Folder Security with Chmod 777

[JL]

Sorry for bumping up an old thread but I thought rather than cluttering up the forum with a new one I would just ask my question here since my issue is similar.

I had to set the /data/ and /backups/ folders to 777 in order to install as well.

But afterward, I was able to change it back to 755 and everything is working so far.

And I was wondering,

1. Is 755 the recommended setting for those 2 folders?

2. What about the gsconfig.php file? What setting should that be?

Thanks for any help and especially for providing such a great application!!!