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From: Conrad Wood <cnw@conradwood.net>
To: users@lists.bitfolk.com
Sent: Mon, November 1, 2010 8:33:37 AM
Subject: [bitfolk] SIP scans

Hi all,

I am hosting a public asterisk box as backup support for some clients.
Most annoyingly since a few days I get hundreds of sip register probes
per minute.
I have fail2ban active which bans the ip, but it seems to be some sort
of bot network which immediately switches to another IP.
Needless to say, it is a pain.
As clients' phones register against the server (coming from dynamic ips)
I can't easily move to a different port or so ;(
Has anyone got any good suggestions?

Conrad


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