Schneider Electric Processor Adapter Instrukcja Użytkownika Strona 146

  • Pobierz
  • Dodaj do moich podręczników
  • Drukuj
  • Strona
    / 425
  • Spis treści
  • BOOKMARKI
  • Oceniono. / 5. Na podstawie oceny klientów
Przeglądanie stron 145
Using the Ethernet Port
870 USE 101 10 V..2 146
Security
Overview To restrict access to your Ethernet controller and I/O network, you may want to
consider a firewall. A firewall is a gateway that controls access to your network.
Types of
Firewalls
There are two types of firewalls:
l Network-level firewalls
l Application-level firewalls
Network-Level
Firewalls
Network-level firewalls are frequently installed between the Internet and a single
point of entry to an internal, protected network.
Application-
Level Firewalls
An application-level firewall acts on behalf of an application. It intercepts all traffic
destined for that application and decides whether to forward that traffic to the
application. Application-level firewalls reside on individual host computers.
Przeglądanie stron 145
1 2 ... 141 142 143 144 145 146 147 148 149 150 151 ... 424 425

Komentarze do niniejszej Instrukcji

Brak uwag