Are you able to connect with out SSL/TLS enabled ( the plain http version ? ) Also can you check your error logs and post the exact text message here ?
Also consider some possible causes here
http://blog.techstacks.com/2010/03/3-common-causes-of-unknown-ssl-protocol-errors-with-curl.html
Here is (some of) the current web log (not error log)
88.162.235.123 sorb-on.fr - [31/Oct/2016:14:26:55 +0100] "GET /2016/10/28/differences-qatar-arabie-saoudite/?cf_action=sync_comments&post_id=8532 HTTP/1.1" 200 43 "https://sorb-on.fr/2016/10/28/differences-qatar-arabie-saoudite/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/601.7.7 (KHTML, like Gecko) Version/9.1.2 Safari/601.7.7"
88.162.235.123 sorb-on.fr - [31/Oct/2016:14:26:55 +0100] "GET /2016/09/19/non-conflits-moyen-orient-ne-affrontement-chiite-sunnite/?cf_action=sync_comments&post_id=7948 HTTP/1.1" 200 43 "https://sorb-on.fr/2016/09/19/non-conflits-moyen-orient-ne-affrontement-chiite-sunnite/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/601.7.7 (KHTML, like Gecko) Version/9.1.2 Safari/601.7.7"
88.162.235.123 sorb-on.fr - [31/Oct/2016:14:26:58 +0100] "GET /wp-content/uploads/2015/09/bg-8.png HTTP/1.1" 200 35408 "https://sorb-on.fr/2016/09/19/non-conflits-moyen-orient-ne-affrontement-chiite-sunnite/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/601.7.7 (KHTML, like Gecko) Version/9.1.2 Safari/601.7.7"
157.55.39.82 sorb-on.fr - [31/Oct/2016:14:27:01 +0100] "GET /2016/06/20/sexe-feminin-humour-insolent-liv-stromquist-a-linstitut-suedois/ HTTP/1.1" 301 26 "-" "Mozilla/5.0 (compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm)"
88.219.187.218 sorb-on.fr - [31/Oct/2016:14:27:21 +0100] "POST /wp-admin/admin-ajax.php HTTP/1.1" 200 43 "https://sorb-on.fr/wp-admin/edit.php" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/602.1.50 (KHTML, like Gecko) Version/10.0 Safari/602.1.50"
163.172.65.14 sorb-on.fr - [31/Oct/2016:14:27:26 +0100] "GET /2016/09/17/entretien-avec-serge-halimi/ HTTP/1.1" 200 13688 "-" "Mozilla/5.0 (compatible; AhrefsBot/5.1; +http://ahrefs.com/robot/)"
54.236.1.13 sorb-on.fr - [31/Oct/2016:14:27:47 +0100] "GET /wp-content/uploads/2015/09/cropped-cropped-sorb_on_logo__small__-300x300-32x32.png HTTP/1.1" 200 1744 "-" "Pinterest/0.2 (+http://www.pinterest.com/)"
54.236.1.13 sorb-on.fr - [31/Oct/2016:14:27:47 +0100] "GET /wp-content/uploads/2015/09/cropped-cropped-sorb_on_logo__small__-300x300-180x180.png HTTP/1.1" 200 11209 "-" "Pinterest/0.2 (+http://www.pinterest.com/)"
54.236.1.13 sorb-on.fr - [31/Oct/2016:14:27:53 +0100] "GET /wp-content/uploads/2016/06/dsc_1107-300x180.jpg HTTP/1.1" 200 17648 "-" "Pinterest/0.2 (+http://www.pinterest.com/)"
54.236.1.11 sorb-on.fr - [31/Oct/2016:14:27:55 +0100] "GET /wp-content/uploads/2016/02/atelier_journalisme_sidebar_min.jpg HTTP/1.1" 200 29960 "-" "Pinterest/0.2 (+http://www.pinterest.com/)"
46.105.57.169 sorb-on.fr - [31/Oct/2016:14:29:14 +0100] "POST /wp-cron.php?doing_wp_cron=1477920554.4206900596618652343750 HTTP/1.1" 302 233 "http://sorb-on.fr/wp-cron.php?doing_wp_cron=1477920554.4206900596618652343750" "WordPress/4.6.1; https://sorb-on.fr"
51.255.65.28 sorb-on.fr - [31/Oct/2016:14:29:13 +0100] "GET /2015/01/25/je-change-de-file-ou-comment-peut-on-etre-persanne/ HTTP/1.1" 301 26 "-" "Mozilla/5.0 (compatible; AhrefsBot/5.1; +http://ahrefs.com/robot/)"
And there is nothing in the error log…
Yes, the http version works fine ! The problem is that my error log is empty… When I try a curl from my computer :
* Rebuilt URL to: https://sorb-on.fr/
* Trying 46.105.57.169…
* Connected to sorb-on.fr (46.105.57.169) port 443 (#0)
* Server aborted the SSL handshake
* Closing connection 0
curl: (35) Server aborted the SSL handshake
Thank you for your answer 🙂
Here is the answer from a Ubuntu Curl (more informations) :
curl -v https://sorb-on.fr
* Rebuilt URL to: https://sorb-on.fr/
* Hostname was NOT found in DNS cache
* Trying 46.105.57.169…
* Connected to sorb-on.fr (46.105.57.169) port 443 (#0)
* successfully set certificate verify locations:
* CAfile: none
CApath: /etc/ssl/certs
* SSLv3, TLS handshake, Client hello (1):
* Unknown SSL protocol error in connection to sorb-on.fr:443
* Closing connection 0
curl: (35) Unknown SSL protocol error in connection to sorb-on.fr:443
But sometimes, the curl works and the whole html is displayed… I don’t understand … !