Hi, I have just (again!) set up ispconfig v. 3.1.7p1 on Debian 9. Everything is working - except Lets Encrypt. When I enable it at the site setup, it is NOT saved (even though the rest of the site settings are). When I go into site editing the checkboxes SSL and Lets Encrypt SSL are NOT checked, and I cannot access the site. Error code ERR_SSL_PROTOCOL_ERROR. I should note, that I'm not using the DNS server in ISPconfig, instead Iäm using a free hosted DNS service. What am I missing ? Here is the test result: ##### SERVER ##### IP-address (as per hostname): ***.***.***.*** [WARN] could not determine server's ip address by ifconfig [INFO] ISPConfig is installed. [WARN] /usr/local/ispconfig/server/lib/config.inc.php is missing. ##### VERSION CHECK ##### [INFO] php (cli) version is 7.0.19-1 ##### PORT CHECK ##### ##### MAIL SERVER CHECK ##### ##### RUNNING SERVER PROCESSES ##### [WARN] I could not determine which web server is running. [WARN] I could not determine which mail server is running. [WARN] I could not determine which pop3 server is running. [WARN] I could not determine which imap server is running. [WARN] I could not determine which ftp server is running. ##### LISTENING PORTS ##### (only () Local (Address) [anywhere]:110 (-) [anywhere]:143 (-) [anywhere]:465 (-) ***.***.***.***:53 (-) [localhost]:53 (-) [anywhere]:21 (-) [anywhere]:22 (-) [localhost]:953 (-) [anywhere]:25 (-) [anywhere]:993 (-) [anywhere]:995 (-) [localhost]:10023 (-) [localhost]:10024 (-) [localhost]:10025 (-) [localhost]:10026 (-) [localhost]:10027 (-) [anywhere]:587 (-) [localhost]:11211 (-) [localhost]10 (-) [localhost]43 (-) *:*:*:*::*:80 (-) *:*:*:*::*:8080 (-) *:*:*:*::*:465 (-) *:*:*:*::*:8081 (-) *:*:*:*::*:53 (-) *:*:*:*::*:21 (-) *:*:*:*::*:22 (-) *:*:*:*::*:953 (-) *:*:*:*::*:25 (-) *:*:*:*::*:443 (-) *:*:*:*::*:993 (-) *:*:*:*::*:995 (-) *:*:*:*::*:10023 (-) *:*:*:*::*:10024 (-) *:*:*:*::*:10026 (-) *:*:*:*::*:3306 (-) *:*:*:*::*:587 (-) ##### IPTABLES ##### root@webhotel:/home/niels# Niels
Have You tried the advices in this thread: https://www.howtoforge.com/community/threads/err_ssl_protocol_error-on-second-ip.76343/page-2
