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docker cannot reach external urls

eg flag

i have a server and it has installed CSF (firewall). I run docker in the server and the docker-CSF config is enabled, I can reach the containters via nginx reverse proxy.

But i have a problem, the container cannot reach external urls, ex: google.com or facebook.com

When a task inside docker try to consume a external url, I got and error, like the next: Failed to open TCP connection to graph.facebook.com:443 (getaddrinfo: Try again)

How can i fix that? maybe a I need to add an extra rule to the CSF?

thanks in advance

user10489 avatar
nc flag
missing routing roule, missing nat rule, missing firewall rule, one of those.
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