在各大Linux的最新发行版中(Centos 8版本以上),废弃了network服务以及/etc/sysconfig/network-scripts进行管理地址的方式。
在Centos8版本及以上发行版中,可以使用以下两种方式设置IP地址。
IP地址修改
修改配置文件
网卡配置文件位于以下路径:
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vi /etc/NetworkManager/system-connections/ens160.nmconnection |
配置方式如下:
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[connection] id=ens160 uuid=17951fcc-b2e6-3fad-bd25-ab226763637f type=ethernet autoconnect-priority=-999 interface-name=ens160 timestamp=1677439993 [ethernet] [ipv4] method=manual #manual为手工 auto为自动获取 disabled为禁用 address1=192.168.3.41/24,192.168.3.1 dns=114.114.114.114;8.8.8.8 [ipv6] addr-gen-mode=eui64 method=disabled [proxy] |
使地址生效
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nmcli c reload # 重启生效 nmcli con down ens160 && nmcli con up ens160 |
使用命令设置静态地址
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# 设置网卡自启动 nmcli con mod ens160 connection.autoconnect yes # 设置IP地址 nmcli con mod ens160 ipv4.address "192.168.3.41/24" # 设置网关地址 nmcli con mod ens160 ipv4.gateway "192.168.3.1" # 设置dns nmcli con mod ens160 ipv4.dns 114.114.114.114 # 添加dns nmcli con mod ens160 +ipv4.dns 8.8.8.8 # 修改IP地址是静态(manual)还是dhcp动态(auto) disabled为禁用 nmcli con mod ens160 ipv4.method manual # 重启生效 nmcli con down ens160 && nmcli con up ens160 |
更改网卡名称
在使用Linux的过程中会遇到修改网卡名称的情况,方式如下 :
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# 将网卡名称为dhcp的网卡,修改名称为ens160 nmcli con modify dhcp.id ens160 # 重新载入网卡,使网卡生效 nmcli c reload # 重启 nmcli con down ens160 && nmcli con up ens160 |
查看网卡名称
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[root@k8s-master ~]# nmcli con show NAME UUID TYPE DEVICE ens160 e375725e-fdbe-48b1-9c2c-64358d92c16f ethernet ens160 |
查看网卡信息
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[root@k8s-master ~]# nmcli con show ens160 connection.id: ens160 connection.uuid: e375725e-fdbe-48b1-9c2c-64358d92c16f connection.stable-id: -- connection.type: 802-3-ethernet connection.interface-name: ens160 connection.autoconnect: 是 connection.autoconnect-priority: 0 connection.autoconnect-retries: -1 (default) connection.multi-connect: 0(default) connection.auth-retries: -1 connection.timestamp: 1677419863 connection.read-only: 否 connection.permissions: -- connection.zone: -- connection.master: -- connection.slave-type: -- connection.autoconnect-slaves: -1(default) connection.secondaries: -- connection.gateway-ping-timeout: 0 connection.metered: 未知 connection.lldp: default connection.mdns: -1(default) connection.llmnr: -1(default) connection.dns-over-tls: -1(default) connection.mptcp-flags: 0x0(default) connection.wait-device-timeout: -1 connection.wait-activation-delay: -1 802-3-ethernet.port: -- 802-3-ethernet.speed: 0 802-3-ethernet.duplex: -- 802-3-ethernet.auto-negotiate: 否 802-3-ethernet.mac-address: -- 802-3-ethernet.cloned-mac-address: -- 802-3-ethernet.generate-mac-address-mask:-- 802-3-ethernet.mac-address-blacklist: -- 802-3-ethernet.mtu: 自动 802-3-ethernet.s390-subchannels: -- 802-3-ethernet.s390-nettype: -- 802-3-ethernet.s390-options: -- 802-3-ethernet.wake-on-lan: default 802-3-ethernet.wake-on-lan-password: -- 802-3-ethernet.accept-all-mac-addresses:-1(default) ipv4.method: manual ipv4.dns: 114.114.114.114,8.8.8.8 ipv4.dns-search: -- ipv4.dns-options: -- ipv4.dns-priority: 0 ipv4.addresses: 192.168.3.41/24 ipv4.gateway: 192.168.3.1 ipv4.routes: -- ipv4.route-metric: -1 ipv4.route-table: 0 (unspec) ipv4.routing-rules: -- ipv4.ignore-auto-routes: 否 ipv4.ignore-auto-dns: 否 ipv4.dhcp-client-id: -- ipv4.dhcp-iaid: -- ipv4.dhcp-timeout: 0 (default) ipv4.dhcp-send-hostname: 是 ipv4.dhcp-hostname: -- ipv4.dhcp-fqdn: -- ipv4.dhcp-hostname-flags: 0x0(none) ipv4.never-default: 否 ipv4.may-fail: 是 ipv4.required-timeout: -1 (default) ipv4.dad-timeout: -1 (default) ipv4.dhcp-vendor-class-identifier: -- ipv4.link-local: 0(default) ipv4.dhcp-reject-servers: -- ipv6.method: disabled ipv6.dns: -- ipv6.dns-search: -- ipv6.dns-options: -- ipv6.dns-priority: 0 ipv6.addresses: -- ipv6.gateway: -- ipv6.routes: -- ipv6.route-metric: -1 ipv6.route-table: 0 (unspec) ipv6.routing-rules: -- ipv6.ignore-auto-routes: 否 ipv6.ignore-auto-dns: 否 ipv6.never-default: 否 ipv6.may-fail: 是 ipv6.required-timeout: -1 (default) ipv6.ip6-privacy: -1(unknown) ipv6.addr-gen-mode: default ipv6.ra-timeout: 0 (default) ipv6.mtu: 自动 ipv6.dhcp-duid: -- ipv6.dhcp-iaid: -- ipv6.dhcp-timeout: 0 (default) ipv6.dhcp-send-hostname: 是 ipv6.dhcp-hostname: -- ipv6.dhcp-hostname-flags: 0x0(none) ipv6.token: -- proxy.method: none proxy.browser-only: 否 proxy.pac-url: -- proxy.pac-script: -- GENERAL.NAME: ens160 GENERAL.UUID: e375725e-fdbe-48b1-9c2c-64358d92c16f GENERAL.DEVICES: ens160 GENERAL.IP-IFACE: ens160 GENERAL.STATE: 已激活 GENERAL.DEFAULT: 是 GENERAL.DEFAULT6: 是 GENERAL.SPEC-OBJECT: -- GENERAL.VPN: 否 GENERAL.DBUS-PATH: /org/freedesktop/NetworkManager/ActiveConnection/4 GENERAL.CON-PATH: /org/freedesktop/NetworkManager/Settings/3 GENERAL.ZONE: -- GENERAL.MASTER-PATH: -- IP4.ADDRESS[1]: 192.168.3.41/24 IP4.GATEWAY: 192.168.3.1 IP4.ROUTE[1]: dst = 192.168.3.0/24, nh = 0.0.0.0, mt = 100 IP4.ROUTE[2]: dst = 0.0.0.0/0, nh = 192.168.3.1, mt = 100 IP4.DNS[1]: 114.114.114.114 IP4.DNS[2]: 8.8.8.8 IP6.ADDRESS[1]: 2408:8215:4b3e:3f80:e020:dcc1:32b5:5b3/64 IP6.ADDRESS[2]: fe80::63d2:6af6:8bb2:cf94/64 IP6.GATEWAY: fe80::2ea0:42ff:fe20:e61f IP6.ROUTE[1]: dst = 2408:8215:4b3e:3f80:2ca0:4220:e61f:8/128, nh = ::, mt = 100 IP6.ROUTE[2]: dst = 2408:8215:4b3e:3f80::/64, nh = ::, mt = 100 IP6.ROUTE[3]: dst = fe80::/64, nh = ::, mt = 1024 IP6.ROUTE[4]: dst = ::/0, nh = fe80::2ea0:42ff:fe20:e61f, mt = 100 IP6.DNS[1]: fe80::2ea0:42ff:fe20:e61f DHCP6.OPTION[1]: dhcp6_name_servers = fe80::2ea0:42ff:fe20:e61f DHCP6.OPTION[2]: ip6_address = 2408:8215:4b3e:3f80:2ca0:4220:e61f:8 |