No, you may not.  :-)

Hosts also need firewalling.

-Philip


John Novack wrote:
> May I assume this firewall module is not usable with boards that only 
> have a single Ethernet port?
>
>
> John Novack
>
>
> Philip Prindeville wrote:
>> Darrick Hartman (lists) wrote:
>>   
>>> Michael Keuter wrote:
>>>   
>>>     
>>>>>>>  -Philip
>>>>>>>           
>>>>>>>             
>>>>>>  A problem in Astlinux is, that before you can add an attacker to the
>>>>>>  blocklist (when you see the attacks in realtime), the "/var/"
>>>>>>  partition will be full within 2-3 minutes just because of the growing
>>>>>>  syslog :-(. And from that point in time you do not have any logs at
>>>>>>  all. Is there a way that the rotated log can automatically zipped?
>>>>>>         
>>>>>>           
>>>>> You can set Arno's firewall not to log blocked attacks.  That is an 
>>>>> option.
>>>>>
>>>>> --
>>>>> Darrick Hartman
>>>>>       
>>>>>         
>>>> Hi Darrick,
>>>>
>>>> I know that, but when the attack starts (and you don't see the attack 
>>>> live) you don't know the attacker IP-address. Then the log messages 
>>>> are coming from Asterisk. And within 2-3 minutes /var/ is full by the 
>>>> log messages of Asterisk (not by the firewall).
>>>>     
>>>>       
>>> Two ways around that.
>>>
>>> 1).  If you have enough system ram, you can set the size of the var 
>>> partition in the rc.conf file to a larger size.
>>>
>>> 2).  Only allow SIP access from the IP addresses that you need to allow. 
>>>   Instead of having a wide-open port 5060, only accept SIP traffic from 
>>> the IP addresses of your VOIP provider.
>>>
>>> Of course, if you're allowing anonymous calls into your Asterisk system, 
>>> you can't do #2.
>>>
>>> Darrick
>>>   
>>>     
>>
>> Michael:
>>
>> The outstanding news is that anyone can contribute to Arno's Iptables 
>> Firewall, including you.  :-)
>>
>> Seriously though, it shouldn't be too hard to take 
>> /usr/share/arno-iptables-firewall/plugins/50ssh-brute-force-protection.plugin
>>  
>> (or whatever it's called) and tweak it to do the same sort of 
>> rate-limiting with UDP traffic to port 5060 (or 5060-5064 or whatever).
>>
>> Try doing that... getting it working, and we can see about submitting it 
>> to Arno as part of the user contributed list of plugins.
>>
>> He's very receptive.  :-)
>>
>> -Philip
>>     


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