间歇性ssl_error_no_cypher_overlap
在过去的一周里,客户端在使用Firefox时,会随机获取ssl_error_no_cypher_overlap错误。 Safari和Chrome也出现连接问题。 出现此问题时,找不到任何软件包或代码更新。 我们在三台服务器之间进行负载平衡,三台服务器都具有相同版本的nignx(1.6.2-1.el5.ngx)和openssl(0.9.8e-32.el5_11),以及相同的configuration,指定哪些协议和密码(根据Mozilla推荐的nginxconfiguration)。 我不知道我在这里错过了什么。 所有服务器之间共享的nginxconfiguration: ssl on; ssl_certificate /etc/nginx/ssl/wildcard.pem; ssl_certificate_key /etc/nginx/ssl/wildcard.key; ssl_session_timeout 5m; ssl_session_cache shared:SSL:50m; ssl_protocols TLSv1; ssl_ciphers 'ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA'; ssl_prefer_server_ciphers on; 在我们的日志中: 2015/01/21 11:16:05 [crit] 3428#0: *150887640 SSL_do_handshake() failed (SSL: error:1408A0D7:SSL routines:SSL3_GET_CLIENT_HELLO:required cipher missing) while SSL handshaking, client: *.*.*.*, server: 0.0.0.0:443 2015/01/21 11:17:34 [crit] 3429#0: *150929634 SSL_do_handshake() failed (SSL: error:1408A0D7:SSL routines:SSL3_GET_CLIENT_HELLO:required cipher missing) while […]