RE: Detect Network Sniffing

["David Gillett" <gillettdavid () fhda edu>]

  ARP poisoning can be part of the mix when someone *without infrastructure
admin access* tries to sniff traffic on a switched network.  ARP poisoning
isn't needed by a sniffer who has admin access to the infrastructure, or on
a shared-media network.

  If, as an admin, you want to protect your users from sniffing by
intruders, then ARP poisoning is one of the things you should watch for.

David Gillett


-----Original Message-----
From: phillip () bailey st [mailto:phillip () bailey st]
Sent: Tuesday, November 08, 2011 13:52
To: security-basics () securityfocus com
Subject: Re: Detect Network Sniffing

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On 11/08/2011 01:11 AM, Dagni McPhee wrote:
> Is there any way to detect if a sniffer is being used to analyze my
> traffic before it gets onto the Internet? Also is it required for a
> sniffer to have an IP address or can it sniff while remaining
> "uncontactable" on the network?
>
> ----------------------------------------------------------------------
> -- 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;e13b6be4
> 42f727d1
>
> ----------------------------------------------------------------------
> --

Hello,

if the sniffing is done through arp poisoning, you can install arpwatch.
A daemon for monitoring Address Resolution Protocol traffic anomalies and
sending email alerts.

https://secure.wikimedia.org/wikipedia/en/wiki/Arpwatch

Best,
Phillip

- --
www.bailey.st
IM: p0bailey () jabber ccc de
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------------------------------------------------------------------------
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;e13b6be442f727
d1
------------------------------------------------------------------------


------------------------------------------------------------------------
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;e13b6be442f727d1
------------------------------------------------------------------------