2、nmcli命令的使用
（1）作用：地址配置工具
（2）用法：nmcli[ OPTIONS ] OBJECT{ COMMAND | help }（具体用法可以在使用时按Tab键补全）
选项：device
connection
[root@linuxidc network-scripts]#nmcli device show eth1 #查看网卡eth1的详细信息
GENERAL.DEVICE: eth1
GENERAL.TYPE: ethernet
GENERAL.HWADDR: 00:0C:29:ED:0F:1B
GENERAL.MTU: 1500
GENERAL.STATE: 100 (connected)
GENERAL.CONNECTION: Wired connection 1
GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/6
WIRED-PROPERTIES.CARRIER: on
IP4.ADDRESS[1]: 10.0.0.3/24
IP4.GATEWAY: 10.0.0.2
IP4.DNS[1]: 10.0.0.2
IP4.DOMAIN[1]: localdomain
（3）通过nmcli修改网卡配置文件名称
[root@linuxidc network-scripts]#nmcli connection show #查看当前系统有多少套配置文件
NAME UUID TYPE DEVICE
virbr0 084f00d4-652e-44c8-83b7-70b469f89f31 bridge virbr0
eth0 d50e8c71-6416-4ab6-97ca-ad2002cd3353 802-3-ethernet eth0
Wired connection 1 370c3d11-868f-4efc-95bc-630169b62ef1 802-3-ethernet eth1
[root@linuxidc network-scripts]#nmcli connection modify Wired\ connection\ 1 connection.id eth1 #修改网卡配置文件名称
[root@linuxidc network-scripts]#nmcli connection show #查看修改后的名称
NAME UUID TYPE DEVICE
virbr0 084f00d4-652e-44c8-83b7-70b469f89f31 bridge virbr0
eth0 d50e8c71-6416-4ab6-97ca-ad2002cd3353 802-3-ethernet eth0
eth1 370c3d11-868f-4efc-95bc-630169b62ef1 802-3-ethernet eth1
（4）通过nmcli命令为网卡在不同的环境创建不同的配置文件
1）创建网卡配置文件
[root@linuxidc network-scripts]#nmcli connection add ifname eth1 type ethernet con-name eth1-home ip4192.168.1.2/24 gw4 192.168.1.1 #通过命令创建一份网卡配置文件
Connection 'eth1-home'(4e73fce1-800e-420d-902f-48b19c8dfc07) successfully added.
[root@linuxidc network-scripts]#nmcli connection show
……
eth1-home 4e73fce1-800e-420d-902f-48b19c8dfc07 802-3-ethernet --
[root@linuxidc network-scripts]#cp ifcfg-eth1-home ifcfg-eth1-office #通过复制创建网卡配置
[root@linuxidc network-scripts]#nmcli connection reload #加载复制的网卡配置
[root@linuxidc network-scripts]#nmcli connection show #查看生效后的配置
……
eth1-office 1bbd1be4-e93e-4b29-0ced-eaffbef36326 802-3-ethernet --
eth1-home 4e73fce1-800e-420d-902f-48b19c8dfc07 802-3-ethernet --
2）使创建的网卡配置文件生效
[root@linuxidc network-scripts]#nmcli connection up eth1-home #使配置eth1-home生效
Connection successfully activated(D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/9)
[root@linuxidc network-scripts]#nmcli connection show #查看当前生效的配置
NAME UUID TYPE DEVICE
…….
eth1-home 4e73fce1-800e-420d-902f-48b19c8dfc07 802-3-ethernet eth1
[root@linuxidc network-scripts]#ifconfig eth1 #查看eth1的IP地址
eth1:flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.2 netmask 255.255.255.0 broadcast 192.168.1.255
[root@linuxidc network-scripts]#nmcli device status #查看设备的状态
DEVICE TYPE STATE CONNECTION
virbr0 bridge connected virbr0
eth0 ethernet connected eth0
eth1 ethernet connected eth1-home
lo loopback unmanaged --
virbr0-nic tap unmanaged --
3）删除网卡配置文件
[root@linuxidc network-scripts]#nmcli connection delete eth1-home
Connection 'eth1-home'(4e73fce1-800e-420d-902f-48b19c8dfc07) successfully deleted.
[root@linuxidc network-scripts]#nmcli connection show #查看删除后可用的配置文件
（4）通过nmcli网络设置
1）用法：nmcliconnection modify IFACE[+|-]setting.propertyvalue
2）常用参数
Nmcli 修改参数
对应网卡配置文件选项
ipv4.method manual
BOOTPROTO=none
ipv4.method auto
BOOTPROTO=dhcp
ipv4.addresses “192.0.2.1/24 192.0.2.254”
IPADDR0=192.0.2.1
PREFIX0=24
GATEWAY0=192.0.2.254
ipv4.dns 8.8.8.8
DNS0=8.8.8.8
ipv4.dns-search example.com
DOMAIN=example.com
ipv4.ignore-auto-dns true
PEERDNS=no
connection.autoconnectyes
ONBOOT=yes
connection.id eth0
NAME=eth0
connection.interface-name eth0
DEVICE=eth0
802-3-ethernet.mac-address . . .
HWADDR= . . .
#将网卡配置文件中的ONBOOT设置为no
[root@linuxidc network-scripts]# nmcliconnection modify eth1-home connection.autoconnect no
#设置dns
[root@linuxidc network-scripts]#nmcli connection modify eth1-home ipv4.dns 114.114.114.114
#为网卡再添加一个IP地址
[root@linuxidc network-scripts]#nmcli connection modify eth1-home +ipv4.addresses 192.168.1.100/24
[root@linuxidc network-scripts]#cat ifcfg-eth1-home | grep -E "IPADDR|DNS"
DNS1=114.114.114.114
IPADDR=192.168.1.2
IPADDR1=192.168.1.100
[root@linuxidc network-scripts]#nmcli connection modify eth1-home -ipv4.addresses 192.168.1.100/24 #删除设置的一个IP地址
3、通过nmcli命令实现bonding
（1）添加bonding接口
[root@linuxidc network-scripts]#nmcli connection add type bond con-name bond0 ifname bond0 mode active-backup #创建bonding接口，模式为主从模式
Connection 'bond0'(da41db3d-b705-4eca-8e0a-06e7c59a95eb) successfully added.
[root@linuxidc network-scripts]#nmcli connection show
……
bond0 da41db3d-b705-4eca-8e0a-06e7c59a95eb bond bond0
（2）为bonding接口添加从属接口
[root@linuxidc network-scripts]#nmcli connection add type bond-slave ifname eth0 master bond0 #将eth0接口添加到bond0的从属接口，添加后会生成新的配置文件bond-slave-eth0
Connection 'bond-slave-eth0'(681e4abb-f538-4756-b0bd-cd5a51eb0cf6) successfully added.
[root@linuxidc network-scripts]#nmcli connection add type bond-slave ifname eth1 master bond0 #将eth1接口添加到bond0的从属接口，添加后会生成新的配置文件bond-slave-eth1
Connection 'bond-slave-eth1'(0a1708cc-e9fc-48d6-b6c2-6349b14d06e0) successfully added.
（3）启动绑定
[root@linuxidc network-scripts]#nmcli connection up bond-slave-eth0 #启动绑定从属接口0
Connection successfully activated(D-Bus active path: /org/freedesktop/NetworkManager/Active
Connection/13)
[root@linuxidc network-scripts]#nmcli connection up bond-slave-eth1 #启动绑定从属接口1
Connection successfully activated(D-Bus active path: /org/freedesktop/NetworkManager/Active
Connection/14)
[root@linuxidc network-scripts]#nmcli connection up bond0 #启动绑定
Connection successfully activated(master waiting for slaves) (D-Bus active path: /org/freedesktop/
NetworkManager/ActiveConnection/15)
（4）查看bonding状态及信息
[root@linuxidc network-scripts]#cat /proc/net/bonding/bond0
Ethernet Channel Bonding Driver:v3.7.1 (April 27, 2011)
Bonding Mode: fault-tolerance(active-backup)
Primary Slave: None
Currently Active Slave: eth0
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
……
（5）修改bongding的工作模式
[root@linuxidc network-scripts]#cat ifcfg-bond0
…….
BONDING_OPTS=mode=broadcast #将主从模式修改广播模式
……
[root@linuxidc network-scripts]#nmcli connection up bond0 #使修改后的配置生效
Connection successfully activated(master waiting for slaves) (D-Bus active path:/org/freedesktop/NetworkManager/ActiveConnection/18)
[root@linuxidc network-scripts]#cat /proc/net/bonding/bond0 #查看状态
Ethernet Channel Bonding Driver:v3.7.1 (April 27, 2011)
Bonding Mode: fault-tolerance(broadcast)
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
（6）删除bonding
[root@linuxidc network-scripts]#nmcli connection delete bond0 #删除bonding配置文件
[root@linuxidc ~]# nmcliconnection delete bond-slave-eth0 #删除bonding从属接口配置文件
[root@linuxidc ~]# nmcliconnection delete bond-slave-eth1