Windows 10: Nmap shows port 135 and 5357 open even after Firewall rule.

Discus and support Nmap shows port 135 and 5357 open even after Firewall rule. in Windows 10 Ask Insider to solve the problem; So I tweaked the Windows Firewall rules but nmap still shows that port 135 (DCOM) and port 5357 (Network Discovery, which I also disabled in settings)... Discussion in 'Windows 10 Ask Insider' started by /u/IramDei, Oct 24, 2020.

  1. /U/IRAMDEI
    /u/IramDei Win User

    Nmap shows port 135 and 5357 open even after Firewall rule.


    So I tweaked the Windows Firewall rules but nmap still shows that port 135 (DCOM) and port 5357 (Network Discovery, which I also disabled in settings) is still open.

    How can I reliably shut these ports? Please help!

    submitted by /u/IramDei
    [link] [comments]

    :)
     
    /u/IramDei, Oct 24, 2020
    #1
  2. CALEDON KEN
    Caledon Ken Win User
    Caledon Ken, Oct 24, 2020
    #2
  3. JEFF HERR
    Jeff Herr Win User
    Windows Firewall issue with outbound rule

    Task = use Windows Firewall to implement security which requires that it operate on its rules properly.

    Domain = Yes, hence that original statement regarding "adding a new A/D site" where A/D = ActiveDirectory = Domain environment

    I have a rule that says allow port 135, and I have a log entry saying port 135 traffic was dropped. These two things should never happen at the same time.
     
    Jeff Herr, Oct 24, 2020
    #3
  4. TWUTU
    TwuTu Win User

    Nmap shows port 135 and 5357 open even after Firewall rule.

    Windows Firewall: Doesn't show blocking rules

    Hello!

    Today I've blocked all connections of a program by creating a outbound rule in Windows Firewall. However, I now wish to remove it. The problem: I can't find that newly created rule anywhere in the list. The rule does take an effect, since deactivating the
    Firewall lets the program run properly. I can only see rules in the list that "allow" stuff, but not those who block things.

    What I have tried so far:

    - All filters set to "Show all" within the Firewall

    - Created the same rule again, doesn't show up

    - Created a rule that allows the program, shows up

    Any solutions?
     
    TwuTu, Oct 24, 2020
    #4
Thema:

Nmap shows port 135 and 5357 open even after Firewall rule.

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