gistfile1.txt

    location @missing {
        # how can i always log this?
        return 404;
    }

    location ~* \.(jpg|jpeg|gif|css|js)$ {
        access_log   off;
        expires      30d;

        rewrite_log on;
        rewrite "^(.*)\.([0-9a-fA-F]{7})\.(.*)$" $1.$3 last;
        try_files $uri @missing;
    }