this all errors i recived after open port 80 , i use AWS
ec2-user@kali:~/certbot$ ./letsencrypt-auto
Requesting to rerun ./letsencrypt-auto with root privileges...
./letsencrypt-auto has insecure permissions!
To learn how to fix them, visit Certbot-auto deployment best practices
Saving debug log to /var/log/letsencrypt/letsencrypt.log
How would you like to authenticate and install certificates?
1: Apache Web Server plugin (apache)
2: Nginx Web Server plugin (nginx)
Select the appropriate number [1-2] then [enter] (press 'c' to cancel): 2
Plugins selected: Authenticator nginx, Installer nginx
No names were found in your configuration files. Please enter in your domain
name(s) (comma and/or space separated) (Enter 'c' to cancel): contactsocialmedia.com
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for contactsocialmedia.com
Waiting for verification...
Challenge failed for domain contactsocialmedia.com
http-01 challenge for contactsocialmedia.com
Cleaning up challenges
Some challenges have failed.
IMPORTANT NOTES:
-
The following errors were reported by the server:
Domain: contactsocialmedia.com
Type: connection
Detail: Fetching
http://contactsocialmedia.com/.well-known/acme-challenge/TjX8j6M_ZwCyCWPqBw5Es6aKWNDSnWEmqiS2PuwURGs:
Timeout during connect (likely firewall problem)To fix these errors, please make sure that your domain name was
entered correctly and the DNS A/AAAA record(s) for that domain
contain(s) the right IP address. Additionally, please check that
your computer has a publicly routable IP address and that no
firewalls are preventing the server from communicating with the
client. If you're using the webroot plugin, you should also verify
that you are serving files from the webroot path you provided.