NginX with FastCGI and WordPress in a subdirectory - "No input file specified"

Are you using WordPress with Multisite?

I am not clear about your setup, but a tutorial from this list will surely help you: http://rtcamp.com/wordpress-nginx/tutorial

If you can share more details, I can guide you better.

From where does 8080 coming into picture? R u using Nginx with Apache??

"No input file specified" looks like an error related to incorrect location of PHP file...

Try changing

enter code herefastcgi_index index.php;

try_files index.php blog/index.php

Assuming 'blog' is a folder where you moved your WordPress.

CodeHunter