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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23 views

nftables - redirect port internally

i'm moving from windows to debian 10, and on windows i'm using portproxy to re-route a port netsh interface portproxy add v4tov4 listenport=9800 listenaddress=127.0.0.1 connectport=9078 ...
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50 views

Send remote commands with Powershell - Can't find the right port to open

I'm trying to setup my domain computers to be able to receive PS commands from the DC. I'm beginning with a very simple command (Restart-Computer) to test things, however the Windows Firewall insists ...
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Unable to change description for the `RemoteDesktop-UserMode-In-TCP` firewall rule via powershell

I'm trying to change RDP port for my Windows Server 2019 Core. I've edited the registry successfully and was able to update the port in firewall rules so that everything works: PS C:\Windows\system32&...
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Domain admin profile stuck on login to server

Thank you in advance for reading this, I appreciate it. I recently built a new AD for the company I work for. Everything was going good. All of a sudden my profile is getting stuck on welcome screen. ...
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WinRM throws Error Code 2, “Unable to check the status of the Firewall” despite EVERYTHING

I am trying to set up a source initiated event Subscription from a Windows 2019 server to a Windows 10 Client. I know that might sound backwards but I don't really have a choice for a variety of ...
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26 views

Appending to firewall rules remotely

I have one server (Windows Server 2019) that is hosted remotely. I block RDP, SQL and FTP access via IP address whitelisting. The problem is my home IP address constantly changes. My hosting provider ...
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34 views

Allow domain user to turn off Windows Defender Firewall

I need to grant all Windows Domain Users (so without elevated privileges) the ability to turn on or off the Windows Defender Firewall and to create exceptions as well. As far as I remember, I achieved ...
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35 views

How do you configure Windows firewall for selective web browsing?

I'm configuring administrative hosts in a management subnet. I've installed Chromium to enable our technology staff to be able to browse to our internal web management interfaces for administrative ...
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1answer
92 views

I've been locked out of EC2 RDP connection to my Windows 2019 Server instance after resetting firewall rules

I've been using a Windows_Server-2019-English-Full-Base-2020.12.09 EC2 instance in N.Virginia for a while and accidently got my firewall rules reset and it seems RDP port is closed and not accepting ...
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25 views

Adding inbound rules doesn't open port

I am having trouble with allowing ports to open through windows firewall. I have set inbound and outbound rules for the port 19132 and port forwarded on my router however the port does not open when ...
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359 views

Windows Server 2016 spontaneously not accepting connections

I have a production server that was working nominally until 4pm yesterday, 12/16/2020. After that time it started to reject incoming TCP connections, and connections trying to connect through ...
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Unable to access ports on Azure VM

I created a Windows VM on Azure, I was able to access it via RDP. I hosted a site on IIS and linked it to a port(8010), accessed it through localhost:8010. Then I made an Inbound filter rule on the ...
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174 views

MMC > Certificates > Other computers: Which firewall ports used for this?

I am having a windows firewall issue when trying to access the Certificate Store from another computer on the same domain using MMC or PowerShell. I am logged in as a domain admin. Both servers are ...
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Windows 10 Firewall Blocking Incoming VPN Traffic

Client accesses Windows Server file share and is successful.. [Local IP] 192.168.1.62 [VPN IP] 192.168.15.101 ---> [Server IP] 192.168.15.10 Success Server ...
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33 views

OpenVPN and Windows Firewall

I am trying to set up an Open VPN connection from my home to office. OpenVPN running on my Windows 10 computer at home to a Router with OpenVPN at the office. Connection is established and working and ...
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Is there a text-based Windows Firewall Configuration?

In Linux, you can use iptables to store/load your iptables based firewall configuration, but in Windows it appears to me that it's all GUI based, which means you can't store / track the changes you've ...
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309 views

How to disable / remove multicast completely?

On one of my Windows Servers (Windows Server Standard 2019), I'd like to remove multicast handling completely. Completely really means completely - completely ignore incoming multicast traffic, and ...
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77 views

Cannot send data from Linux VM to Windows Host

I am trying to send data packets using SOME/IP Common API from my Linux VM. However, the data is not reaching to the Windows Host application. I have tried dumping the data packets using tcpdump, what ...
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31 views

Windows Firewall blocking IPv6 FTP passive data connection despite server app being allowed

My environment: Windows 10 Professional FTP server and client apps on same machine My tests: Connect from FTP client to FTP server on [::1] (i.e. localhost) and list directory (in passive mode) with:...
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252 views

how to restrict inbound connection to mysql server to specified IP address by firewall setting

background purpose: I want to restrict inbound connection to MYSQL server only for specific host by setting inbound rules of windows firewall. I mean, I want to allow only specific host to connect to ...
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50 views

Windows 2019 server - Port closed even though it's added to firewall

I just got myself a Windows 2019 server VPS. It's unmanaged. I'm trying to open port 3307. I added the port to the firewall under ingoing tcp/udp and outgoing tcp/udp (see screenshots below). I'm ...
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84 views

How to use GPO to update an existing firewall rule?

I used the guidance found here to add a set of firewall rules to my GPO. I performed these steps: Exported all rules from my DC Imported them into my GPO Deleted the ones I didn't want Applied the ...
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241 views

Proper way to configure Windows 10 firewall for multiple users

We are deploying a Windows 10 LTSC image to multiple devices. The image configures one admin user and a second non-admin user. The non-admin user is the primary account for day-to-day use of the ...
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Windows 10 Pro Windows Firewall per user outbound rules

I would like to use the built-in Windows Firewall to prevent certain users from accessing specific ports. I am using Windows 10 Pro. Is there a way to define firewall rule on a per user basis (perhaps ...
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2answers
506 views

Windows Firewall misbehaving

I'm trying to implement Windows firewalls on our servers, and I've come across an oddity that I could do with some advice on: So I have a service listening on ports 8099-8102TCP, and a matching ...
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46 views

Securing LDAP on Server (All Public IP's)

I bought a server from OVH (Dedicated) and install 3 VM's on Vmware 6.5. On server I configured AD and other are member servers. This a temporary serve to test some 3rd party app migrations. The ...
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Windows firewall outgoing rule exception not working

I set custom outbound firewall rule on Windows Server 2019 which deny all outgoing traffic on 192.168.2.0/24. The rule is working for all until I set an exception in "Local principal/Exceptions". When ...
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14 views

All Firewall Rules deployed from Group Policy show as “Extra Registry Settings”?

Every time a new Firewall rule is added via Group Policy, it shows on the client as "Extra Registry Settings". Could someone please confirm if this is how it should show? I am staring to think that it ...
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442 views

Hardening a file-serving Windows Server 2019 instance

I'm in the process of re-configuring and securing a server for the small company that I work for. We use it to store design files and other data with Autodesk Vault. It's running on a VPS from a ...
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Windows Firewall blocking all connections after sysprep

I've applied CIS Windows Server 2019 Benchmark to a machine and then used sysprep to make it into a template. The problem is, after reboot after sysprep, or making a new image from the template, ...
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Converting an iptables rule to Windows Server Firewall

anyone knows how to write the equivalent of this rule in Windows firewall? iptables -t nat -A POSTROUTING --destination 0.0.0.0/0 -j SNAT --to <IP>
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39 views

Windows Server 2019 IP Group for Firewall

I have a couple of Windows Server 2016 and 2019 boxes and wish to add some simple rules to the Windows Defender Firewall (e.g. RDP Port, FTP Ports, etc.), allowing a group of IP addresses. I'd prefer ...
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723 views

Why Windows 10 Blocks some LAN IPs (192.168..)?

- Summarize the problem: Windows 10 does not allow visiting my local LAN IPs (192.168.1.0/24), and some domains (that are defined in my hosts file). Error shows in all browsers (e.g. form chrome: ...
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Allow computers in office to ping Windows VPN clients

We are using OpenVPN to allow employees to connect to the office network. The office uses 172.20.1.0/24, the VPN clients use 10.8.0.0/24. Our VPN server is a QNAP NAS. When connected, clients can ...
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122 views

Not able to ping the host machine (or any other machine on the network) from the linux docker container

I am using Docker Desktop Version 2.0.0.3 (31259) on my windows server 2016 machine. From the host machine(say A), I can ping to any other machine in the network(say B), but when I run a linux ...
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78 views

new azure port will not open

Some time back I created an Azure VM and needed to open some ports. I did so by creating a security group and added the appropriate inbound rules to open the ports. Also I created an inbound rule in ...
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WS2016 Firewall: Still blocking program from sending packets after creating in/outbound rules for said application

Starting config: Firewall has been set to block both in/outbound traffic by default. Minimal Core Networking rules have been enabled for NIC to get auto configured. Every other rule is disabled. So ...
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9k views

What are differnet between local port and remote port of firewall in Windows 2016 server?

I use MS SQL 2017 Express Database server in my Windows 2016 server. I hope to expose MS SQL 2017 Express Database server to the internet, so I need open 1433 port in firewall. But I find there are ...
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155 views

Server 2019 - restrict port 3389

There seem to be plenty of explanations on how to restrict port 3389 to certain IP addresses - open Firewall and the 3389 rule. Add required IP addresses to Remote IP addresses under the scope tab and ...
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1answer
621 views

Virtual network between Hyper-V host and guest VM is blocked by firewall because marked as unidentified

I have the following setup: Windows machine with Hyper-V activated Hyper-V VM under CentOS 7 using the default virtual switch as an interface between host and guest The virtual switch has 172.24.255....
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2k views

Windows Server 2016 - How to change TCP Timeout settings on open port [closed]

In Windows Server 2016: I ran a NodeJS application on port 8080 and made the port available to the public internet. (by allowing inbound TCP connections over the port 8080 in the firewall) GET ...
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997 views

Windows Firewall: allow only certain DNS servers

In my organization (which uses two network DNS servers and a local DNS resolver per laptop) I want to restrict DNS requests to only 127.0.0.1 192.168.10.201 192.168.20.2 1.1.1.1 1.0.0.1 and block ...
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3answers
973 views

How re-enable Windows Firewall when the service has been stopped and disabled without cutting yourself out?

As every Windows system administrator should know in 2019, the "Windows Firewall" service is a critical component of the Windows network stack, and it should never, ever be stopped end disabled; the ...
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352 views

Create Azure VM with Windows Firewall ports open?

I'm working on a Powershell script that will automate setting up an Azure VM, adding it to my Active Directory domain, and setting up a number of other settings. The idea is to be able to spin up and ...
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316 views

Server 2016 Domain Controller firewall configuration

I have an environment with 12 VM's all running Windows Server 2016. One is a domain controller, all others joined to the domain. When I login via RDP to any of the computers it takes 2+ minutes. Most ...
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1answer
522 views

Allow/Block specific RPC interface UUIDs using the Windows Firewall

Is it possible to block/allow certain RPC UUIDs using the Windows Firewall? For example, Active Directory domain controller replication occurs using RPC over TCP via the drsuapi and dsaop RPC ...
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3k views

Windows Server 2019 firewall advanced configuration

I have two windows 2019 servers A and B. Both have Active Directory and DNS roles installed. This setup is only used for directory service authentication by some php based web applications on port 636....
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1answer
3k views

Domain Join - The Network Path was not Found

I am unable to join PC's or servers to my domain and am unable to determine the cause... What have I tried? - Disabled Domain Windows Firewall; Changed Network Adapter from Public to Domain, Changed ...
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3k views

Windows 2012 R2 Firewall Rule apply only after reboot

I have a Windows Server 2012 R2 server with firewall activated and inbound connections in blocked by default. When i create a rule A to open port 5060 UDP to any source and then create a rule B to ...
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619 views

What port/s does VMware Workstation use to connect to a vCenter server?

We have a vCenter Server running in Windows. I am trying to connect to the vCenter server in VMware Workstation 12 via File -> Connect to Server With the Windows Firewall on, the connection times ...

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