Connecting to web admin with aws

I've been having some trouble conencting to the admin web panel. I followed this guide, https://androidtechieblog.wordpress.com/2015/12/27/ejabberd-using-amazon... and my .yml looks more or less the same. I've tried having the public dns include and exclude the 3 "ec2" characters, no difference. I've always changed the security permissions on my instance to allow inbound on port 5280; my browser still cannot connect.

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