[fw-wiz] RE: Help. How to stop attacks on gateway/linux host.

From: Yesh Sriram (ysriram_at_elorasoftindia.com)
Date: 12/13/04

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    To: firewall-wizards@honor.icsalabs.com
Date: Mon, 13 Dec 2004 11:28:05 +0530

    Sir/Madam,
    We are a small software business (mostly Java developers) located in
    CHENNAI/INDIA. We have a machine running Linux/Redhat to
    which all our computers connect for internet access through a DSL/Modem
    with static IP. We use the static IP to host demonstration for customers.

    For the last 6 months our DSL bills are extremely high. We examined our
    logs and there is someone using the bandwidth from
    our host every night. We can turnoff the machine but not sure if this is
    the right solution.

    We have done the following (for the last three months)
    - Change passwords every 3 days
    - Run only http, https, ssh
    - Disable ftp

    But we still continue to see the nightly breaks into our host machine.
    We have no Linux expertise except as developers.
    We checked out firewall software price and it's expensive, and there is
    no expert support available. Can someone
    suggest a fix for this. Even a policy fix/advice would be helpfull.

    We will be extremely gratefull for the support.

    Regards
    Yesh Sriram
    EloraSoft India Pvt. Ltd.

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