строка из конфига:
[code]
proxy_cache_key "$request_method|$host|$request_uri|${cookie_ASP.NET_SessionId}";
[/code]

результат:
[code]
# service nginx reload
[emerg]: the closing bracket in "cookie_ASP" variable is missing in /etc/nginx/proxy_cache.conf:3
configuration file /etc/nginx/nginx.conf test failed
[/code]