Set correct permissions for preshared keys
Created by: Pavche
This is needed in RHEL 7.6 in order for work correctly. Extract from the journal where an issue can be seen: ERROR: /etc/racoon/psk.txt has weak file permission ERROR: failed to open pre_share_key file /etc/racoon/psk.txt Context: -rw-r--r-- 1 root root /etc/racoon/psk.txt FIX: -rw------- 1 root root /etc/racoon/psk.txt