云服务器CentOS8 Stream 网卡配置操作
CentOS8 Stream 网卡配置操作CentOS8已废弃network.service，网卡操作需要使用nmcli ，当前整理配置文件操作及相关命令
命令：nmcli
配置文件：/etc/sysconfig/network-scripts/ifcfg-eth0配置单个ipv4地址
IP:60.247.159.221 掩码：255.255.255.0 网关：60.247.159.1
# vim /etc/sysconfig/network-scripts/ifcfg-eth0
# 申明网卡eth0
DEVICE=eth0
BOOTPROTO=static
IPADDR=60.247.159.221
NETMASK=255.255.255.0
GATEWAY=60.247.159.1
TYPE=Ethernet
ONBOOT=yes配置多个ipv4地址
IP1:60.247.159.221掩码1：255.255.255.0网关1：60.247.159.152
IP2:60.247.159.221掩码2：255.255.255.0
多ip配置一般只需要配置一个GATEWAY0 网关即可
# vim /etc/sysconfig/network-scripts/ifcfg-eth0
# 申明网卡eth0
DEVICE=eth0
BOOTPROTO=static
TYPE=Ethernet
ONBOOT=yes
IPADDR0=60.247.159.221
IPADDR1=60.247.159.152
NETMASK0=255.255.255.0
NETMASK1=255.255.255.0
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GATEWAY0=60.247.159.1
几个依此添加即可，如果ip较多，一个IP段添加。
先通过http://tool.520101.com/wangluo/ipjisuan/ 计算ip地址
获取到第一个和最后一个可用ip尾数为193和254，以及掩码255.255.255.192，并注意服务器上网络连接名称，加入
for I in $(seq 193 254); do nmcli con mod eth0 +ipv4.addresses 192.168.1.${I}/26; done
单个ipv6配置
ipv4：60.247.159.221 掩码：255.255.255.0 网关：60.247.159.1
ipv6：240E:D9:C200:160:9404::1A80 掩码位数：64 网关：240e:d9:c200:160::1
# vim /etc/sysconfig/network-scripts/ifcfg-eth0
# 申明网卡eth0
DEVICE=eth0
BOOTPROTO=static
IPADDR=60.247.159.221
NETMASK=255.255.255.0
GATEWAY=60.247.159.1
TYPE=Ethernet
ONBOOT=yes
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6ADDR=240E:D9:C200:160:9404::1A80/64
IPV6_DEFAULTGW=240e:d9:c200:160::1多个ipv6配置
ipv4：60.247.159.221 掩码：255.255.255.0 网关：60.247.159.1
ipv6：240E:D9:C200:160:9404::1A80-240E:D9:C200:160:9404::1a9f 掩码位数：64 网关：240e:d9:c200:160::1
# vim /etc/sysconfig/network-scripts/ifcfg-eth0
# 申明网卡eth0
DEVICE=eth0
BOOTPROTO=static
IPADDR=60.247.159.221
NETMASK=255.255.255.0
GATEWAY=60.247.159.1
TYPE=Ethernet
ONBOOT=yes
# IPV6配置
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6ADDR=240E:D9:C200:160:9404::1A80/64
IPV6_DEFAULTGW=240e:d9:c200:160::1
# 多IPV6配置用空格分开
IPV6ADDR_SECONDARIES="240E:D9:C200:160:9404::1a80/64240E:D9:C200:160:9404::1a81/64240E:D9:C200:160:9404::1a82/64240E:D9:C200:160:9404::1a83/64240E:D9:C200:160:9404::1a84/64240E:D9:C200:160:9404::1a85/64240E:D9:C200:160:9404::1a86/64240E:D9:C200:160:9404::1a87/64240E:D9:C200:160:9404::1a88/64240E:D9:C200:160:9404::1a89/64240E:D9:C200:160:9404::1a8a/64240E:D9:C200:160:9404::1a8b/64240E:D9:C200:160:9404::1a8c/64240E:D9:C200:160:9404::1a8d/64240E:D9:C200:160:9404::1a8e/64240E:D9:C200:160:9404::1a8f/64240E:D9:C200:160:9404::1a90/64240E:D9:C200:160:9404::1a91/64240E:D9:C200:160:9404::1a92/64240E:D9:C200:160:9404::1a93/64240E:D9:C200:160:9404::1a94/64240E:D9:C200:160:9404::1a95/64240E:D9:C200:160:9404::1a96/64240E:D9:C200:160:9404::1a97/64240E:D9:C200:160:9404::1a98/64240E:D9:C200:160:9404::1a99/64240E:D9:C200:160:9404::1a9a/64240E:D9:C200:160:9404::1a9b/64240E:D9:C200:160:9404::1a9c/64240E:D9:C200:160:9404::1a9d/64240E:D9:C200:160:9404::1a9e/64240E:D9:C200:160:9404::1a9f/64"
ipv6 批量配置教程https://www.west.cn/faq/list.asp?unid=2276
以上配置后需要重启网卡生效；
网卡服务重启
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