Error generating certified with certbot on Centos

My domain is:

I ran this command: certbot certonly --standalone

It produced this output: Timeout during connect (likely firewall problem)

My web server is (include version): Wildfly

The operating system my web server runs on is (include version): Oracle Linux Server release 7.8

My hosting provider, if applicable, is: Hostgator

I can login to a root shell on my machine (yes or no, or I don't know): yes

I'm using a control panel to manage my site (no, or provide the name and version of the control panel):

The version of my client is (e.g. output of certbot --version or certbot-auto --version if you're using Certbot): Certbot 1.13.0

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Hi @a.pinales and Welcome to the community.
I am not familiar with your application server but I can say that the output you posted should give you a strong hint as to what is going on.

I can confirm that from my location your port 80 is not publicly accessible. Same for port 443.

80/tcp  filtered http
443/tcp filtered https

Firewall ? Router? ISP?
You'll need to find the culprit and open at least port 80 to get your cert.
"Best I can do on short notice"


Hi Rip,

The issue was generated by iptables's wrong config.

Thanks for the support.

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