On 28-aug-2005, at 8:51, Atul Sabharwal wrote:
Generally, people use NAT or Proxy as firewalls. Would it be more
secure to use a NAT Proxy combination ?
Basically, a NAT is just a simple and general-purpose way to
implement a proxy.
If you define "more secure" as "less likely that random packets will
be delivered": sure, put in as much stuff that makes everything less
transparent as you can.
Obviously this won't help against many popular attack vectors which
prey upon the gullibility of the typical user, which mostly happen
over HTTP or through mail, which don't need a transparent
communication channel.
And please don't expect the IETF to make its protocols work through
your multiple layers of NAT and proxies.
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