Re: A good question about NIDS & HIDS or why NIDS ant not just HIDS?

[aditya mukadam <aditya.mukadam () gmail com>]

If we have unbreakable safe at house , we still need doors,
surveillance cameras in buildings, security guards !

Both HIDS and NIDS has there own importance based on the requirements.
Its not a good  idea to substitute one with another.

Few points to consider:
1) HIDS is not a scalable option. It creates resources overhead to
manage multiple HIDS than a single NIDS.
2) From an administrator's perspective, its better to analyze NIDS's
single report of network traffic,incidents any network anomaly  etc
than checking HIDS individual reports.
3)  Just in case the HIDS fails or is out of signature update, its
better to have an alternate option i.e. a second line of defense,NIDS.

Hope this helps.

Thanks,
Aditya Govind Mukadam
CISSP,CEH, JNSA-Advanced Security, JNCIA-SSL,CQS-PIX,CQS-VPN



On Wed, May 27, 2009 at 6:16 AM, Juan B <juanbabi () yahoo com> wrote:
> HI,
>
> I am thinking that if the target of  a hacker is always the server so why I need the NIDS ? I can monitor very well 
> just the servers with some kind of HIDS like Ossec and I am done no? why should I care about the NIDS when I have a 
> well configured HIDS on every server?
> t
> thanks
>
> Juan
>
>
>
>
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