Question

Let's Encrypt | Nginx web server SSL_ERROR_NO_CYPHER_OVERLAP ERR_SSL_VERSION_OR_CIPHER_MISMATCH

I’m getting this errors SSL_ERROR_NO_CYPHER_OVERLAP | ERR_SSL_VERSION_OR_CIPHER_MISMATCH when visiting mydomain.com .

this is my nginx configuration

server { listen 80; listen [::]:80; server_name www.mydomain.com mydomain.com; return 301 https://$host$request_uri; root /var/www/mydomain.com/html; }

server { server_name mydomain.com; listen 443 ssl; listen [::]:443 ssl; root /var/www/mydomain.com/html; index index.php index.html index.htm;

ssl_certificate /etc/letsencrypt/live/mydomain.com/fullchain.pem; ssl_certificate_key /etc/letsencrypt/live/mydomain.com/privkey.pem; }

sudo nginx -t nginx: the configuration file /etc/nginx/nginx.conf syntax is ok nginx: configuration file /etc/nginx/nginx.conf test is successful

for my domain im using cloudflare nameservers - point A to my web server and cloudflare SSL off

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Hello,

I would recommend checking the following:

openssl version
grep -Eri 'listen|ssl_cipher|ssl_protocol' /etc/nginx/

You might have to update your ssl_protocols and ssl_ciphers to:

ssl_protocols        SSLv3 TLSv1 TLSv1.1 TLSv1.2;
ssl_ciphers          HIGH:!aNULL:!MD5;

Regards, Bobby

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