Thanks @9peppe, Yesterday I post a question about sudo certbot renew --dry-run error. I got answer that I should check something blocking the renewal process. I have fortigate firewall and I have only IPS. other than all the required port in and out is okay.
How to or where should I look into inside my ubuntu machine that my renewal will be okay if IU run --dry-run again? I am not sure what is blocking and don’t know where to look.
What should I do so I can correct error that showing below?
File “/usr/lib/python3/dist-packages/certbot/renewal.py”, line 477, in handle_renewal_request
len(renew_failures), len(parse_failures)))
certbot.errors.Error: 1 renew failure(s), 0 parse failure(s)
You should definitely not get a python traceback thrown at you.
Is your server listening on port 80? (unsecured http)
I read @JuergenAuer told you already to check your firewall. It is incredibly difficult to help you without knowing the full domain name and without the possibility to run tests against it.
There may be other firewalls in front of your own.
thanks again @9peppe full domain is https://cep..com and http://cep..com is redirected to https. Front of ubuntu there is a FortiGate firewall and IPS on it
That very strange. I am from out of office and trying from home using different network and when I type http://cep..com it redirects to me to https://cep..com