linux7系統如何配置網卡,Linux 7 配置網卡(nmcli)

操作系統版本：

[root@cjcos01?network-scripts]#?cat?/etc/redhat-release

Red?Hat?Enterprise?Linux?Server?release?7.5?(Maipo)

查看網卡、IP等信息：

[root@cjcos01?~]#?ifconfig

enp0s3:?flags=4163??mtu?1500

inet?192.168.1.90??netmask?255.255.255.0??broadcast?192.168.1.255

inet6?fe80::e07:b869:9f7b:792a??prefixlen?64??scopeid?0x20

ether?08:00:27:bc:de:5e??txqueuelen?1000??(Ethernet)

RX?packets?929??bytes?1120691?(1.0?MiB)

RX?errors?0??dropped?0??overruns?0??frame?0

TX?packets?759??bytes?68662?(67.0?KiB)

TX?errors?0??dropped?0?overruns?0??carrier?0??collisions?0

enp0s8:?flags=4163??mtu?1500

ether?08:00:27:93:03:0a??txqueuelen?1000??(Ethernet)

RX?packets?0??bytes?0?(0.0?B)

RX?errors?0??dropped?0??overruns?0??frame?0

TX?packets?0??bytes?0?(0.0?B)

TX?errors?0??dropped?0?overruns?0??carrier?0??collisions?0

enp0s9:?flags=4163??mtu?1500

ether?08:00:27:de:7f:38??txqueuelen?1000??(Ethernet)

RX?packets?0??bytes?0?(0.0?B)

RX?errors?0??dropped?0??overruns?0??frame?0

TX?packets?0??bytes?0?(0.0?B)

TX?errors?0??dropped?0?overruns?0??carrier?0??collisions?0

enp0s10:?flags=4163??mtu?1500

ether?08:00:27:56:39:b6??txqueuelen?1000??(Ethernet)

RX?packets?0??bytes?0?(0.0?B)

RX?errors?0??dropped?0??overruns?0??frame?0

TX?packets?0??bytes?0?(0.0?B)

TX?errors?0??dropped?0?overruns?0??carrier?0??collisions?0

lo:?flags=73??mtu?65536

inet?127.0.0.1??netmask?255.0.0.0

inet6?::1??prefixlen?128??scopeid?0x10

loop??txqueuelen?0??(Local?Loopback)

RX?packets?166??bytes?17894?(17.4?KiB)

RX?errors?0??dropped?0??overruns?0??frame?0

TX?packets?166??bytes?17894?(17.4?KiB)

TX?errors?0??dropped?0?overruns?0??carrier?0??collisions?0

virbr0:?flags=4099??mtu?1500

inet?192.168.122.1??netmask?255.255.255.0??broadcast?192.168.122.255

ether?52:54:00:45:70:b3??txqueuelen?0??(Ethernet)

RX?packets?0??bytes?0?(0.0?B)

RX?errors?0??dropped?0??overruns?0??frame?0

TX?packets?0??bytes?0?(0.0?B)

TX?errors?0??dropped?0?overruns?0??carrier?0??collisions?0

查看配置信息

[root@cjcos01?network-scripts]#?ls?-l?ifcfg-*

-rw-r--r--??1?root?root?472?Sep?16?10:23?ifcfg-enp0s3

-rw-r--r--.?1?root?root?254?Jan??3??2018?ifcfg-lo

查看nmcli命令

[root@cjcos01?network-scripts]#?man?-k?nmcli

nmcli?(1)????????????-?command-line?tool?for?controlling?NetworkManager

nmcli-examples?(7)???-?usage?examples?of?nmcli

[root@cjcos01?network-scripts]#?man?nmcli?7

CONNECTION?MANAGEMENT?COMMANDS

nmcli?connection?{show?|?up?|?down?|?modify?|?add?|?edit?|?clone?|?delete?|?monitor?|?reload?|?load?|?import?|

export}?[ARGUMENTS...]

添加網卡

[root@cjcos01?network-scripts]#?nmcli?connection?add?con-name?enp0s8?type?ethernet?ifname?enp0s8?ipv4.method?manual?ipv4.addresses?192.100.100.10/24?connection.autoconnect?yes

Connection?'enp0s8'?(f81306db-bac5-4b2c-ac52-b42c0ca52621)?successfully?added.

[root@cjcos01?network-scripts]#?nmcli?connection?add?con-name?enp0s9?type?ethernet?ifname?enp0s9?ipv4.method?manual?ipv4.addresses?192.100.100.20/24?connection.autoconnect?yes

Connection?'enp0s9'?(587e0d6b-c4af-4273-9c48-bd2f66fbbc84)?successfully?added.

查看網卡配置

[root@cjcos01?network-scripts]#?cat?ifcfg-enp0s8

TYPE=Ethernet

PROXY_METHOD=none

BROWSER_ONLY=no

BOOTPROTO=none

IPADDR=192.100.100.10

PREFIX=24

DEFROUTE=yes

IPV4_FAILURE_FATAL=no

IPV6INIT=yes

IPV6_AUTOCONF=yes

IPV6_DEFROUTE=yes

IPV6_FAILURE_FATAL=no

IPV6_ADDR_GEN_MODE=stable-privacy

NAME=enp0s8

UUID=f81306db-bac5-4b2c-ac52-b42c0ca52621

DEVICE=enp0s8

ONBOOT=yes

[root@cjcos01?network-scripts]#?cat?ifcfg-enp0s9

TYPE=Ethernet

PROXY_METHOD=none

BROWSER_ONLY=no

BOOTPROTO=none

IPADDR=192.100.100.20

PREFIX=24

DEFROUTE=yes

IPV4_FAILURE_FATAL=no

IPV6INIT=yes

IPV6_AUTOCONF=yes

IPV6_DEFROUTE=yes

IPV6_FAILURE_FATAL=no

IPV6_ADDR_GEN_MODE=stable-privacy

NAME=enp0s9

UUID=587e0d6b-c4af-4273-9c48-bd2f66fbbc84

DEVICE=enp0s9

ONBOOT=yes

查看網卡信息

[root@cjcos01?network-scripts]#?nmcli?connection?show

NAME????UUID??????????????????????????????????TYPE??????DEVICE

enp0s3??b0b58151-2738-4a9b-8e49-30341e577a60??ethernet??enp0s3

enp0s8??f81306db-bac5-4b2c-ac52-b42c0ca52621??ethernet??enp0s8

enp0s9??587e0d6b-c4af-4273-9c48-bd2f66fbbc84??ethernet??enp0s9

virbr0??c6b6e6fd-1b38-4493-865c-317c16360e46??bridge????virbr0

刪除網卡

[root@cjcos01?network-scripts]#?nmcli?connection?delete?enp0s8

Connection?'enp0s8'?(2eec6955-a3dd-4909-9cfc-89f06c2a9aca)?successfully?deleted.

Connection?'enp0s8'?(972fecaa-7123-45de-8248-dd77912606a2)?successfully?deleted.

Connection?'enp0s8'?(7916c63a-2c4e-46a5-8dd6-1d752f694825)?successfully?deleted.

網卡綁定

[root@cjcos01?network-scripts]#?nmcli?connection?add?type?bond?ifname?bond0?mode?1?ip4?192.100.100.30/24?ipv4.gateway?192.100.100.254

Connection?'bond-bond0'?(80418cf9-d103-4bc3-a5b8-17783a5dd4c5)?successfully?added.

[root@cjcos01?network-scripts]#?nmcli?connection?add?type?bond-slave?ifname?enp0s8?master?bond0

Connection?'bond-slave-enp0s8'?(9a848655-4f43-423e-b63e-0c382406a208)?successfully?added.

[root@cjcos01?network-scripts]#?nmcli?connection?add?type?bond-slave?ifname?enp0s9?master?bond0

Connection?'bond-slave-enp0s9'?(df987cba-99bf-444f-a060-e096291a9d3c)?successfully?added.

查看信息

[root@cjcos01?network-scripts]#?nmcli?connection?show

NAME???????????????UUID??????????????????????????????????TYPE??????DEVICE

bond-bond0?????????80418cf9-d103-4bc3-a5b8-17783a5dd4c5??bond??????bond0

enp0s3?????????????b0b58151-2738-4a9b-8e49-30341e577a60??ethernet??enp0s3

enp0s8?????????????f81306db-bac5-4b2c-ac52-b42c0ca52621??ethernet??enp0s8

enp0s9?????????????587e0d6b-c4af-4273-9c48-bd2f66fbbc84??ethernet??enp0s9

virbr0?????????????c6b6e6fd-1b38-4493-865c-317c16360e46??bridge????virbr0

bond-slave-enp0s8??9a848655-4f43-423e-b63e-0c382406a208??ethernet??--

bond-slave-enp0s9??df987cba-99bf-444f-a060-e096291a9d3c??ethernet??--

[root@cjcos01?network-scripts]#?cat?ifcfg-bond-bond0

BONDING_OPTS=mode=active-backup

TYPE=Bond

BONDING_MASTER=yes

PROXY_METHOD=none

BROWSER_ONLY=no

BOOTPROTO=none

IPADDR=192.100.100.30

PREFIX=24

GATEWAY=192.100.100.254

DEFROUTE=yes

IPV4_FAILURE_FATAL=no

IPV6INIT=yes

IPV6_AUTOCONF=yes

IPV6_DEFROUTE=yes

IPV6_FAILURE_FATAL=no

IPV6_ADDR_GEN_MODE=stable-privacy

NAME=bond-bond0

UUID=80418cf9-d103-4bc3-a5b8-17783a5dd4c5

DEVICE=bond0

ONBOOT=yes

[root@cjcos01?network-scripts]#?cat?ifcfg-bond-slave-enp0s8

TYPE=Ethernet

NAME=bond-slave-enp0s8

UUID=9a848655-4f43-423e-b63e-0c382406a208

DEVICE=enp0s8

ONBOOT=yes

MASTER=bond0

SLAVE=yes

[root@cjcos01?network-scripts]#?cat?ifcfg-bond-slave-enp0s9

TYPE=Ethernet

NAME=bond-slave-enp0s9

UUID=df987cba-99bf-444f-a060-e096291a9d3c

DEVICE=enp0s9

ONBOOT=yes

MASTER=bond0

SLAVE=yes

查看網卡綁定信息

[root@cjcos01?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:?None

MII?Status:?down

MII?Polling?Interval?(ms):?100

Up?Delay?(ms):?0

Down?Delay?(ms):?0

啟動網卡

[root@cjcos01?network-scripts]#?nmcli?connection?up?bond-bond0

[root@cjcos01?network-scripts]#?nmcli?connection?up?bond-slave-enp0s8

[root@cjcos01?network-scripts]#?nmcli?connection?up?bond-slave-enp0s9

查看網卡綁定狀態

[root@cjcos01?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:?enp0s8

MII?Status:?up

MII?Polling?Interval?(ms):?100

Up?Delay?(ms):?0

Down?Delay?(ms):?0

Slave?Interface:?enp0s8

MII?Status:?up

Speed:?1000?Mbps

Duplex:?full

Link?Failure?Count:?0

Permanent?HW?addr:?08:00:27:93:03:0a

Slave?queue?ID:?0

Slave?Interface:?enp0s9

MII?Status:?up

Speed:?1000?Mbps

Duplex:?full

Link?Failure?Count:?0

Permanent?HW?addr:?08:00:27:de:7f:38

Slave?queue?ID:?0

刪除網卡綁定