HP LX195 - MediaSmart Server - 1 GB RAM, Руководство пользователя, Страница: 46 / 236

HP MediaSmart Server User's Guide
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The following security measures help protect your network and computers:
•
Firewall protection
•
Wireless security
•
Anti-virus software
•
User name and password protection
•
Remote Access security
Firewall protection
A firewall is a hardware device or software program that protects your network from
unauthorized access. It protects your system from hackers running programs, sending
email, and gaining access to your private information. The following types of firewalls
protect your network and computers:
•
Broadband router firewall
•
Windows Home Server firewall
•
Personal firewall
Broadband router firewall
The HP MediaSmart Server requires a broadband router. Broadband routers allow
multiple computers and devices to share an internet connection using
NAT (Network
Address Translation) technology. NAT allows all the computers and devices on your
network to use a single internet connection (
IP address ). NAT acts as a firewall by
masking the real IP addresses of your network components—including the HP
MediaSmart Server—which keeps them from being seen outside the home.
Some broadband routers implement Stateful Packet Inspection (SPI), which adds
enhanced security by examining each packet of information before allowing it into the
network. SPI can prevent advanced forms of incursions like Denial of Service attacks.
Windows Home Server firewall
Windows Home Server includes Windows Firewall, which protects communications
between the server and the computers on your home network. This firewall is configured
to allow remote access. It is not configurable by the user.
Personal firewall
A personal firewall is a software application that protects an individual computer.
Because a personal firewall is behind the broadband firewall, it will protect the computer
on which it is installed from attacks from other computers within the network.
Firewall ports
The following table lists the ports used by the server.
Ports used by the server
Type Port numbers Description
TCP 80, 443 Standard Web site
TCP 55000, 56000 internal (subnet only) Web
site for Windows Home
Server Web services
TCP 1138 Transport