On Wed, 11 Apr 2001, reda hicham wrote:

> Anyone has informations about free sniffers and/or anti-Sniffers
> softwares.

a) NO HTML MAIL PLEASE! it's unreadable by more people than you can
imagine. please check your MUA (mail client) preferences and make sure
mail goes out in plain text, not HTML.

b) sniffers:
take your pick .. personally i like ethereal for a GUI version. works on
windows and UN*X. has a great bunch of protocol decodes.

http://www.ethereal.com/

i also use 'dsniff' a lot on UN*X to analyze a lot of networks. it comes
with a very nice set of tools for network monitoring.

http://www.monkey.org/~dugsong/dsniff/

and of course tcpdump:

http://www.tcpdump.org/

c) antisniffers:

i use either sentinel:

http://packetstorm.securify.com/UNIX/IDS/sentinel/sentinel-0.8.tar.gz
or (unrechable by me right now)
http://www.subterrain.net/projects/sentinel

or antisniff:

http://www.securitysoftwaretech.com/antisniff/

i hope this helps.

____________________________
jose nazario                                                 [EMAIL PROTECTED]
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                                       PGP key ID 0xFD37F4E5 (pgp.mit.edu)

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