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Questions tagged [windows-firewall]

"Windows Firewall" refers to the built in client firewall utility that ships with the Windows operating system. (It was previously named the Internet Connection Firewall.) By default, all Windows operating systems since Windows XP and Windows Server 2003 have shipped with this client.

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Windows Server multiple ip issue

One windows server 2016 running on some ip address 1.2.3.0. It has Apache server on port 80, DNS Server and running MySql server and so on and connecting through RDP client. My requirement is to add ...
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2answers
100 views

Port forwarding not working on Google Cloud

I've created a rule in google cloud to allow inbound connections, but the port won't open. Can't connect through telnet or online port checkers. Can anyone tell me what could the issue be? I ...
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33 views

Windows Firewall protected network connections blocked by local group policy

I have a couple of Windows 2008R2 servers running as stand-alones (that is, not connected to a Domain). In Windows Firewall with Advanced Security, I'm trying to unprotect a local network connection ...
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64 views

When using netsh advfirewall firewall show I get No rules match the specified criteria

When I run this in a cmd window with admin: netsh advfirewall firewall show rule name=all dir=in | find "SSH" I get this: Rule Name: Bitvise SSH Server (UPnP) - Do not edit ...
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1answer
106 views

How to stop Windows Filtering Platform blocking ICMP packets for legitimate RDP traffic over L2TP tunnel?

RDP via Windows 2008 L2TP to Windows 10 Pro did never work flawless. The first attempt in September 2018 needed the client Cord.app to be replaced with Royal TSX on OS X 10.9.5. The remote Win10 box ...
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3answers
75 views

Adding IP Addresses to RDP firewall rule

Please understand that I have been through all the posts regarding this issue and my issue has not been resolved which is as follows: I have a brand new installation of Server 2008 R2 SP1, with all ...
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1answer
159 views

Connection refused for Java HTTP Server running on localhost

How would you investigate the following issue? On a specific server; any HTTP-Requests sent to a Java Server running on localhost fails with "Connection refused". (See the Java code here) In the ...
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1answer
119 views

Block an application from accessing the network, except for a single IP address

How would I go about preventing a specific .exe from accessing any network (TCP) resources, with the exception of 1 or 2 IP addresses? Can it be done with Windows Firewall (netsh or UI) and/or IPSec? ...
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42 views

Windows firewall with advanced security connection rule not working with IPSec

We just setup a DMZ at a new client to host a RODC and SCCM server for internet client connectivity. We created a GPO with the needed WFAS connection rules to secure communication from the internal ...
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0answers
96 views

Windows 10 firewall blocks incoming udp

I have a windows 10 machine and a device connected in the same subnet: The device is sending as unicast to my machine UDP traffic to port 18004. If I allow this port for UDP, the traffic still does ...
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42 views

Firewall policies understanding

On one PC in a Windows domain there is a firewall setup that confuses me. In the registry is the following setting: Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\...
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0answers
224 views

Safari cannot open the page because the server stopped responding

I am running Windows Server 2012 R2, and have 2 web pages running via IIS. The 1st one is on port 80 for HTTP, and the 2nd one is on port 16552 for an API interface. I have opened all the ...
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1answer
152 views

geoip block/ mass ip blocks in windows firewall [closed]

i got issue with ransomware attacks day and night from Russia/Ukraine... even with secure rdp some of them get passes now and then and make me suffer... so i want to block geo block whole Russia/...
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2answers
195 views

VPN Connection to Windows Network behind Firewall

We have a Windows network with a single Windows Server 2012 server which works domain server as well as a file server, which is protected by pfSense firewall. We want to allow a specific user (with ...
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1answer
181 views

Windows Firewall - difference between disable and “block”

In "Windows Firewall with advanced security", what is the difference between disabling a rule and setting it to "block traffic"? Besides knowing the difference, in my case I want to diminish the ...
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2answers
196 views

Server is listening in Port 110 and I can't find any way to disable or block it

I have a Windows 2012 R2 server used as web server, with ports for web (80, 443, and 8080) open for public sites hosted on it. Doing some security checks on it, I found it's listening on port 110 too: ...
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83 views

IIS on AWS Windows Server 2016 not serving to external clients

I created an AWS Windows Server 2016 instance and also allocated an elastic IP address to it. Server's running fine and I can RDP into it. I also installed IIS on it and ensured that it is running. ...
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1answer
118 views

Group Policy setting to activate Windows Firewall when not on Business Domain

I've been trying to figure out GPO settings for a couple of days and cannot figure out how to apply a filter of some sort to Windows Firewall to turn it ON when any employee is not on the domain (10.0....
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1answer
411 views

Windows Firewall: Apply local firewall rules

I have an environment where we have a GPO which we have set on all profiles to have the setting: Apply local firewall rules: No I've confirmed that the GP is applied successfully by using gpresult/...
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1answer
311 views

Cannot block port 389

I have been trying to completely shut down port 389 on windows firewall. I went into the firewall and added a rule stating to block ALL connections for TCP and UDP for the port 389(Inbound and ...
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1answer
58 views

SQL Server - Firewall Blocking Replication Even Though Port 1433 is Allowed

I have two servers, Server 1 and Server 2, both are stand-alone, Windows Server 2016 with SQL Server 2017 using default instance. They are not members of a domain, and connected over a VPN (using ...
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0answers
411 views

How-to DNAT-forward all IP traffic on Windows 10 from IP1 to IP2?

On my local machine, I want to setup a (web-)server that receives data that is sent (via http/https) to IP 65.55.44.109 (vortex.data.micorosoft.com). In order to do that, I need to forward all IP ...
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0answers
41 views

GPO setting Doesn't Reflect as SHA 256 In Windows Firewall settings

In below settings If the "Integrity" in Key Exchange (Main Mode) is selected as "SHA256", the RSOP always shows it as "MD5". This is causing issues. Computer Settings - > Policies -> Windows ...
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0answers
19 views

RDC - allow account depending on computer of requester

The posts Restrict Remote Desktop access to specific users to specific servers in a domain environment? Restrict RDP Access by IP Address explain well how to restrict access to a computer ...
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1answer
118 views

I can't create a IP whitelist for port 3306

I'm working on a Windows Server and I want to protect users from connecting to port 3306 external. To achieve this, I want to create a whitelist in the firewall. This is the tab with the selected ...
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72 views

Is there a way to monitor MSDTC connectivity between two or more computers?

In a scenario where connection (relying on MSDTC) between a server and multiple clients becomes frequently disrupted by changed firewall settings, is there a way to proactively monitor this ...
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120 views

How to clear program/service from Windows firewall rule with netsh

I want to use netsh.exe to modify an existing Windows firewall rule, to remove the "Programs" and "Services" part of the rule. In other words, I want to set it to "All programs that meet the specified ...
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1answer
106 views

Spagetti GPOs - All sort of Windows Firewall settings that ultimate disable in favor of Kaspersky

I'm on the newer side when it comes to managing GPOs. I'm trying to clean up an existing domain that is a bit of a mess, too many different folks have put their hands in here over the years, and ...
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1answer
929 views

Change External NIC to Public on Windows Server 2016

I've got a cloud network: 192.168.100.0/24 with: Pfsense GW (IPSec site-to-site) NIC1 = WAN-IP1 (fully blocked except IPSec) NIC2 = 192.168.100.1 DC (WinServer2016) NIC1 = WAN-IP2 (external) ...
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1answer
60 views

Accidental Remote Desktop Lockout. IPSec Authentication Required

I didnt find any questions like this when i searched. I messed up pretty badly, we had someone hack our system recently and in an attempt to prevent this in the future I was exploring windows ...
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0answers
454 views

Windows firewall which ports are opened for SQL Server named instance using dynamic port

In case of SQL Server named instances default configuration in to use TCP port which is dynamic and determined at the time the Database Engine starts. The SQL Server Browser service listens for ...
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1answer
668 views

Disable all inbound rules in Windows server

I'm running Windows Server 2012 R2 and I need to disable all of the inbound rules. Is there any kind of powershell script to disable the rules all at once and start from a blank canvas? I'm running ...
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1answer
68 views

Do I need to reset sensible inbound ftp rules for windows firewall (win7)

I have filezilla already installed on my machine. I have no recollection of what permissions / triggers of windows firewall it needed back when I installed it. Today, I wanted to learn how to create ...
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0answers
471 views

Enabling Network Discovery via GPO does not work when Windows Firewall turned on

Environment: Windows domain I'm trying to turn on network discovery for 100+ computers and I've created a computer-targeted GPO following instructions from this article: https://www.technig.com/...
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0answers
117 views

Firewall stuck on expand

Ive been having some issues trying to open the Windows Firewall Advanced. It just gets stuck with a "expand" window: expand image Ive been searching a lot on google trying to debug this. If i run a ...
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2answers
3k views

PowerShell: how open a Windows Firewall port

I need to open a port on Windows Firewall with PowerShell, so I do netsh advfirewall firewall add rule name = "Open port 4443 test" dir=in action=allow protocol=TCP localport=4443 and then Test-...
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1answer
223 views

Why do I see a lot of incoming netbios activity on my Windows Firewall?

I have been seeing a lot of firewall drops on port 137 and 138 (netbios) after I enabled default behavior on my Windows FW (Block incoming, Allow outgoing) What is the reason for all netbios activity ...
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2answers
23k views

Windows 10 - Disable warning notification about disabled firewall via GPO

Is there a way to disable the warning that is displayed in the notifications area, telling you that the Windows firewall is disabled? Edit: We would specifically like to achieve this via group policy,...
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1answer
695 views

Block all non VPN traffic

I’ll shortly be traveling to a country with less lenient laws regarding free speech. I have a Windows 10 machine. I want to block this machines possibility to communicate on all interfaces except ...
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2answers
586 views

How to remove Extra Registry Settings from Default Domain Policy?

For some reason, Windows Firewall was disabled on an AD domain of my client. The RSoP report shows the setting is originated from the Extra Registry Settings on Default Domain Policy. If this was on ...
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3answers
2k views

Port scanning and Windows Firewall

I am trying to understand the results I am getting when scanning ports on a machine that has an active built-in Windows Firewall. My test environment has two Windows 7 machines running in Hyper-V VMs ...
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1answer
731 views

Unable to access port 8080 externally (Windows server 2012 r2)

I have developed a web-service on Visual Studio 2015 and using MySQL DB on Windows 10. I want to deploy it on IIS. So I installed it on my Windows Server 2012 R2 by using How to Install IIS on Windows ...
0
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1answer
60 views

IIS /.Net Allow 1 Public IP to access the website exclusively

How can I grant exclusive access to my client to a website hosted at my IIS Server? Which Firewall rule shall I add his public ip? IIS: Version 7.5.7600 Server: WS2008 R2
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1answer
67 views

Using both dedicated firewall hardware plus Windows server firewall?

I'm slowly educating myself in servers for a corporate environment (still early in my IT career) I've been playing around with Windows Firewall and implemented a couple of additional inbound rules to ...
2
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1answer
1k views

Can you delete Local Firewall policies using group policy?

I want Remote Desktop on all domain computers to be only accessible from one IP. However there's a default local Allow Inbound rule for Remote Desktop on all computers that windows sets up by itself, ...
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1answer
137 views

Windows network shares still visible (and accessible) with “file and printer sharing” deactivated

I just migrated a windows server VPS to a new one (Windows Server 2012 R2) and realized that even though "Turn off file and printer sharing" is selected for all available network profiles (Public/...
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0answers
221 views

Windows Filtering Platform events written while the firewall is off

Is it normal to get Windows Filtering Platform events in the Event Log while the firewall is off? I'm on Windows Server 2008 R2 Service Pack 1. For example, I'm getting multiple 5156 events like this:...
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0answers
40 views

SQL mirror server doesn't connect after reboot with Windows Firewall enabled

I am trying to get database mirroring working properly in high safety mode with automatic failover. I have named instances of SQL Server 2014 installed on Windows Server 2012 R2 for my principal and ...
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2answers
56 views

Windows firewall and network connections

I am disabling firewall for private network connection, but firewall still working on it. What else should I do to disable firewall on private network connection?
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0answers
1k views

Usermode Font Driver Host keeps changing Windows 10 firewall rules

Upon every reboot, the 'Usermode Font Driver Host' on our Windows 10 (Enterprise) machines is changing firewall rules. It removes the 2 existing rules related to itself, then creates 2 new ones with ...