Nginxで同じサーバーに複数のIP address用の証明書を配置する ref: http://qiita.com/t_oginogin/items/c6a95a9d61424141dff3

file0.txt

local address：xxx.xxx.xxx.xxx
global address：yyy.yyy.yyy.yyy

file1.txt

/etc/nginx/ssl_certfile/key_yyy_yyy_yyy_yyy/server_pem.crt
/etc/nginx/ssl_certfile/key_yyy_yyy_yyy_yyy/server_pem.key

file2.txt

/etc/nginx/ssl_certfile/key_xxx_xxx_xxx_xxx/server_pem.crt
/etc/nginx/ssl_certfile/key_xxx_xxx_xxx_xxx/server_pem.key

file3.txt

upstream sample_app {
  server unix:/var/www/sample_app/tmp/sockets/unicorn.sock;
}

server {
  listen       yyy.yyy.yyy.yyy:443;
  server_name  sample_app;

  ssl                 on;
  ssl_certificate     /etc/nginx/ssl_certfile/key_yyy_yyy_yyy_yyy/server_pem.crt;
  ssl_certificate_key /etc/nginx/ssl_certfile/key_yyy_yyy_yyy_yyy/server_pem.key;
  ssl_protocols       SSLv3 TLSv1;
  ssl_ciphers         HIGH:!ADH:!MD5;

  location / {
    try_files $uri $uri/index.html $uri.html @sample_app;
    client_max_body_size 2M;
  }

  location @sample_app {
    proxy_read_timeout 30;
    proxy_connect_timeout 30;
    proxy_redirect     off;
    proxy_set_header   X-Forwarded-Proto https;
    proxy_set_header   Host              $http_host;
    proxy_set_header   X-Real-IP         $remote_addr;

    proxy_pass http://sample_app;

    proxy_send_timeout 30;
  }
}

server {
  listen       xxx.xxx.xxx.xxx:443;
  server_name  sample_app;

  ssl                 on;
  ssl_certificate     /etc/nginx/ssl_certfile/key_xxx_xxx_xxx_xxx/server_pem.crt;
  ssl_certificate_key /etc/nginx/ssl_certfile/key_xxx_xxx_xxx_xxx/server_pem.key;
  ssl_protocols       SSLv3 TLSv1;
  ssl_ciphers         HIGH:!ADH:!MD5;

  location / {
    try_files $uri $uri/index.html $uri.html @sample_app;
    client_max_body_size 2M;
  }

  location @sample_app {
    proxy_read_timeout 30;
    proxy_connect_timeout 30;
    proxy_redirect     off;
    proxy_set_header   X-Forwarded-Proto https;
    proxy_set_header   Host              $http_host;
    proxy_set_header   X-Real-IP         $remote_addr;

    proxy_pass http://sample_app;

    proxy_send_timeout 30;
  }

file4.txt

net.ipv4.ip_nonlocal_bind = 1

file5.txt

$ sysctl -p /etc/sysctl.conf

file6.txt

$ sudo /sbin/service nginx start
Starting nginx: [emerg]: bind() to yyy.yyy.yyy.yyy failed (99: Cannot assign requested address)