Why can't create an index?

Question

elasticsearch

return await client.indices.create({
  index: 'blog'
});

Displays an error (node: 8156) UnhandledPromiseRejectionWarning: TimeoutError: Request timed out
Everything is fine with the connection, because I tested it on a different index. I want to create another one, but it displays this error

Answer 1

TimeoutError: Request timed out

Means that the socket is not listening on the port or behind the firewall.