question
Unable to connect to the network after installing the virtual machine on the mac. Can't download software and can't pingwww.baidu.com
ideas and solutions
First, I installed a centos7 virtual machine with VMware. The host environment is mac m1. The virtual machine is in NAT mode and a static IP has been set. Can ping the host
1. DNS is not enabled
Because I ping different baidu, I first wondered if it was because I turned off DNS, so I tried to ping ip directly
ping 114.114.114.114
It is found that the ping still fails, so it is not a DNS problem.
2. The network card is not turned on
The ens160 here is the name of your network card. The name of the network card may be different in different environments. You need to modify it according to your own network card name.
You can know by looking /etc/sysconfig/network-scriptsunder the pathifcfg-ensxxx
vim /etc/sysconfig/network-scripts/ifcfg-ens160
Turn on network card options
ONBOOT=yes
restart the network card
service network restart
But I found here that my network card is turned on, so this is not the problem
3. Check the gateway configuration
Another possible reason is that the network cannot be connected due to the incorrect gateway settings in the virtual machine.
1. Then check the gateway address and execute the following command on the machine
cat /Library/Preferences/VMware Fusion/vmnet8/nat.conf
The ip here is the gateway, you can see that I am here 192.168.244.2
2. Check the gateway settings in the virtual machine
vim /etc/sysconfig/network-scripts/ifcfg-ens160
Check and find that the ip set by the gateway is 192.168.244.1, which is obviously wrong, so it is adjusted to the ip queried above
GATEWAY=192.168.244.1
DNS1=192.168.244.1
The complete modified network card configuration file is attached for your reference
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=static #dhcp
DEFROUTE=yes
IPV4_FAILURE_FATAL=yes # no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
IPV6_PRIVACY=no
NAME=ens160
UUID=c5581a60-f0fa-47a7-be3f-8c48592bec15
DEVICE=ens160
ONBOOT=yes
IPADDR=192.168.244.15
GATEWAY=192.168.244.2
NETMASK=255.255.255.0
DNS1=192.168.244.2
DNS2=114.114.114.114
3. Restart the network card service
service network restart
4. Execute the ping command again to test the network connection
ping www.baidu.com
success! problem solved
