Does closing all ports (no listening ports) = no need for firewall?

Discussion in 'other firewalls' started by illumins, Mar 18, 2011.

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  1. illumins

    illumins Registered Member

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    Ubuntu comes without a firewall since it is preconfigured without any open ports. What about Windows XP? (assuming I am not interested in outbound protection.)

    I believe I have closed all my ports (135,137-139,445) because HiJackFree is showing no listening ports. Does this mean all my ports are closed? If so, is my computer safe from other infected computers within the network? Can my computer still be hacked into?

    (I am excluding drive-by infections or any other malware/attack caused by going on a malicious website or user error such as opening a virus. I am talking about just connecting your computer to a network (physical or wireless) or connecting to a VPN and leaving it on passively.)


    Thank you in advance.
     
  2. J_L

    J_L Registered Member

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    Ubuntu does come with a Firewall (iptables).
     
  3. TairikuOkami

    TairikuOkami Registered Member

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  4. Stem

    Stem Firewall Expert

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    Closing all ports will block such as unsolicited inbound connections(which is certainly needed for windows services), but what about inbound broadcasts?, and filtering of inbound on current outbound connections?


    - Stem
     
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