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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