I have two separate issues on my AWS server.
1. The LetsEncrypt SSL certificate always fails to renew, so it throws a security warning when trying to access the website
2. Separately, AWS sent me an email about an abuse issue
"The reported activity is the result of what is known as a reflection / amplification denial of service (DoS) attack. What this means is that certain ports (in this case, UDP Port 111) can be made to respond to a malicious request, with a lot of traffic being sent to the target of the DoS attack (in this case, Google IP addresses were the targets of the DoS, and your EC2 Instances were remotely used to DoS them).
The vulnerability is caused by allowing *Inbound Traffic* from anywhere in the world (0.0.0.0/0) to all ports (0 - 65535) in your security groups configuration (which are attached to your EC2 Instances).
To resolve this incident, please configure or firewall your server so it
does not accept UDP requests to the listed port(111) from untrusted third
We have taken the following action against your instance(s) to prevent further abuse:
***Blocked UDP Port 111***
Reported Activity: DoS"
At the moment, the website is down. Cannot access it
Hey, I can fix you Amazon Web Service (AWS EC2) Server right away for LetsEncrypt SSL and DDoS attacks by installing a firewall. Contact me for more details. Regards, Haris
10 freelancers are bidding on average $106 for this job
Hi, I will check issue with ssl and make it activated and also scan complete server and find the issue with securities and implement firewall and other securities on server. Thank you
Hi, I will setup and configure SSL on the server and will also implement all the server side securities on AWS server. i will also resolve all the threats coming to the server. Thank you.