[asterisk-users] Can't block intrusion

Greg Troxel gdt at lexort.com
Wed Apr 1 16:14:24 CDT 2020

D'Arcy Cain <darcy at VybeNetworks.com> writes:

> Here is the first four lines from "pfctl -sr":
> pass in quick on bge0 from <FRIENDS> to any flags S/SA keep state
> block drop in log quick on bge0 from <ENEMIES> to any
> block drop in log quick on bge0 from <AUTOBLOCK> to any
> block drop out log quick on bge0 from any to <AUTOBLOCK>

agreed that I can't see it.

>> You say "continues to try", but surely you are not surprised that
>> packets arrive at your computer.  I think you are surprised that they
>> make it to asterisk.  But your language doesn't quite line up with
>> that.  Am I misinterpreting?
> Maybe.  By "try" I don't mean "try to get through".  I mean "try to
> access my switch".  They aren't actually breaking in.  My passwords are
> strong enough to frustrate them.

Yes, but the fact that the sender is sending packets is no surprise.
The issue is about  how those are handled.   I think you need to use
tcpdump and turn up firewall debugging.

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