轉載https://blog.csdn.net/weixin_33885676/article/details/92727842
在使用RHEL和Centos7，發現網卡名稱變成了EnoX，挺不習慣。現更改回舊名稱eth0看着順眼。 1.備份/etc/sysconfig/grub文件 cp /etc/sysconfig/grub /etc/sysconfig/grub.bak 2.編輯/etc/sysconfig/grub文件 vim /etc/sysconfig/grub 在GRUB_CMDLINE_LINUX后的雙引號內添加 net.ifnames=0 biosdevname=0 順序無所謂，注意各參數間空格。 3.重建GRUB配置文件 grub2-mkconfig -o /boot/grub2/grub.cfg 4.備份網卡配置文件和更改網卡文件為eth0 cp /etc/sysconfig/network-scripts/ifcfg-ens33 /etc/sysconfig/network-scripts/ifcfg-ens33.bak mv /etc/sysconfig/network-scripts/ifcfg-ens33 /etc/sysconfig/network-scripts/ifcfg-eth0 ens33可能和各位不一樣，具體先ifconfig查看自己的ensx多少。 5.編輯/etc/sysconfig/network-scripts/ifcfg-eth0文件 vim /etc/sysconfig/network-scripts/ifcfg-eth0 把NAME和DEVICE由原來的ens33更改為eth0即可。 6.重啟系統即可。 [root@linfan ~]# ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:0c:29:7b:4d:fb brd ff:ff:ff:ff:ff:ff inet 192.168.24.148/24 brd 192.168.24.255 scope global dynamic eth0 valid_lft 1610sec preferred_lft 1610sec inet6 fe80::f395:669a:c751:9e90/64 scope link valid_lft forever preferred_lft forever Linux下把動態Ip更改為靜態Ip 我需要將ip修改為192.168.24.130 1.查看網關地址，我的是192.168.24.2 [root@linfan ~]# route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 192.168.24.2 0.0.0.0 UG 100 0 0 eth0 192.168.24.0 0.0.0.0 255.255.255.0 U 100 0 0 eth0 2.查看DNS, 我的是192.168.24.2 [root@linfan ~]# cat /etc/resolv.conf # Generated by NetworkManager search localdomain nameserver 192.168.24.2 3.配置網卡信息，我的是 vi /etc/sysconfig/network-scripts/ifcfg-eth0 TYPE="Ethernet" PROXY_METHOD="none" BROWSER_ONLY="no" BOOTPROTO="dhcp" 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="eth0" UUID="e7b272e4-cf09-46cb-8f85-ab6c9c469979" DEVICE="eth0" ONBOOT="yes" 修改后為 TYPE=Ethernet PROXY_METHOD=none BROWSER_ONLY=no BOOTPROTO="static" DEFROUTE=yes IPV4_FAILURE_FATAL=no NAME=eth0 DEVICE=eth0 ONBOOT=yes DNS1=192.168.24.2 IPADDR=192.168.24.130 NETMASK=255.255.255.0 GATEWAY=192.168.24.2 重啟網卡 [root@linfan ~]# service network restart Restarting network (via systemctl): [ OK ] 驗證： ping www.baidu.com [root@linfan ~]# ping www.baidu.com PING www.a.shifen.com (119.75.216.20) 56(84) bytes of data. 查看ip [root@linfan ~]# ifconfig eth0 eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.24.130 netmask 255.255.255.0 broadcast 192.168.24.255 inet6 fe80::f395:669a:c751:9e90 prefixlen 64 scopeid 0x20<link> ether 00:0c:29:7b:4d:fb txqueuelen 1000 (Ethernet) RX packets 3607 bytes 327107 (319.4 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 2139 bytes 304955 (297.8 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 轉載於:https://blog.51cto.com/13858192/2167037