Re: what might be safe limit for iptable ?

[Aarón Mizrachi <unmanarc () gmail com>]

On Domingo 30 Agosto 2009 09:47:21 J. Bakshi escribió:
> Hello list,
>
> I have a question in my mind during the configuration process of my
> firewall. "limit" option is used to accept the ( safe, defined by us )
> limit and we can drop everything else beyond that. And here I wounder to
> know the "safe" limit for different services.
>
> What might be the acceptable safe limit for ?
>
> 1> A very busy webserver ( port 80)
> 2> email
> 3> squid

It depends directly on the processor/network/speed capacity of your 
webserver/mailserver/proxyserver and your personal requirements, but in 
general, my suggestion is to avoid the "limit rate" option for public server, 
this is because it will drop valid and nonvalid connections as well on denial 
of service attacks.

Limit rate will be useful for many other pourporses, like cascade load 
balancing, and others. However, i think that "connlimit" is what you are 
looking for.


> Please suggest
> Thanks
>
> ------------------------------------------------------------------------
> Securing Apache Web Server with thawte Digital Certificate
> In this guide we examine the importance of Apache-SSL and who needs an SSL
> certificate.  We look at how SSL works, how it benefits your company and
> how your customers can tell if a site is secure. You will find out how to
> test, purchase, install and use a thawte Digital Certificate on your Apache
> web server. Throughout, best practices for set-up are highlighted to help
> you ensure efficient ongoing management of your encryption keys and digital
> certificates.
>
> http://www.dinclinx.com/Redirect.aspx?36;4175;25;1371;0;5;946;e13b6be442f72
> 7d1 ------------------------------------------------------------------------

-- 
Ing. Aaron G. Mizrachi P.    

http://www.unmanarc.com
Mobil 1: + 58 416-6143543
Mobil 2: + 58 424-2412503
BBPIN: 0x 247066C1

Attachment: signature.asc
Description: This is a digitally signed message part.