cd /
chown root:root .
chmod 700 .

chown root:root *       # hardcore: chown -R root:root .
chmod og-rw *
# toto ^^^ by bolo treba pre vsetky adresare
chmod og+w tmp
chmod 750 boot
chmod 751 etc

chown -R root:root root
chmod -R og-rwx root

chown -R username:group home/usehomedir
chmod -R og-rwx home/*
chmod -R u+rwX home/*

chmod 750 sbin usr/sbin /usr/local/sbin
chmod 755 bin usr/bin usr/local/bin