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Thread: What does this port do??

  1. July 1st, 2002, 08:39 PM #1
    Flatline
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    What does this port do??

    I just re-installed my os, which is Windows 2000 Advanced serverl. I did a full port scan and it tells me that I have several ports open. I know what all of them are but one. port 1025, which is "Network Blackjack".

    I was wondering if anyone could tell me what Network Blackjack is and what it does. Any help would be appreciated.
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  2. July 1st, 2002, 08:55 PM #2
    ammo
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    1025 is simply the first port dynamically assigned... 99% of the time that has nothing to do with "network blackjack"...

    If you want to know what process is using which open port, I suggest you use "fport" from foundstone (www.foundstone.com)..

    Ammo
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  3. July 1st, 2002, 08:55 PM #3
    nebulus200
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    This isn't the program I was thinking of, but it would still accomplish the same thing:

    http://www.sysinternals.com/ntw2k/freeware/tdimon.shtml

    Run it and see what program is actually using that port, then you might have a better idea of what is going on...

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  4. July 1st, 2002, 09:02 PM #4
    KorpDeath
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    Originally posted here by ammo
    1025 is simply the first port dynamically assigned... 99% of the time that has nothing to do with "network blackjack"...

    If you want to know what process is using which open port, I suggest you use "fport" from foundstone (www.foundstone.com)..

    Ammo
    Not so....Well known ports are those from 0-1024
    Registered ports are those from 1024-49151
    Dynamic ports are those from 49152-65535

    Other then that, correct. Sorry for being picky.
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  5. July 1st, 2002, 09:08 PM #5
    ammo
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    aren't ports in the 1024-5000 ranged assigned dynamicaly by RPC?

    Ammo

    (http://www.iana.org/assignments/sun-rpc-numbers)
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  6. July 1st, 2002, 09:21 PM #6
    KorpDeath
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    With portmapper any port can be "dynamic". Be careful with Sun specific anything. Sometimes they have their own idea of what standards should be.

    Not that it's that big of a deal.
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  7. July 1st, 2002, 09:23 PM #7
    ammo
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    well then I don't understand your definition of "dynamic" vs "registered"... Please enlighten me..

    Ammo

    Precision: I didn't mean that port 1025 is labeled as dynamic in the RFCs, I just meant that it happened to be the first port availible (not registered in windows's RPC) when the kernel was asked for any port... Hence my saying "dynamically assigned"

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  8. July 1st, 2002, 09:39 PM #8
    KorpDeath
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    Better than me explaining, see here ->> http://www.good-stuff.co.uk/useful/portfull.html


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  9. July 1st, 2002, 09:45 PM #9
    ammo
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    Hum, you'll have to refere me to the exact rfc where this is said because that link explained nothing.

    (I'm basing my info on rfc1700)

    Ammo
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