[asterisk-users] Being attacked by an Amazon EC2 ...

Philipp von Klitzing klitzing at pool.informatik.rwth-aachen.de
Sun Apr 11 09:06:15 CDT 2010


> My phones (SNOMs) all are on the same LAN within a 192.168.X.X adress
> range. I wonder if everything would become a little bit more secure if
> define them with "host=192.168.X.X" in sip.conf instead of
> "host=dynamic". I tried it as a quick shot but it didn't work as they
> still try to register. Does someone know if this was possible and
> where/how to configure it on the snom side? 

Unfortunately you cannot tell the SNOM to not register for an active 
identity - at least not in the web UI. :-(

Instead use permit/deny in sip.conf for your SIP clients, and most 
importantly: Use strong (and long) passwords.


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