Ubuntu Server Web exposed folder recommended permissions

I am setting up my first server from scratch and as I am completely novice at this I am not sure if i am doing this right.

I have my web exposed folder at /var/www and as I need to it accessible to everyone and writable by group and owner I set its permission to 774.

Is this how things are supposed to be set up or am I doing something terribly wrong?

Answer

The general rule is to give the least possible permissions/privileges for users. Folders permissions should be generally either 755 (does not provide w for group) or 775 (provide w for group).

In your case, 774 might not be enough for web server process to access the folder given that it is not the owner and is not a member in its group.

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