can't configure PHP-FPM on Socket

HI

I try to "Use Socket for PHP-FPM (which seems to be set by default on 3.0.5.4rc2 ?).
However, whenever I try to reach the domain I get a "Bad Gateway".

Here's the log:

Code:

connect() to unix:/var/lib/php5-fpm/web3.sock failed (13: Permission denied) while connecting to upstream, client: 85.XX.XX.XX, server: XXXYYY.com, request: "GET / HTTP/1.1", upstream: "fastcgi://unix:/var/lib/php5-fpm/web3.sock:", host: "www.XXXYYY.com"

I didn't change anything on the permissions and they all look good to me…

 

But I'm using 3.0.5.4rc2 and the problem is still there…

 

The vhost of nginx and the conf of PHP-FPM both look OK to me.
What would I look for?
What file would I change to fix this?

 

Thank you, working now!