Hi, i have a fresh install of SMF2 and two mods: AEVA and PortaMX.
I want to know, if there must be default Filepermission and with wich settings.
SMF itself has some default permissions but you really should check them to make sure its what you want and change accordingly. Any mod you install that adds permissions usually dont have any default permissions set (being that the mod author has no idea how you'll be using the mod) so you really should set the permissions the way you want them.
sure, the modautrhor doesn't know it, but i don'T know what SMF itself need for filepermission.
at installation i read 777 and i think this couldn't be good for running a forum into this.
Ahh see... I thought u were talking about the member permissions :P
File and folder permissions depend on your server setup. Typically, the server will assign permissions when either is created. For files, normally it's 644. While for folder it's either 755, 777 or 775. Best thing to do for the folders is to check to see what the permissions are for existing folders and to use that.
Easy way:
Admin>Packages>Options>File Permissions.
If you set "Use predefined permission profile:" to "Standard", you won't go far wrong. :)