注：本文来源：张亮博客 的 《centos 7.3 设置静态IP或ping 报name or service not known》
首先把虚拟机配置为桥接模式，然后开启
再你打算修改虚拟机IP之前首先ping下127.0.0.1看看网卡是否是好的（如果127.0.0.1都ping不通的话，那网卡就是坏的了…）
View Code1 [root@localhost /]# ping 127.0.0.1 2 PING 127.0.0.1 (127.0.0.1) 56(84) bytes of data. 3 64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.106 ms 4 64 bytes from 127.0.0.1: icmp_seq=2 ttl=64 time=0.095 ms 5 64 bytes from 127.0.0.1: icmp_seq=3 ttl=64 time=0.097 ms 6 64 bytes from 127.0.0.1: icmp_seq=4 ttl=64 time=0.073 ms 7 64 bytes from 127.0.0.1: icmp_seq=5 ttl=64 time=0.058 ms 8 64 bytes from 127.0.0.1: icmp_seq=6 ttl=64 time=0.097 ms 9 64 bytes from 127.0.0.1: icmp_seq=7 ttl=64 time=0.375 ms 10 ^C64 bytes from 127.0.0.1: icmp_seq=8 ttl=64 time=0.733 ms 11 64 bytes from 127.0.0.1: icmp_seq=9 ttl=64 time=0.095 ms 12 64 bytes from 127.0.0.1: icmp_seq=10 ttl=64 time=0.102 ms 13 ^C 14 --- 127.0.0.1 ping statistics --- 15 10 packets transmitted, 10 received, 0% packet loss, time 9006ms 16 rtt min/avg/max/mdev = 0.058/0.183/0.733/0.202 ms 17 [root@localhost /]#
在设置静态IP之前可以先看下自己当前开启的网卡：
1 [root@localhost /]# ifconfig 2 ens32: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 3 inet 192.168.0.121 netmask 255.255.255.0 broadcast 192.168.0.255 4 inet6 fe80::9474:4a7c:66fd:8d90 prefixlen 64 scopeid 0x20<link> 5 ether 00:0c:29:e5:c1:96 txqueuelen 1000 (Ethernet) 6 RX packets 4436 bytes 372786 (364.0 KiB) 7 RX errors 0 dropped 0 overruns 0 frame 0 8 TX packets 871 bytes 147085 (143.6 KiB) 9 TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 10 11 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 12 inet 127.0.0.1 netmask 255.0.0.0 13 inet6 ::1 prefixlen 128 scopeid 0x10<host> 14 loop txqueuelen 1 (Local Loopback) 15 RX packets 16 bytes 1320 (1.2 KiB) 16 RX errors 0 dropped 0 overruns 0 frame 0 17 TX packets 16 bytes 1320 (1.2 KiB) 18 TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 19 20 [root@localhost /]#
1.设置网卡ens32静态IP
1 [root@localhost /]# cd /etc/sysconfig/network-scripts/ #注意点cd与“/etc”之间的空格 2 [root@localhost network-scripts]# 3 [root@localhost network-scripts]# ls #查看network-scripts下的所有文件 4 ifcfg-ens32 ifdown-eth ifdown-isdn ifdown-sit ifup ifup-ib ifup-plip ifup-routes ifup-tunnel network-functions-ipv6 5 ifcfg-lo ifdown-ib ifdown-post ifdown-Team ifup-aliases ifup-ippp ifup-plusb ifup-sit ifup-wireless 6 ifdown ifdown-ippp ifdown-ppp ifdown-TeamPort ifup-bnep ifup-ipv6 ifup-post ifup-Team init.ipv6-global 7 ifdown-bnep ifdown-ipv6 ifdown-routes ifdown-tunnel ifup-eth ifup-isdn ifup-ppp ifup-TeamPort network-functions 8 [root@localhost network-scripts]# 9 10 11 使用vi进行编辑 12 [root@localhost network-scripts]# vi ifcfg-ens32 13 【点击i 进行插入 完成之后Esc 并输入:wq 进行保存】 14 [root@localhost network-scripts]# vi ifcfg-ens32 15 TYPE="Ethernet" 16 BOOTPROTO="static" #启用静态IP地址 17 DEFROUTE="yes" 18 PEERDNS="yes" 19 PEERROUTES="yes" 20 IPV4_FAILURE_FATAL="no" 21 IPV6INIT="yes" 22 IPV6_AUTOCONF="yes" 23 IPV6_DEFROUTE="yes" 24 IPV6_PEERDNS="yes" 25 IPV6_PEERROUTES="yes" 26 IPV6_FAILURE_FATAL="no" 27 IPV6_ADDR_GEN_MODE="stable-privacy" 28 NAME="ens32" 29 UUID="17e371b3-5107-4d72-a58f-e8f71396fd68" 30 DEVICE="ens32" 31 ONBOOT="yes" 32 IPADDR=“192.168.0.121” 33 GATEWAY=“192.168.0.1” 34 35 修改： 36 BOOTPROTO=“static” #启用静态IP地址 37 加入个： 38 IPADDR=“192.168.0.121” #设置IP地址 39 GATEWAY=“192.168.0.1” #设置网关
【注意】设置好后保存！
然后重启网络吧：
1 [root@localhost ~]# service network restart #重启网络 2 Restarting network (via systemctl): [ OK ] 3 [root@localhost ~]# 4 5 6 [root@localhost ~]# ping 192.168.0.107 #ping局域网内的IP正常 7 PING 192.168.0.107 (192.168.0.107) 56(84) bytes of data. 8 64 bytes from 192.168.0.107: icmp_seq=1 ttl=64 time=0.759 ms 9 64 bytes from 192.168.0.107: icmp_seq=2 ttl=64 time=1.07 ms 10 64 bytes from 192.168.0.107: icmp_seq=3 ttl=64 time=0.615 ms 11 ^C 12 --- 192.168.0.107 ping statistics --- 13 3 packets transmitted, 3 received, 0% packet loss, time 2004ms 14 rtt min/avg/max/mdev = 0.615/0.816/1.076/0.195 ms 15 [root@localhost ~]# ping www.baidu.com #ping百度域名还是不行 16 ping: www.baidu.com: Name or service not known #出现这个错误