Bonsoir et merci j'ai suivi les explications donné sur le lien mais désormais j'ai une nouvelle erreur, concernant le restart nginx :
/etc/init.d/nginx restart
[....] Restarting nginx (via systemctl): nginx.serviceJob for nginx.service failed. See 'systemctl status nginx.service' and 'journalctl -xn' for details.
failed!
root@ns302787:~#
root@ns302787:~# systemctl status nginx.service
● nginx.service - LSB: Stop/start nginx
Loaded: loaded (/etc/init.d/nginx)
Active: failed (Result: exit-code) since jeu. 2017-03-09 21:36:41 CET; 30s ago
Process: 20855 ExecStart=/etc/init.d/nginx start (code=exited, status=1/FAILURE)
mars 09 21:36:41 ns302787.ip-94-23-202.eu nginx[20855]: nginx: [emerg] open() "/etc/nginx/conf.d/ciphers.conf" failed (2: No such file or directo...conf:13
mars 09 21:36:41 ns302787.ip-94-23-202.eu systemd[1]: nginx.service: control process exited, code=exited status=1
mars 09 21:36:41 ns302787.ip-94-23-202.eu systemd[1]: Failed to start LSB: Stop/start nginx.
mars 09 21:36:41 ns302787.ip-94-23-202.eu systemd[1]: Unit nginx.service entered failed state.
Hint: Some lines were ellipsized, use -l to show in full.
root@ns302787:~# service nginx restart
Job for nginx.service failed. See 'systemctl status nginx.service' and 'journalctl -xn' for details.
root@ns302787:~# nginx -t
nginx: [emerg] open() "/etc/nginx/conf.d/ciphers.conf" failed (2: No such file or directory) in /etc/nginx/sites-enabled/rutorrent.conf:13
nginx: configuration file /etc/nginx/nginx.conf test failed
root@ns302787:~#
Encore merci à vous.