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  1. #1
    Member Indian's Avatar
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    HOw to know what ports are open

    HI,
    I am in a Lan and looking to make a Radio Station using Shoutcast and WInamp(both are NUllSOft's product and allows u to do this ).

    Now Shoutcast uses port 8000 but I do't know whether or not this port is open in my network.How can I know this ?

    Regards

  2. #2
    Goverment property now GroundZero3's Avatar
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    i dont really like GRC but this is an easy little scanner

    https://www.grc.com/x/ne.dll?bh0bkyd2

    I like to use LANGUARD/nmap to scan networks for open ports

  3. #3
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    there are websites which can do port scans to let you know what is open

    one of them is www.grc.com and you click on "shields up" and then "all service ports ports" and it takes minute or two to scan

    also, like for port 8000, you enter the port number in that blank space and click "user specified custom port probe"

    ----

    do you have a router? if so most of your ports will show as "stealth" I would think...meaning that you are "behind a router" and it is harder for the internet to "see" your computers


    As far as opening ports I am thinking you do that through your router with "port forwarding"

    if it is just one computer hooked straight to the internet I am not sure....maybe then all the ports are open, lol


    JP
    "Even a fool is thought to be wise if he is silent"

  4. #4
    Ultimate Member J1mmy's Avatar
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    yes, being behind a router may restrict your acccess to many connections, including an FTp connection, but to check if a particular port is open you can port scan like mention previously, or since you are behind a router you can go into DMZ mode inw hich the firewall is completely deactivatied. however, i havent ever been into DMZ because of the securiy threats to your network. Unless you have a good firewall and virus scanner etc, i wouldnt recomend going into DMZ mode, but if your despirate you can give it a try....

  5. #5
    Ultimate Member TOAD6147's Avatar
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    I know this thread is old but it's apropos. I need to open ports 80, 443, 554 and 1755 in my Netgear WGR614 v.5 for Napster but the only think I can enter is a range or a single port number. Is anyone aware of a way to do this without opening all ports from 60 through 1755? I've checked GRC.com and all ports to 1075 are stealthed.
    Last edited by TOAD6147; February 28th, 2006 at 06:15 PM.
    "Education: That which discloses to the wise and disguises from the
    foolish their lack of understanding."
    Ambrose Bierce

  6. #6
    Senior Member buckaro's Avatar
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    Check your firewall, it may have an option on which ports to open...

  7. #7
    Ultimate Member famosbrown's Avatar
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    Well...without looking up any of the ports, I see you have port 443 which is usually for SSL. It's used for secure web browsing, i.e. HTTPS. If you do any online banking or any other secure transaction or work on your computer, then that port isn't closed. Secure traffic is directed thorugh that port. Port 80 is for regular web browsing (HTTP), so if you are using the PC in question to post here, then that isn't closed as well.

    Are you having issues setting up your Netscape?

    Famos

    EDIT: You can deny entry into certain ports, but at leas two of the ones you listed are open. Maybe Netscape is blocked or your router needs to be configured to use.
    Last edited by famosbrown; February 28th, 2006 at 06:18 PM.

  8. #8
    Ultimate Member TOAD6147's Avatar
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    I need to open ports 80, 443, 554 and 1755 in my Netgear WGR614 v.5 for Napster...
    "Education: That which discloses to the wise and disguises from the
    foolish their lack of understanding."
    Ambrose Bierce

  9. #9
    Goverment property now GroundZero3's Avatar
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    port 80 and 443 like famosbrown deal with webbrowsing/ssl. You shouldnt need to do anything with these two ports.

  10. #10
    Ultimate Member famosbrown's Avatar
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    Do you have any firewalls set-up? Check to see if Napster is blocked from these ports first..i.e. Windows Firewall. YOu can also use your Netgear router Basic Settings to specifically allow traffic through certain ports.

    Sorry about the Netscape...long day at work and now 5 hours of class to go through .

    Famos

  11. #11
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    How to close Port 443

    I wanted to know how to close Port 443. How can I know which program is opening the port and then switch it off

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