question about a firewall

question about a firewall

Hetz Ben Hamo hetzbh at gmail.com
Sat Sep 4 01:18:04 IDT 2010


I'm not writing in my blogs about any of the issues that you mentioned, nor
do I host any such content, yet I had the "honour" of being DDoS attacked.

Hetz

2010/9/4 Etzion Bar-Noy <ezaton at tournament.org.il>

> Your Cisco won't protect you against these either. There are specific DDoS
> protection systems, which you are not going to try and afford. Unless your
> servers are about gambling, porn or something very hot, you will not likely
> be the target of DDoS attack. I haven't been myself, for the last 7 years or
> so.
>
> Ez
>
>
> On Sat, Sep 4, 2010 at 12:42 AM, Hetz Ben Hamo <hetzbh at gmail.com> wrote:
>
>> I'm doing this thing right now. The only issue I worry about is attacks
>> like DDoS.
>>
>> Hetz
>>
>> 2010/9/4 Etzion Bar-Noy <ezaton at tournament.org.il>
>>
>> Hi.
>>> I am in your shoes. I maintain several Linux systems hosted in Netvision
>>> (currently) for the last few years. For the last 7 years or so, I have been
>>> using iptables to protect my systems from intrusion. I have been using
>>> denyhosts to prevent unauthorized SSH logins, and prevented direct root
>>> login, or blocked all/some except my home fixed address and some other
>>> well-trusted addresses.
>>>
>>> This setup has proven itself to be effective and reliable, with zero
>>> intrusions (I stopped logging them after a while, because it's not that
>>> interesting, after all. The amount of random port scans are huge).
>>>
>>> Assuming you understand iptables, and you know how to handle it right,
>>> there is no problem with that solution. None that I have noticed.
>>>
>>> Ez
>>>
>>> 2010/9/3 Hetz Ben Hamo <hetzbh at gmail.com>
>>>
>>>> Hi people,
>>>> As I setup my VPS/dedicated hosting here in Israel, I have been asked by
>>>> the hosting company (Netvision) to either buy and bring a firewall or rent
>>>> from them since the bandwidth I bought exceeds what is allowed under their
>>>> firewall.
>>>> They're offering Cisco 1383 (or 1838, I don't remember exactly which
>>>> model).
>>>>
>>>> As a person who really loves Linux, I thought to myself: Why do I need
>>>> to buy/rent some proprietary Cisco solution? Can't Linux handle the firewall
>>>> task well? I'm sure Cisco/Checkpoint solutions are great, but yet...
>>>>
>>>> So here's my question: If you were in my shoes, would you take a cisco
>>>> or apply some Linux solution? If you say Linux solution, what kind of
>>>> solution? Could you name an app/module/whatever that can do a good
>>>> protection against the usual suspect and protect against stuff like DDoS
>>>> attack?
>>>>
>>>> I prefer the Linux solution because then I can run other services on
>>>> this machine (small mail server, nagios, etc..)
>>>>
>>>> Suggestions?
>>>>
>>>> Thanks,
>>>> Hetz
>>>>
>>>> --
>>>> my blog (hebrew): http://benhamo.org
>>>> Skype: heunique
>>>> MSN: hetz-blog at benhamo.org
>>>>
>>>> _______________________________________________
>>>> Linux-il mailing list
>>>> Linux-il at cs.huji.ac.il
>>>> http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il
>>>>
>>>>
>>>
>>
>> --
>> my blog (hebrew): http://benhamo.org
>> Skype: heunique
>> MSN: hetz-blog at benhamo.org
>>
>
>

-- 
my blog (hebrew): http://benhamo.org
Skype: heunique
MSN: hetz-blog at benhamo.org
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