Barracuda Networks 4 Instalační příručka stáhnout pdf (Strana 50)

50 Barracuda Spam Firewall Administrator’s Guide

TCP/IP Configuration The IP address, subnet mask, and default gateway of the Barracuda Spam

Firewall.

TCP port is the port on which the Barracuda Spam Firewall receives

inbound e-mail. This is usually port 25.

Note: If your Barracuda Spam Firewall is running firmware version 3.1.x or

earlier and is part of a clustered environment, then changing the IP address

of the system removes it from the cluster. You will need to add the system

back into the cluster after you change the IP address. If your Barracuda

Spam Firewall is running firmware version 3.2.x or above, the system

remains part of its cluster after its IP address changes.

Destination Mail Server

TCP/IP Configuration

(inbound mode only)

Server Name/IP: The hostname or IP address of your destination e-mail

server, for example mail.yourdomain.com. This is the mail server that

receives e-mail after it has been checked for spam and viruses.

You should specify your mail server’s hostname rather than its IP address

so the destination mail server can be moved and DNS updated at any time

without any changes to the Barracuda Spam Firewall.

TCP port is the port on which the destination mail server receives inbound

e-mail. This is usually port 25.

Valid Test Email Address: To test that the Barracuda Spam Firewall can

successfully send e-mail messages, enter an address in this field and click

Test SMTP Connection. The system sends a message to the e-mail

address you specify. The From address in this e-mail is

smtptest@barracudanetworks.com.

DNS Configuration The primary and secondary DNS servers you use on your network.

You should specify a primary and secondary DNS Server. Certain features

of the Barracuda Spam Firewall, such as Fake Sender Domain detection,

rely on DNS availability.

Proxy Server

Configuration (optional)

(inbound mode only)

If your Barracuda Spam Firewall is behind a proxy server, then you may

need to enter one or more of the following parameters so the system can

download Firmware and Energize Updates. Incorrect proxy settings can

cause your updates to fail.

• Server Name/IP - The IP address or hostname of the proxy server.

• TCP Port - The port (usually 8080) used for proxy client authentication.

• Username - The proxy username (if any) assigned to your Barracuda

Spam Firewall.

• Password - The proxy password (if any) assigned to your Barracuda

Spam Firewall.

Domain Configuration Default Hostname is the hostname to be used in the reply address for e-

mail messages (non-delivery receipts, virus alert notifications, etc.) sent

from the Barracuda Spam Firewall. The hostname is appended to the

default domain.

Default Domain is the domain name used in the reply address for e-mail

messages (non-delivery receipts, virus alert notifications, etc.) sent from the

Barracuda Spam Firewall.

Table 4.11:

1 2 ... 45 46 47 48 49 50 51 52 53 54 55 ... 141 142

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