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Is port 443 suppose to be open by default in windows 8.1 pro? RRS feed

  • Question

  • Hi, recently updated to the new windows 8.1 pro 64bit OS. I try to run a Port test in ShieldsUp website and was inform that port 443 was open. Is port 443 suppose to be open by default in windows 8.1 pro? Because even I restarted my PC, it still shown as port 443 open. I'm a bit phobia to use my credit card to purchase after seeing that port 443 is open. It seem that not only my desktop pc is affected but all 2 notebook which upgrade to windows 8.1 pro also suffer the same port 443 open issue. Please advise so that I can clear my doubt, regards.
    Thursday, March 6, 2014 2:45 PM

Answers

  •  Is port 443 suppose to be open by default in windows 8.1 pro? 

    The answer is no.. To open a port, a process/application should be installed and configured to listen to port 443.. Typically if you are using a web server with https/teamviewer/skype there is possibility to see  443 port is opened..

    --------------------------------------------------------------------------------------------------------

    How to check what application is holding port 443? 

    Open a command prompt and type

    netstat -ao

    Then you can grab the PID which holds port 443.. 

    Then open task manager and enable pid and you can see what is the process..

    Mine it is skype.. Yours could be same or something else... 

     

    Hetti Arachchige V Aravinda | Network & System Administrator (B.Sc, Microsoft Small Business Specialist, MCP, MCTS, MCSA, MCSE,MCITP, CCNA, CEH, MBCS)



    • Edited by Aravindaiud Thursday, March 6, 2014 3:43 PM
    • Proposed as answer by ZigZag3143x Friday, March 7, 2014 1:18 AM
    • Marked as answer by Yolanda Zhu Monday, March 17, 2014 8:56 AM
    Thursday, March 6, 2014 3:39 PM
  • Do you have a router?

    If so, maybe your router has port 443 open so that you can reconfigure it from anywhere on the network.  It's what's directly listening to the outside internet, after all, not your computer.

    That sounds like a bad idea to me, though it obviously could have a use.  *I* don't personally have a use for it, so I disabled that feature in my router so that there's no chance someone could hack in and take control of my router.

    You may have a completely different brand router, but this is the configuration in my Cisco model that does the trick:

     

     

    -Noel


    Detailed how-to in my eBooks:  

    Configure The Windows 7 "To Work" Options
    Configure The Windows 8 "To Work" Options

    • Proposed as answer by Noel Carboni Tuesday, March 11, 2014 12:44 AM
    • Marked as answer by Brandon Records Tuesday, October 14, 2014 2:43 PM
    Friday, March 7, 2014 1:35 AM

All replies

  •  Is port 443 suppose to be open by default in windows 8.1 pro? 

    The answer is no.. To open a port, a process/application should be installed and configured to listen to port 443.. Typically if you are using a web server with https/teamviewer/skype there is possibility to see  443 port is opened..

    --------------------------------------------------------------------------------------------------------

    How to check what application is holding port 443? 

    Open a command prompt and type

    netstat -ao

    Then you can grab the PID which holds port 443.. 

    Then open task manager and enable pid and you can see what is the process..

    Mine it is skype.. Yours could be same or something else... 

     

    Hetti Arachchige V Aravinda | Network & System Administrator (B.Sc, Microsoft Small Business Specialist, MCP, MCTS, MCSA, MCSE,MCITP, CCNA, CEH, MBCS)



    • Edited by Aravindaiud Thursday, March 6, 2014 3:43 PM
    • Proposed as answer by ZigZag3143x Friday, March 7, 2014 1:18 AM
    • Marked as answer by Yolanda Zhu Monday, March 17, 2014 8:56 AM
    Thursday, March 6, 2014 3:39 PM
  • Thanks. I just did a netstat -ao but unfortunately no port 443 is listed as listening in the local address. Please advise, regards.
    Friday, March 7, 2014 1:08 AM
  • PH73

    Did you read Gibsons description of what port 443 is and the considerations for leaving it open?

    https://www.grc.com/port_443.htm


    Wanikiya and Dyami--Team Zigzag

    Friday, March 7, 2014 1:18 AM
  • WYSIWYG

    So that's it... 
    what way you verified that port is opened? I mean using your public IP?  what is the exact url of this ShieldsUp website ?

    Being in another pc, that can reach your pc that you suspect 443 is opened, you can do a local port scan.. https://www.radmin.com/download/previousversions/portscanner.php It will locally check the ports are opened in remote local computer in your network.. 

    PS: I have just seen Zigzag's reply


    Hetti Arachchige V Aravinda | Network & System Administrator (B.Sc, Microsoft Small Business Specialist, MCP, MCTS, MCSA, MCSE,MCITP, CCNA, CEH, MBCS)


    Friday, March 7, 2014 1:22 AM
  • Do you have a router?

    If so, maybe your router has port 443 open so that you can reconfigure it from anywhere on the network.  It's what's directly listening to the outside internet, after all, not your computer.

    That sounds like a bad idea to me, though it obviously could have a use.  *I* don't personally have a use for it, so I disabled that feature in my router so that there's no chance someone could hack in and take control of my router.

    You may have a completely different brand router, but this is the configuration in my Cisco model that does the trick:

     

     

    -Noel


    Detailed how-to in my eBooks:  

    Configure The Windows 7 "To Work" Options
    Configure The Windows 8 "To Work" Options

    • Proposed as answer by Noel Carboni Tuesday, March 11, 2014 12:44 AM
    • Marked as answer by Brandon Records Tuesday, October 14, 2014 2:43 PM
    Friday, March 7, 2014 1:35 AM
  • PH73

    Did you read Gibsons description of what port 443 is and the considerations for leaving it open?

    https://www.grc.com/port_443.htm


    Wanikiya and Dyami--Team Zigzag

    Yes . Port 443 is for https.
    Friday, March 7, 2014 2:13 AM
  • WYSIWYG

    So that's it... 
    what way you verified that port is opened? I mean using your public IP?  what is the exact url of this ShieldsUp website ?

    Being in another pc, that can reach your pc that you suspect 443 is opened, you can do a local port scan.. https://www.radmin.com/download/previousversions/portscanner.php It will locally check the ports are opened in remote local computer in your network.. 

    PS: I have just seen Zigzag's reply


    Hetti Arachchige V Aravinda | Network & System Administrator (B.Sc, Microsoft Small Business Specialist, MCP, MCTS, MCSA, MCSE,MCITP, CCNA, CEH, MBCS)


    Hi, I using https://www.grc.com/x/ne.dll?bh0bkyd2 to scan port which indicate port 443 is opened. However by using the local port scan using Advance Port scanner 1.3, the only open port is 135, 139 and 445. Please advise, regards.
    Friday, March 7, 2014 2:14 AM
  • Do you have a router?

    If so, maybe your router has port 443 open so that you can reconfigure it from anywhere on the network.  It's what's directly listening to the outside internet, after all, not your computer.

    That sounds like a bad idea to me, though it obviously could have a use.  *I* don't personally have a use for it, so I disabled that feature in my router so that there's no chance someone could hack in and take control of my router.

    You may have a completely different brand router, but this is the configuration in my Cisco model that does the trick:

     

     

    -Noel


    Detailed how-to in my eBooks:  

    Configure The Windows 7 "To Work" Options
    Configure The Windows 8 "To Work" Options

    Currently, I using 2wire 2701HGV-E, PACE A5520N and Asus N15U router.  I will do a check whether any of the router have remote management enable. Will feedback as soon as possible.
    Friday, March 7, 2014 2:17 AM
  • Local port scan results you should believe.. So that's it.. As Noel explained it could be a router... If you don't want you may disable it by login to router... 

    And just to make sure shut down all the computers in your premises that you suspect 443 is opened but keep router turned on.. Find a laptop or something and go to aforementioned website and try to scan ports.. I believe it should still show the result as 443 is opened... 

    So it is clear? 


    Hetti Arachchige V Aravinda | Network & System Administrator (B.Sc, Microsoft Small Business Specialist, MCP, MCTS, MCSA, MCSE,MCITP, CCNA, CEH, MBCS)

    Friday, March 7, 2014 2:17 AM
  • Local port scan results you should believe.. So that's it.. As Noel explained it could be a router... If you don't want you may disable it by login to router... 

    And just to make sure shut down all the computers in your premises that you suspect 443 is opened but keep router turned on.. Find a laptop or something and go to aforementioned website and try to scan ports.. I believe it should still show the result as 443 is opened... 

    So it is clear? 


    Hetti Arachchige V Aravinda | Network & System Administrator (B.Sc, Microsoft Small Business Specialist, MCP, MCTS, MCSA, MCSE,MCITP, CCNA, CEH, MBCS)

    So I can take it as port 443 as close with local port scan result given by advance port scanner. So I should look at  the router side. Could it be I enable samba usb HDD in Asus n15u? Regards.
    Friday, March 7, 2014 3:07 AM
  • Your initial concern was "Is port 443 suppose to be open by default in windows 8.1 pro?"

    The answer is no..

    You may go ahead and and play around in the router and disable 443 if needed.. 


    Hetti Arachchige V Aravinda | Network & System Administrator (B.Sc, Microsoft Small Business Specialist, MCP, MCTS, MCSA, MCSE,MCITP, CCNA, CEH, MBCS)


    Friday, March 7, 2014 3:27 AM
  • Hi, recently updated to the new windows 8.1 pro 64bit OS. I try to run a Port test in ShieldsUp website and was inform that port 443 was open. Is port 443 suppose to be open by default in windows 8.1 pro? Because even I restarted my PC, it still shown as port 443 open. I'm a bit phobia to use my credit card to purchase after seeing that port 443 is open. It seem that not only my desktop pc is affected but all 2 notebook which upgrade to windows 8.1 pro also suffer the same port 443 open issue. Please advise so that I can clear my doubt, regards.
    u should close UPnP on your router I just replaced m crap netgear for a Linksys wrt54gl. ran the su test and got the same results port 443 wide open. running tomato fw on the router unticked UPnP and voila! all ports pass su test and I also clocked the router to 250ghz and bumped up my output signal by 30%
    Friday, October 3, 2014 1:04 AM
  • Hi, recently updated to the new windows 8.1 pro 64bit OS. I try to run a Port test in ShieldsUp website and was inform that port 443 was open. Is port 443 suppose to be open by default in windows 8.1 pro? Because even I restarted my PC, it still shown as port 443 open. I'm a bit phobia to use my credit card to purchase after seeing that port 443 is open. It seem that not only my desktop pc is affected but all 2 notebook which upgrade to windows 8.1 pro also suffer the same port 443 open issue. Please advise so that I can clear my doubt, regards.

    port 443 is usually used by HTTPS so you must be using some web server, likely from some live tile in the Start screen



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    Friday, October 3, 2014 1:39 AM
  • Hi, recently updated to the new windows 8.1 pro 64bit OS. I try to run a Port test in ShieldsUp website and was inform that port 443 was open. Is port 443 suppose to be open by default in windows 8.1 pro? Because even I restarted my PC, it still shown as port 443 open. I'm a bit phobia to use my credit card to purchase after seeing that port 443 is open. It seem that not only my desktop pc is affected but all 2 notebook which upgrade to windows 8.1 pro also suffer the same port 443 open issue. Please advise so that I can clear my doubt, regards.

    port 443 is usually used by HTTPS so you must be using some web server, likely from some live tile in the Start screen




    Yes, 443 is for HTTPS but the rest of your post makes no sense. It has already been established in this thread (by running the netstat command) that 443 is actually not open on the OP's computer so he is not "using some web server, likely from some live tile in the Start screen" (which doesn't even make any sense since Live Tiles consume and display content, they do not serve content). The open port is on the OP's Internet facing router. All you had to do was to read the thread prior to responding.
    Friday, October 3, 2014 11:08 AM
  • the OP can check windows features to see if IIS is enabled

    as for the router, I need the specific make and model of hardware in use



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    Place your rig specifics into your signature like I have, makes it 100x easier!

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    Friday, October 3, 2014 11:55 AM
  • the OP can check windows features to see if IIS is enabled

    as for the router, I need the specific make and model of hardware in use





    You're in over your head again. If IIS were installed then the netstat command would have shown 443 as open and listening. It did not. How many ways do I have to say this, the issue is not with 443 being open on the OP's PC, it is on the OP's router. Also, please explain to us what having IIS installed has to do with a Live Tile? Nothing you've contributed here makes any sense.

    As far as the router goes, you don't need anything as this thread was answered back in March. There's really no need for you to be even involved in this thread at this point in time. However, if for some reason you feel the need to know what router is being used then I strongly suggest that you actually READ the thread.

    Friday, October 3, 2014 12:05 PM