Web
Server Proxy
Monitors Web traffic, blocking traffic attempting to enter through
ports other than port 80, selectively filtering content to protect
your Web clients:
- Forces strict compliance with established Web standards for Web traffic.
- Filters potentially dangerous MIME content types.
- Filters Java® and ActiveX® controls.
- Filters content to enforce your company's network use policy.
- Removes unknown headers to defend against new attack techniques.
- Removes cookies to defend network privacy.
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E-mail
Server Proxy
Inspects the content of incoming and outgoing e-mail to protect our
network from danger:
- Filters content to deny executable attachments.
- Filters address patterns for allowed or denied e-mail.
- Filters out malformed e-mail headers.
- Recognizes masqueraded domain names and message IDs.
- Specifies the maximum number of message recipients to alleviate
spam.
- Specifies the maximum message size to thwart mail bombing
attacks.
- Allows specific characters in e-mail addressing.
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FTP Proxy (File Transfer Protocol)
Controls FTP traffic, protecting the FTP server from attempts to
store unauthorized files, using it to attack another FTP server, or
an internal attempt to send classified data from our servers through
our firewall to the outside world:
- Controls FTP server commands.
- Controls file changes with "read-only" rules.
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DNS Proxy (Domain Name System)
Translates from the English domain names we can readily remember,
to the IP addresses computers understand:
If a DNS attack is successful, the hacker gains total control.
- Checks
for malformed headers and packets to ensure protocol conformity.
- Filters header content selectively for header class, type, or
length abnormalities
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