nmcliコマンド備忘録

ip alias（IPエイリアス）の追加

[root@localhost ~]# nmcli connection modify eth0 +ipv4.addresses "172.31.2.101/22"
[root@localhost ~]# systemctl restart network.service
[root@localhost ~]# ip -4 a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    inet 172.31.1.127/22 brd 172.31.3.255 scope global eth0
       valid_lft forever preferred_lft forever
    inet 172.31.2.101/22 brd 172.31.3.255 scope global secondary eth0
       valid_lft forever preferred_lft forever

削除したいときは+の部分を-にする

nmcli connection modify eth0 -ipv4.addresses "172.31.2.101/22"

resolv.confの設定

[root@localhost ~]# nmcli connection modify System\ eth0 ipv4.dns "8.8.8.8 8.8.8.4"
[root@localhost ~]# systemctl restart NetworkManager
[root@localhost ~]# cat /etc/resolv.conf
# Generated by NetworkManager
nameserver 8.8.8.8
nameserver 8.8.8.4

その他

nmcli c m enp10s0 ipv4.method manual ipv4.address 10.110.2.141/16
nmcli c m enp10s0 connection.autoconnect yes
nmcli c m enp10s0 ipv4.gateway 10.110.0.254
nmcli c m enp10s0 ipv4.dns "180.222.191.16 180.222.191.15 8.8.8.8"

IP変更
nmcli c m enp10s0 ipv4.method manual ipv4.addresses "＜IPアドレス＞/xx ＜デフォルトゲートウェイ＞"
ifup vpn_nic01

最終手段

↑上記コマンドだとIPがつかない場合、以下で行う
ifcfg vpn_nic01 add 10.10.0.15/16