nmcli命令
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格式：
nmcli [OPTIONS...] {help | general | networking | radio | connection | device | agent | monitor} [COMMAND] [ARGUMENTS...]- device：查看并管理网络接口
COMMAND := { status | show | connect | disconnect | delete |wifi | wimax }
[root@node1 network-scripts]# nmcli device status DEVICE TYPE STATE CONNECTION ens37 ethernet connected Wired connection 1 ens33 ethernet connected ens33 virbr0 bridge connected virbr0 lo loopback unmanaged -- virbr0-nic tun unmanaged -- [root@node1 network-scripts]# nmcli device show GENERAL.DEVICE: ens37 GENERAL.TYPE: ethernet GENERAL.HWADDR: 00:0C:29:0E:AF:8A GENERAL.MTU: 1500 GENERAL.STATE: 100 (connected) GENERAL.CONNECTION: Wired connection 1 GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/4 WIRED-PROPERTIES.CARRIER: on IP4.ADDRESS[1]: 192.168.1.115/24 IP4.ADDRESS[2]: 192.168.1.115/8 IP4.GATEWAY: 192.168.1.1 IP4.ROUTE[1]: dst = 0.0.0.0/0, nh = 192.168.1.1, mt = 101 IP4.ROUTE[2]: dst = 192.168.1.0/24, nh = 0.0.0.0, mt = 101 IP4.ROUTE[3]: dst = 192.0.0.0/8, nh = 0.0.0.0, mt = 101 IP4.DNS[1]: 192.168.1.1 IP6.GATEWAY: -- IP6.ROUTE[1]: dst = fe80::/64, nh = ::, mt = 101 IP6.ROUTE[2]: dst = ff00::/8, nh = ::, mt = 256, table=255 ...- connection：启动、停止和管理网络连接
COMMAND := { show | up | down | add | edit | modify | delete | reload | load }
[root@node1 network-scripts]# nmcli connection show NAME UUID TYPE DEVICE ens33 fac256e3-e571-4ef0-9770-d8c208eaeabf ethernet ens33 ens37 4a5516a4-dfa4-24af-b1c4-e843e312e2fd ethernet ens37 virbr0 849d7516-1749-4cda-9ce5-da8924a6a220 bridge virbr0 Wired connection 1 1cd19407-0ba6-34c4-a819-d9495b44ee1c ethernet -- [root@node1 network-scripts]# nmcli connection down ens37 Connection 'ens37' successfully deactivated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/10) [root@node1 network-scripts]# nmcli connection show NAME UUID TYPE DEVICE ens33 fac256e3-e571-4ef0-9770-d8c208eaeabf ethernet ens33 virbr0 849d7516-1749-4cda-9ce5-da8924a6a220 bridge virbr0 ens37 4a5516a4-dfa4-24af-b1c4-e843e312e2fd ethernet -- Wired connection 1 1cd19407-0ba6-34c4-a819-d9495b44ee1c ethernet -- [root@node1 network-scripts]# nmcli connection up ens37 Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/11) [root@node1 network-scripts]# nmcli connection show NAME UUID TYPE DEVICE ens33 fac256e3-e571-4ef0-9770-d8c208eaeabf ethernet ens33 ens37 4a5516a4-dfa4-24af-b1c4-e843e312e2fd ethernet ens37 virbr0 849d7516-1749-4cda-9ce5-da8924a6a220 bridge virbr0 Wired connection 1 1cd19407-0ba6-34c4-a819-d9495b44ee1c ethernet -- [root@node1 network-scripts]# nmcli connection add con-name eth0 ipv4.addresses 1.1.1.1 ipv4.method manual type ethernet ifname ens37 Connection 'eth0' (7fe1a2f8-27ca-4451-904f-cbdadcaf9215) successfully added. [root@node1 network-scripts]# nmcli connection show NAME UUID TYPE DEVICE ens33 fac256e3-e571-4ef0-9770-d8c208eaeabf ethernet ens33 ens37 4a5516a4-dfa4-24af-b1c4-e843e312e2fd ethernet ens37 virbr0 849d7516-1749-4cda-9ce5-da8924a6a220 bridge virbr0 eth0 7fe1a2f8-27ca-4451-904f-cbdadcaf9215 ethernet -- Wired connection 1 1cd19407-0ba6-34c4-a819-d9495b44ee1c ethernet -- [root@node1 network-scripts]# nmcli connection delete eth0 Connection 'eth0' (7fe1a2f8-27ca-4451-904f-cbdadcaf9215) successfully deleted. [root@node1 network-scripts]# nmcli connection show NAME UUID TYPE DEVICE ens33 fac256e3-e571-4ef0-9770-d8c208eaeabf ethernet ens33 ens37 4a5516a4-dfa4-24af-b1c4-e843e312e2fd ethernet ens37 virbr0 849d7516-1749-4cda-9ce5-da8924a6a220 bridge virbr0 Wired connection 1 1cd19407-0ba6-34c4-a819-d9495b44ee1c ethernet -- - device：查看并管理网络接口
modify [ id | uuid | path ] <ID> [+|-]<setting>.<property><value>
如何修改IP地址等属性：
[root@node1 ~]# nmcli connection modify IFACE [+|-]setting.property value
ipv4.address
ipv4.gateway
ipv4.dns1
ipv3.method
