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Re: [Openvpn-users] blocking hack attempts


  • Subject: Re: [Openvpn-users] blocking hack attempts
  • From: Marco Fretz <mailinglist@xxxxxxx>
  • Date: Sat, 05 Jan 2008 20:06:10 +0100

hello

i never used fail2ban but i sounds good.
u can easily write a script that scans ur openvpn / messages log, counts 
failed remote ips and blocks them over a iptables command. but as far as 
i read fail2ban is exactly that and more :)

marco


Yan Seiner schrieb:
> Daniel L. Miller wrote:
>   
>> Yan Seiner wrote:
>>   
>>     
>>> I've started experiencing a 'dictionary attack' - someone is determined 
>>> to get in.  This is more of a nuisance than anything, but I would like 
>>> to figure out a way to block UDP attacks, similar to the SSH blocks.
>>>
>>> They've been hitting me twice a second for days now.  I'm getting annoyed.
>>>
>>> UDP is stateless though - any way to figure out how to block these 
>>> attacks at the firewall?
>>>
>>> --Yan
>>>   
>>>     
>>>       
>> fail2ban
>>
>>   
>>     
> COOL!
>
> You don't by any chance have a config for openvpn you can share, do you?
>
> --Yan
>
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