WatchGuard x1000 用户指南

下载
页码 314
Configuring an FTP Proxy Service
User Guide
149
6
Select the checkbox marked Masquerade MIME 
boundary strings
 to specify that the firewall converts 
MIME boundary strings in messages and attachments 
to a string that does not reveal internal host names or 
other identifying information.
Configuring an FTP Proxy Service
The FTP proxy service enables you to access another com-
puter (on a separate network) for the purposes of browsing 
directories and copying files. Consequently, FTP is inher-
ently dangerous. If configured incorrectly, the FTP service 
allows intruders to access your network and important 
information such as passwords and configuration files. 
FTP is also potentially dangerous outbound because it 
enables users on your network to copy virtually anything 
from outside the network to a location behind their fire-
wall.
Therefore, it is important to make the FTP service as 
restrictive as possible. Ideally, try to isolate the inbound 
FTP servers to a single host (or hosts) on your optional net-
work. Make sure you protect your trusted network from 
FTP requests from the host or hosts on the optional net-
work as well. Like SMTP, the FTP proxy includes custom-
ized features that provide more complete control over the 
traffic that passes through your firewall.
For detailed information about the FTP proxy, see the fol-
lowing FAQ:
For troubleshooting information for the FTP proxy, see the 
following FAQ: