▁S MP , ▁ 5 . 0 . 4 ▁ ▁S CO ▁Unix ware ▁ 2 . 1 . 1 ▁and ▁ 2 . 1 . 2 ▁ ▁Sun OS ▁ 4 . 1 . 3 ▁and ▁ 4 . 1 . 4 ▁ ▁Windows ▁ 9 5 , ▁N T ▁and ▁XP ▁SP 2 , ▁ ▁Pre vention ▁Most ▁fire w alls ▁should ▁intercept ▁and ▁disc ard ▁the ▁poison ▁packet ▁thus ▁protect ing ▁the ▁host ▁from ▁this ▁attack . ▁Some ▁operating ▁systems ▁released ▁updates ▁fixing ▁this ▁security ▁hole . ▁ ▁See ▁also ▁ ▁S low lor is ▁( comput er ▁security ) ▁ ▁High ▁Or bit ▁I on ▁C annon ▁ ▁Low ▁Or bit ▁I on ▁C annon ▁ ▁Re Do S ▁ ▁Den ial - of - service ▁attack ▁ ▁References ▁ ▁External ▁links ▁In secure . Or g ' s ▁original ▁post ▁about ▁the ▁attack ▁Article ▁about ▁XP ' s ▁vulner ability ▁ ▁Category : Den ial - of - service ▁attacks ▁Category : Types ▁of ▁cy ber att acks <0x0A> </s> ▁N aga ▁City ▁may ▁refer ▁to ▁these ▁places ▁in ▁the ▁Philippines : ▁ ▁N aga , ▁Cam ar ines ▁Sur ▁N aga , ▁C eb u ▁ ▁See ▁also ▁ ▁N aga ▁( disambiguation ) <0x0A> </s> ▁The ▁year ▁ 2 0 0 6 ▁is ▁the ▁ 5 th ▁year ▁in ▁the ▁history ▁of ▁the ▁Universal ▁Re ality ▁Com bat ▁Championship , ▁a ▁mixed ▁mart ial ▁arts ▁promotion ▁based ▁in ▁the ▁Philippines . ▁In ▁ 2 0 0