CentOS 7 in docker info given solution docker bridge-nf-call-iptables is disabled in

Server:
 Containers: 4
  Running: 0
  Paused: 0
  Stopped: 4
 Images: 2
 Server Version: 19.03.1
.......................
WARNING: bridge-nf-call-iptables is disabled
WARNING: bridge-nf-call-ip6tables is disabled

Solution:

vim /etc/sysctl.conf

Add the following three lines at the end of the file:

net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
net.bridge.bridge-nf-call-arptables = 1

Then, execute the command:

sysctl -p

or:

sysctl -p 2>/dev/null| grep bridge

Now, we then execute the command: docker info, you can not see the error.