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Free network sniffer

  • December 20, 2004 at 10:33 am

    #102316

    Does anyone know of a good, free, safe network sniffer I can install on a work station?

    Gregory A. Larsen, MVP

  • December 20, 2004 at 10:46 am

    #534506

    Have a look at http://www.ethereal.com/ but to really make it work will depend on what do you want to accomplish an how your network is setup

     

    HTH

     


    * Noel

  • December 20, 2004 at 11:19 am

    #534509

    Thank you for bringing this to my attention.  I wonder about products that are still in beta.  Who wants to provide an opinion as to whether they would install this product into their environment?

    Gregory A. Larsen, MVP

  • December 20, 2004 at 12:03 pm

    #534515

    This is of course only for the security of your network, hm?

    Just in case you are familiar with VC++, there is or at least was a nice tool with its source code available here: http://www.codeproject.com/tools/Sniffer.asp

    If not, you might find many useful informations here: http://www.insecure.org/tools.html

    --
    Frank Kalis
    Microsoft SQL Server MVP
    Webmaster: http://www.insidesql.org/blogs
    My blog: http://www.insidesql.org/blogs/frankkalis/[/url]

  • December 21, 2004 at 1:44 am

    #534575

    "Have a look at http://www.ethereal.com/ but to really make it work will depend on what do you want to accomplish an how your network is setup"

     

    very good tool, I have used it to build screen-scrape programs and debug some network software.

     

    as for the "Beta" well....  Open Source projects often tend to call them "Beta" and 0.xx.xx for a *LONG* time.

    IMHO  Ethereal is very stable and does the job.

  • December 21, 2004 at 3:42 pm

    #534692

    I've used Ethereal on and off for about 4 years now. In each of the 3 locations I've worked at the in-house network staff has used this product exclusively for intra-site and some inter-site 'sniffing'. I've never seen it do harm to a up to date PC (although it's usually installed on a laptop for portability). Hope this helps.

    RegardsRudy KomacsarSenior Database Administrator"Ave Caesar! - Morituri te salutamus."

  • December 22, 2004 at 8:14 am

    #534767

    Jumping on the bandwagon here... Ethereal is far and away the best free one out there that I've seen. The latest version may be in beta, but Ethereal has been around a while in both the Windows and *nix environments. Nowadays when I need to break out a packet sniffer (like yesterday), it's the tool I use.

    K. Brian Kelley
    @kbriankelley

  • December 22, 2004 at 12:11 pm

    #534812

    Looks like a number of you see that the Ethereal product is stable, and safe to install.  Thank you for your advice and information.  Think I will download this product.

    Gregory A. Larsen, MVP

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