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  1. #1

    * free anti flood ?

    hey guys
    does anybody have a free , effective and powerfull anti flood software??!!

    I need one , to prevent DDos , Dos and Syn flood at least

  2. #2
    Join Date
    Jun 2003
    World Wide Web
    I think APF firewall has a built in antidos feature. Also, you might as well compile your kenel with SYN cookies which will help prevent SYN flooding.
    In addition to these, you could also, drop continous connections from a source ip by using the --limit chain in iptables, if it exceeds x number of connections per second.

    and sample chain would look like :

    /sbin/iptables -A INPUT -p icmp --icmp-type 8 -m limit --limit 1/second -j ACCEPT

    I hope it was helpful. Thanks.

    Vivek Prasannan

  3. #3
    For DDos you can't even buy one.
    Look at SCO they were DDoS and could not do anything about it, even with all that Microsoft Funding.
    Datums Internet Solutions, LLC
    Systems Engineering & Managed Hosting Services
    Complex Hosting Consultants

  4. #4
    Join Date
    Mar 2003
    California USA
    Its not possible to completely block a dos, a friend of mine was talking about a system he was working on which would virtually make it impossible to dos using intelligent routing and such but that requires several boxes
    Steven Ciaburri | Proactive Linux Server Management -
    System Administration Extraordinaire | Follow us on twitter:@Rack911Labs
    Managed Servers (AS62710), Server Management, and Security Auditing. - Security notices for the hosting community.

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