It is not a solution but advice, and I am sorry if I offended you. I think you need to close your server. It is not worth it to protect your server. There's a possibility that your server is shared with other attackers. More attackers means a high probability that you get compromised. With one wrong setting, your whole network will be compromised. Maybe pay for service instead.
It is not a solution but advice, and I am sorry if I offended you. I think you need to close your server. It is not worth it to protect your server. There's a possibility that your server is shared with other attackers. More attackers means a high probability that you get compromised. With one wrong setting, your whole network will be compromised. Maybe pay for service instead.