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CentOS solves the problem that the external network cannot be accessed after the docker port is mapped to the host

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Posted on 2/14/2019 7:17:08 PM | | | |
Linux solves the problem that the external network cannot be accessed after the docker port is mapped to the host

Solution:

# vi /etc/sysctl.conf



or
# vi /usr/lib/sysctl.d/00-system.conf
Add code like this:
net.ipv4.ip_forward=1

Restart the network service
# systemctl restart network

Check if the modification is successful
# sysctl net.ipv4.ip_forward

If it returns "net.ipv4.ip_forward = 1", it is a success



We tried accessing the port with an extranet without any problems!





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