Re: Filtering incoming 3G smartphone traffic using iptables?
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On Thu, Aug 9, 2012 at 2:49 PM, /dev/rob0 <rob0@xxxxxxxxx> wrote: > On Thu, Aug 09, 2012 at 02:34:43PM -0500, Bryan K. Walton wrote: > > MAC address filtering on wireless is not effective. All an attacker > has to do is monitor the traffic a minute or less and choose a MAC > address to spoof. Thanks for that information. > When using your 3g network, the packets will come in through your > Internet connection, using the MAC address of your upstream router. > Indeed, you probably do not want to enable SSH for that MAC. Indeed. >> But how can I restrict port 22 access to this smart phone when >> using 3g service for its Internet? Do I have any options? > > You can Google around and find port knocking solutions. That would be > on topic here. But the real question, "how do I secure my ssh against > attackers?" is less so. Thanks for the reply. I should have worded my question more precisely. I'm not really looking for tips to lock down my ssh server. I recognize that is off-topic. What I'm really trying to figure out is if there is an IP tables module that makes use of something like the MEID. Thanks, Bryan -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html