 skreen cheyabadina sab ‌ nett ‌ ku anaku ooka udaaharanha ivvande 
 nett ‌ varey bhadratalo skreen cheyabadina sab ‌ nett muudu vaervaeru sab ‌ nett ‌ lanu nirvachinchadaaniki okati ledha anthakante ekuva logically screeniing router ‌ lanu fire ‌ wal ‌ gaaa vupayoginchadanni suchisthundi :  baahya router  ( konnisarlu yaakses router ani pilustharu ),  idi baahya nett ‌ varey ‌ nu chuttukolata nett ‌ varey nundi vary chesthundu mariyu amtargata amtargata nett ‌ varey nundi chuttukolata nett ‌ varey ‌ nu veruchese ruter  ( konnisarlu chok ruter ani pilustharu ).  chuttukolata nett ‌ varey ,  sarihaddu nett ‌ varey ledha demiliterised zoan  (DMZ)  ani kudaa piluvabadutundi ,  idi amtargata mariyu baahya nett ‌ varey ‌ l nundi yaakses cheeyagala ledha yaakses cheeyagala sarvar ‌ lanu  ( konnisarlu basthi hoost ‌ lu ani pilustharu )  hosting cheyadanki uddeshinchabadindhi .  skreen cheyabadina sab ‌ nett ledha  DMZ  yokka uddhesyam internet ledha ex ‌ tranet mariyu amtargata nett ‌ varey vento baahya mariyu uuhinchina pratikula nett ‌ varey Madhya unna ooka nett ‌ varey ‌ nu adhika bhadrathatho erpaatu cheeyadam .

 screend sab ‌ nett anede i - commerce ledha world wied webb ‌ loo unikini kaligi unna ledha elctronic cheyllinpu vyavasthalu ledha itara nett ‌ varey sevalanu upayogistunna edaina samshtha choose hackerlu ,  adunaatana nirantara bedirimpulu ,  computers worm ‌ lu ,  bat ‌ nett ‌ lu mariyu nett ‌ worked inparmeeshan sistom ‌ laku itara bedirimpulu .