TYPE DEVICE
Wired connection 1 be3c49bd-c8a2-36ef-a10d-4865f9913b7c ethernet ens37
[root@localhost network-scripts]# cp ifcfg-ens33 ifcfg-ens37
[root@localhost network-scripts]# ip add
3: ens37: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 00:0c:29:fc:98:6b brd ff:ff:ff:ff:ff:ff
[root@localhost network-scripts]# vim ifcfg-ens37
[root@localhost network-scripts]# cat ifcfg-ens37
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=static
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=ens37
UUID=be3c49bd-c8a2-36ef-a10d-4865f9913b7c
DEVICE=ens37
ONBOOT=yes
IPV6_PRIVACY=no
IPADDR=10.1.20.198
NETMASK=255.255.255.0
GATEWAY=10.1.20.240
HWADDR=00:0c:29:fc:98:6b
CentOS添加新网卡network-scripts目录下找不到网卡配置文件
原文：https://www.cnblogs.com/redsky666/p/13945274.html