Technique of the data security and computers in webs.
It consists leading into the structure of the network the element or elements accomplishing the similar role as fire walls in the residential building or fire curtains in theatres.They are installed on the contact point of the local area network with the outernet (with Internet for example). Transmitted data is subjected to the filtration. The fire wall is accepting them and letting in farther or rejecting.
Urząd Statystyczny w Szczecinie