Re: [PATCH v2] add stealth mode

From: Valdis . Kletnieks
Date: Mon Jul 06 2015 - 06:50:20 EST


On Thu, 02 Jul 2015 10:56:01 +0200, Matteo Croce said:
> Add option to disable any reply not related to a listening socket,
> like RST/ACK for TCP and ICMP Port-Unreachable for UDP.
> Also disables ICMP replies to echo request and timestamp.
> The stealth mode can be enabled selectively for a single interface.

A few notes.....

1) Do you have an actual use case where an iptables '-j DROP' isn't usable?

2) You *do* realize that this isn't anywhere near sufficient in order
to actually make your machine "invisible", right? (Hint: What *other*
packets can be sent to a machine to provoke a response?)

3) At least my copy had massive whitespace damage, where all the tab characters
appear to have evaporated....

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