IPFW Problem

steve_at_drifthost.com
Date: 09/30/04

  • Next message: Mark Jayson Alvarez: "Anyone here already configured wine on freebsd?? Help me please" 
    Date: Thu, 30 Sep 2004 16:33:18 +1000 (EST)
To: freebsd-questions@freebsd.org

    Hi,

    I am tryin to setup my Firewall on my server, so far i have the following.

    ===========================================================
    oif=bge0
    fwcmd=ipfw

    $fwcmd -f flush

    $fwcmd add check-state

    $fwcmd add allow ip from any to any via lo0
    $fwcmd add deny ip from any to 127.0.0.0/8

    $fwcmd add deny all from any to any frag in via $oif

    $fwcmd add allow tcp from any to me
    21,25,26,53,110,143,443,465,953,993,995,2082,2083,2086,2087,2089,2095,2096,2627,6666,40000-49452
    in via $oif keep-state setup
    $fwcmd add allow tcp from any to me 80 setup keep-state
    $fwcmd add allow udp from me 53 to any keep-state
    $fwcmd add allow udp from any to any 53 keep-state

    $fwcmd add allow all from me to any out via $oif setup keep-state

    $fwcmd add deny all from any to any 137,138,139,67,68 in

    $fwcmd add deny log all from me to any 22
    $fwcmd add deny log all from any to any
    ======================================================

    When i turn the firewall on i am getting this in my /var/log/security

    ========================================================
    Sep 30 16:30:48 inertia kernel: ipfw: 1200 Deny TCP SOMECLIENT:2858
    MYIP:80 in via bge0
    Sep 30 16:30:48 inertia kernel: ipfw: 1200 Deny TCP SOMECLIENT:2864
    MYIP:80 in via bge0
    Sep 30 16:30:48 inertia kernel: ipfw: 1200 Deny TCP SOMECLIENT:2858
    MYIP:80 in via bge0
    Sep 30 16:30:48 inertia kernel: ipfw: 1200 Deny TCP MYIP:80
    SOMECLIENT:1431 out via bge0
    Sep 30 16:30:49 inertia kernel: ipfw: 1200 Deny TCP MYIP:80
    SOMECLIENT:2694 out via bge0
    Sep 30 16:30:49 inertia kernel: ipfw: 1200 Deny TCP MYIP:80
    SOMECLIENT:3059 out via bge0
    Sep 30 16:30:49 inertia kernel: ipfw: 1200 Deny TCP MYIP:80
    SOMECLIENT:33077 out via bge0
    Sep 30 16:30:49 inertia kernel: ipfw: 1200 Deny TCP MYIP:80
    SOMECLIENT:33130 out via bge0
    ==============================================================

    I am unsure to why i am getting theses, its like the check-state command
    is half working..

    I can still browse my web server fine but im still getting theses messages.

    Anyone got any ideas?

    Thanks
    Steve

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