I'm in the process of trying to convert a Pound config file that manages
multiple SSL sites over to Nginx. If I just have one site setup in the
nginx.conf file then everything, including the SSL, works fine. But if I
add a second server block for a different domain, then the second tries
to use the SSL certificate for the first, resulting in the browser
raising security warnings. My conf file is below. Any hints at what I
am doing wrong would be greatly appreciated.

-----------------------------------

user wwidea;
worker_processes 1;

events {
worker_connections 1024;
}


http {
include mime.types;
default_type application/octet-stream;
passenger_root /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.2;
passenger_ruby /usr/local/bin/ruby;
passenger_max_pool_size 20;
passenger_pool_idle_time 3600;

sendfile on;
gzip on;
keepalive_timeout 65;

server {
listen 443;
server_name www.domain1.com;
root /var/rails/domain1/current/public;

ssl on;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
proxy_redirect false;
proxy_max_temp_file_size 0;
ssl_certificate /var/ssl-certs/domain1.cert;
ssl_certificate_key /var/ssl-certs/domain1.key;
index index.html index.htm;
passenger_enabled on;
}

server {
listen 443;
server_name www.domain2.com;
root /var/rails/domain2/current/public;

ssl on;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
proxy_redirect false;
proxy_max_temp_file_size 0;
ssl_certificate /var/ssl-certs/domain2.cert;
ssl_certificate_key /var/ssl-certs/domain2.key;
index index.html index.htm;
passenger_enabled on;
}
}