[Freeswitch-dev] Automatically don't respond to abnormal registrations

[Steven Ayre]

http://wiki.freeswitch.org/wiki/Fail2ban



On Sunday, September 29, 2013, Sayyed Mohammad Emami Razavi wrote:

> Can anyone describe a way in FS to get rid of crawlers and hackers testing
> your PBX second by second on the internet?!
> What is the problem? This is ls of my FS's sqlite db after some annoying
> behaviours of hackers and crawlers violently done:
> [root at freeswitch db]# ll
> total 705580
> -rw-r--r-- 1 root root      7168 Sep 29 13:20 callcenter.db
> -rw-r--r-- 1 root root     14336 Sep 23 10:29 call_limit.db
> -rw-r--r-- 1 root root    257024 Sep 29 13:56 core.db
> -rw-r--r-- 1 root root      5120 Sep 29 13:20 fifo.db
> -rw-r--r-- 1 root root     98304 Sep 24 11:34 sofia_reg_sipinterface_2.db
> -rw-r--r-- 1 root root    367616 Sep 25 18:31 sofia_reg_sipinterface_3.db
> -rw-r--r-- 1 root root 500726784 Sep 29 13:56 sofia_reg_sipinterface_5.db
> -rw-r--r-- 1 root root 221003312 Sep 29 13:56
> sofia_reg_sipinterface_5.db-journal
> -rw-r--r-- 1 root root     16384 Sep 23 10:29 voicemail_default.db
> [root at freeswitch db]#
>
> sofia_reg_sipinterface_5.db belongs to the interface listening on 5060
> port.
>
> As you see sofia_reg_sipinterface_5.db exceed 500MB of size! and this db
> has crashed!
> and leads to drop port 5060 of interfaces.
>
> when i ask fs_cli about profiles it tells me:
> +OK log level  [7]
> freeswitch at internal> sofia status
>                      Name       Type
>                                       Data    State
>
> =================================================================================================
>            sipinterface_3    profile
> sip:mod_sofia at 192.168.2.73:5080    RUNNING (0)
>               voicemail_1      alias
> sipinterface_2    ALIASED
>               voicemail_2      alias
> sipinterface_2    ALIASED
>            sipinterface_2    profile
> sip:mod_sofia at 192.168.2.73:5070    RUNNING (0)
>
> =================================================================================================
> 2 profiles 2 aliases
>
>
> Which open source firewalls can handle automatically weird sip requests to
> ban?!
>
> Sincerely yours,
>
>
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