What should I do if I cannot access the Internet after installing docker?

The solution steps are as follows:

1. Edit the virtual machine file:

vim /etc/sysctl.conf

2. Add the following configuration

net.ipv4.ip_forward=1

3. Restart the service

systemctl restart network

4. Check whether the properties have been modified successfully

sysctl net.ipv4.ip_forward

Recommended tutorial: docker tutorial

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