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