. . . . . . 18 3. 3. 1 - E n s u r e t h at ad m i n i s t r at or p r i v i l e ge s ar e on l y gr an t e d t o t h os e w h o r e q u i r e t h e m . . . . . . . . . . . . . . . . . . . 18 3. 4 - i z e d r e ad s or w r i t e s . I t s h ou l d n ot b e r e ad ab l e or w r i t ab l e b y an y gr ou p m e m b e r s or t h e w or l d . A u d i t O n t h e e t c d s e r v e r n od e , ge t t h : E n ab l i n g t h e AlwaysPullImages ad m i s s i on c on t r ol p l u gi n c an c au s e d e - gr ad e d p e r f or m an c e d u e t o ov e r h e ad of al w ay s p u l l i n g i m age s . E n ab l