team;

看网卡设备

[root@rhel7-0 network-scripts]# nmcli dev status

DEVICE TYPE STATE CONNECTION

ens3 ethernet connected ens3

ens6 ethernet disconnected --

ens7 ethernet disconnected --

lo loopback unmanaged --

[root@rhel7-0 ~]# nmcli device show ens3

GENERAL.DEVICE: ens3

GENERAL.TYPE: ethernet

GENERAL.HWADDR: 52:54:00:28:5D:1A

GENERAL.MTU: 1500

GENERAL.STATE: 100 (connected)

GENERAL.CONNECTION: ens3

GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/1

WIRED-PROPERTIES.CARRIER: on

IP4.ADDRESS[1]: ip = 192.168.122.179/24, gw = 192.168.122.1

IP4.DNS[1]: 192.168.122.1

IP6.ADDRESS[1]: ip = fe80::5054:ff:fe28:5d1a/64, gw = ::

看网络连接的详细信息

[root@rhel7-0 ~]# nmcli con show ens3

connection.id: ens3

connection.uuid: c078b66a-de02-4165-8026-a7b6f8fe8048

connection.interface-name: ens3

connection.type: 802-3-ethernet

connection.autoconnect: yes

创建网络连接

[root@rhel7-0 ~]# nmcli connection add con-name ens6 type ethernet ifname ens6

Connection 'ens6' (3cf83be9-7038-4061-87f9-2f58cf065240) successfully added.

[root@rhel7-0 ~]#

[root@rhel7-0 ~]# nmcli connection add con-name ens7 type ethernet ifname ens7

Connection 'ens7' (3e3776e3-fe5f-4f77-8f61-c47428eaf4d6) successfully added.

自动连接

[root@rhel7-0 ~]# nmcli connection modify ens6 connection.autoconnect no

[root@rhel7-0 ~]# nmcli connection modify ens6 connection.autoconnect yes

断开/启用连接

[root@rhel7-0 ~]# nmcli connection down ens6

[root@rhel7-0 ~]# nmcli connection show

NAME UUID TYPE DEVICE

ens7 3e3776e3-fe5f-4f77-8f61-c47428eaf4d6 802-3-ethernet ens7

ens6 3cf83be9-7038-4061-87f9-2f58cf065240 802-3-ethernet --

ens3 c078b66a-de02-4165-8026-a7b6f8fe8048 802-3-ethernet ens3

[root@rhel7-0 ~]# nmcli device status

DEVICE TYPE STATE CONNECTION

ens3 ethernet connected ens3

ens7 ethernet connected ens7

ens6 ethernet disconnected --

lo loopback unmanaged --

[root@rhel7-0 ~]# nmcli connection up ens6

Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/5)

指定DNS Server

[root@rhel7-0 ~]# nmcli connection modify ens6 ipv4.dns 8.8.8.8

[root@rhel7-0 ~]# nmcli connection show ens6 | grep -i dns

ipv4.dns: 8.8.8.8

ipv4.dns-search:

ipv4.ignore-auto-dns: no

ipv6.dns:

ipv6.dns-search:

ipv6.ignore-auto-dns: no

IP4.DNS[1]: 192.168.122.1

[root@rhel7-0 ~]# nmcli connection modify ens6 ipv4.dns 8.8.4.4

[root@rhel7-0 ~]# nmcli connection show ens6 | grep -i dns

ipv4.dns: 8.8.4.4

ipv4.dns-search:

ipv4.ignore-auto-dns: no

ipv6.dns:

ipv6.dns-search:

ipv6.ignore-auto-dns: no

IP4.DNS[1]: 192.168.122.1

[root@rhel7-0 ~]# nmcli connection modify ens6 +ipv4.dns 8.8.8.8

[root@rhel7-0 ~]# nmcli connection show ens6 | grep -i dns

ipv4.dns: 8.8.4.4, 8.8.8.8

ipv4.dns-search:

ipv4.ignore-auto-dns: no

ipv6.dns:

ipv6.dns-search:

ipv6.ignore-auto-dns: no

IP4.DNS[1]: 192.168.122.1

修改IP地址

nmcli connection modify ens6 ipv4.addresses IPAddr/prefix Gateway

[root@rhel7-0 ~]# nmcli connection modify ens6 ipv4.addresses 192.168.122.233/24 192.168.122.1

[root@rhel7-0 ~]# nmcli connection modify ens6 ipv4.method static

[root@rhel7-0 ~]# nmcli connection down ens6

[root@rhel7-0 ~]# nmcli connection up ens6

[root@rhel7-0 ~]# nmcli connection show ens6 | grep -i address

802-3-ethernet.mac-address: --

802-3-ethernet.cloned-mac-address: --

802-3-ethernet.mac-address-blacklist:

ipv4.addresses: { ip = 192.168.122.233/24, gw = 192.168.122.1 }

ipv6.addresses:

IP4.ADDRESS[1]: ip = 192.168.122.233/24, gw = 192.168.122.1

IP6.ADDRESS[1]: ip = fe80::5054:ff:fe7e:2642/64, gw = ::

nmcli命令总结

命令

作用

nmcli dev status

列出设备(状态)

nmcli con show

显示当前连接信息

nmcli con up "连接名"

启动一个连接

nmcli con down "连接名"

关闭一个连接；如果这个连接设置了autoconnect，那么关闭后这个连接会重启

nmcli dev dis 设备

关闭这个网卡设备，就算有autoconnect也不会重启

nmcli net off

关闭所有受NetworkManager管理的网卡

nmcli con add con-name ens6 type ethernet ifname ens6

增加一个连接

nmcli con mod "连接名"

修改一个连接

nmcli con del "连接名"

删除一个连接

更多信息请参考nmcli, nmcli-examples, nm-settings man pages.

TEAM

[root@rhel7-0 ~]# nmcli connection add type team con-name team0 ifname team0 config '{"runner":{"name":"roundrobin"}}'

Connection 'team0' (ea6ff298-8c4a-4b16-82bc-ba0aeb558a41) successfully added.

[root@rhel7-0 ~]# nmcli connection add type team-slave con-name team-slave0 ifname ens6 master team0

Connection 'team-slave0' (fc87d972-7b3b-491a-8f5d-6bcb66c7d85f) successfully added.

[root@rhel7-0 ~]# nmcli connection add type team-slave con-name team-slave1 ifname ens7 master team0

Connection 'team-slave1' (d9dc2e93-8239-48c7-8d84-0db28fb6c67c) successfully added.

测试team

[root@rhel7-0 ~]# nmcli con up team0

查看team状态

[root@rhel7-0 ~]# teamdctl team0 state

setup:

runner: roundrobin

ports:

ens6

link watches:

link summary: up

instance[link_watch_0]:

name: ethtool

link: up

ens7

link watches:

link summary: up

instance[link_watch_0]:

name: ethtool

link: up

尝试禁掉一个设备

[root@rhel7-0 ~]# nmcli dev dis ens6

[root@rhel7-0 ~]# teamdctl team0 state

setup:

runner: roundrobin

ports:

ens7

link watches:

link summary: up

instance[link_watch_0]:

name: ethtool

link: up

[root@rhel7-0 ~]# nmcli dev connect ens6

[root@rhel7-0 ~]# teamnl team0 ports

3: ens6: up 100Mbit FD

4: ens7: up 100Mbit FD