Windows Firewall is a basic port filter built into the Windows OS.

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Windows firewall - block all incoming connections enable/disable - CREATE SCRIPT

Is it possible to create script which enable/disable the first checkbox of windows 7 firewall settings (Block all incoming connections....)?
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Windows Firewall fails to launch, error 5 - like KB943996, but fix not working

Environment Windows 7 Professional SP1 PL, domain-joined. Problem Since 2014-06-12, several of our computers (but definitely not all, not yet at least) embraced a problem with printer sharing, ...
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Setting Windows Firewall To Default To “Block All” Bottlenecks Internet

I have been concerned lately with the number of programs that have been transmitting data on my machine, so in attempt to halt all unwanted communication I set the Windows firewall state to block ...
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Firewall Block all outgoing connection

I want to block all outgoing connection. I have created a custom rule: C:\Windows\System32\netsh.exe advfirewall firewall add rule name="blockout" dir="out" action="block" enable="no" ...
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how does the software firewall affect the hardware network card?

I am waking my computer up by sending magic packets. But if I close UDP port 9 from windows firewall, my computers is not booting. And also, the lights on ethernet port are off. It looks little too ...
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Windows firewall - what order is used?

I setup a 2012 server with some extra bits a few days ago. Seems that there are 17 ports open to the free world now. I want to only permit access to these ports from a specific range of IP addresses. ...
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Block packets by size in Windows

currently I am receiving an attack against one of my services running on Windows Server 2008 R2 with malicious UDP packets all of a specific length. I have tried dropping these packets with a plugin ...
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58 views

Unable to change Windows Firewall settings

I am unable to access the settings for Windows Firewall on my Windows 7 32-bit computer. I go to System and Security (Start > Control Panel > System and Security) and click on Windows Firewall, but ...
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76 views

Windows Firewall inbound rules still blocks ports

I applied inbound rules for port: 1935, as well as outbound. When I check on canyouseeme.org, it says it (port 1935) times out. When I completely turn off Windows 7's firewall, it works without a ...
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143 views

Opening port 8080 on Windows firewall

I am not sure if I am just missing a trick here and it will be something rather simple, or if I am trying to do something that just isn't going to work.. Anyway, I have an asp.net site and I am using ...
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The Windows Firewall won’t run on startup

For some reason, the Windows (7) Firewall will not run on startup. When the security center starts, it reports that the firewall is not running and prompts me to start it. I click the flag to start it ...
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199 views

Can't remote desktop into my computer if firewall is running

Both are Windows 8.1 in local network. Remote access is enabled, firewall rule is enabled: Nevertheless, I am unable to RDS into this computer if firewall is running. I can RDS into if I turn of ...
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66 views

How to block all applications from accessing a connection in Windows 7 firewall?

I consider myself quite tech-savy but this one gives me real pain. I've connected to VPN through PPTP and I'm attempting to set up firewall rules to block any application from using it. Essentially, ...
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48 views

Windows Firewall: Limit Google Chrome to only local network connections

By local network, we mean within the subnet of the computer in question. The idea is to disallow browsing of internet web pages, while allowing ones served locally. Disallowing a particular local ...
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Windows Firewall: how to block all internet traffic except ones to/from Windows Update and Antivirus update?

Should it be done via block all except Windows Update & AV Update internet IP addresses; or block all except Windows Update & AV programs (is this possible to do?) If so, how? And if ...
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If you block an .exe file in Windows Firewall, are you also blocking the .dll files it uses or it needs to be done separatly?

Let's consider this scenario: There's some X software downloaded from the internet with one .exe file and several .dll files. The .exe file is prevented from accessing the Internet by using Windows ...
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57 views

Wifi Router Not Working While Windows Firewall Is On

I buy a Wifi Router and setup. All is running good, but just 3 issues: Issue No 1. On my pc (Local server) I edit host file like below: 127.0.0.1 example.com so, on my browser, if I enter ...
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92 views

Unable to surf with Ease due Certificate Requirement or virus

I am trying to surf the internet but for any link which I type or enter, I get the following message : This Connection is Untrusted You have asked Firefox to connect securely to accounts.google.com, ...
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Firewall issues with GBRIDGE = spawning another executable file

So i'm just trying out GBRIDGE .. I'm using windows firewall only, w/ windows firewall notifier app on my Win7 machine.. I have added the GBRIDGE exe to my firewall exemptions: C:\Program Files ...
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540 views

Firewall setup for ftp traffic on Windows Server

I have a Windows Server 2012 R2 which needs to retrieve some files through FTP from a different device. If I turnoff the firewall completely, the transfer is successful. With the firewall up, the ...
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23 views

Can a Windows program tell if it is in the firewall rules?

Of course no program should be able to add itself but are the firewall rules readable by non-privileged applications? I have an application which needs to be added to the rules for a special ...
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3answers
999 views

Allow dropbox through windows firewall when everything else is blocked

Using this solution I've blocked all internet access with windows firewall and made an exception to allow local subnet traffic through the firewall. How would I allow dropbox through the firewall as ...
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Windows Firewall rules priority

I can not understand how to order the windows firewall rules. I have a "allow" inbound rule to a specific program and TCP port to all the network. Than I want to block just one ip address to the ...
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Finding out who enabled the firewall

I'm trying to find out which process or user changed the firewall from Off to On. So I've issued a query to LogParser: SELECT timegenerated, EXTRACT_TOKEN(Strings,1,'|') AS Domain, ...
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47 views

Inbound Firewall Rule Not Allowing Traffic When Program Specified

I am trying to establish a firewall rule that allows incoming traffic to my application. However, the rule does not appear to be allowing the traffic as desired. I am using netsh to establish the ...
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99 views

Is there a limit to the number of IP addresses for a Windows Firewall rule's Scope?

I've got a Powershell script that adds IP addresses trying to run brute force attacks on my server to a firewall rule that blocks them from accessing it. Recently it stopped working, and started ...
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320 views

How to Block ALL incoming/outgoing internet traffic EXCEPT streaming to an Xbox?

How can I block all incoming/outgoing internet traffic except streaming to an Xbox 360? For the past few weeks, streaming video files from my PC to my Xbox 360 has started failing, with the videos ...
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Does Windows Firewall have a log?

I am trying to set my router to forward three of my ports for EchoLink. But I'm having trouble with it. I'm Using the PFPortChecker to see if the ports are open, it says they aren't, but to check my ...
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206 views

I can ping a Windows XP PC with the firewall off but I can't when the firewall is on. Why?

For the ping command, I have read (e.g. try this link), there's no port required. Yet I have a PC on my network which I cannot ping. Strangely, I can connect to using Remote Desktop. However, I am ...
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80 views

New Desktop Computer, Internet SLOW but We pay for 65mbps

I'm so confused, my internet on my new lenovo k450 is incredibly slow, speed test is reading 1.15mbps (on average). We pay for 65mbps (I believe) with comcast - this is what the connection speed ...
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215 views

Does Windows 7 re-enable Windows Firewall after removing from domain?

We have the following GPO's configured for our default domain policies: Computer Configuration\Policies\Windows Settings\Security Settings\Windows Firewall with Advanced Security\Domain Profile ...
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41 views

How to check company firewall

I am trying to ping to an external APIs IP address. But the command times out sooner than its completion. Now I think the company firewall and proxy might be a hindrance in this. How do I check the ...
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604 views

netsh, block all IP addresses in a text file?

Is there a way for me to import a .txt file (with IP addresses on each line) into Windows Firewall? I want each of the IP addresses to be completely blocked. That would also provide an easy way to ...
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Is it possible for Outdated Infiniband Firmware to prevent Firewall Startup

My general question: Is it feasible for a NIC Firmware to prevent Windows OS Firewall services from successfully loading upon bootup? Explanation of situation: I have been experiencing the darnest ...
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146 views

How to block programs in windows 8 firewall correctly?

I am new to Windows 8, Generally using Ubuntu and/or OpenSuse, and Windows 7, My new laptop came with Windows 8 - 64bit. Anyway normally in Windows 7 when I want to control access for specific ...
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1k views

Why does Windows Firewall want to block Google Chrome today?

I've been using the same public Wi-Fi (staying in a guesthouse) for over a week now. But this morning for the first time I got this puzzling warning from Windows Firewall: Why does Windows ...
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Windows 8: Block Internet except for all but two programs [duplicate]

Question marked as duplicate, as is nearly every other question about blacklisting and whitelisting. Some of these questions are different because: 1) XP has a different firewall than Vista/Win7/Win8 ...
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168 views

Windows 8.1 cannot block UDP connection?

I installed a BT software, which requires both TCP and UDP inbound connection. But my router is very weak. If the UPD/Tx goes up over 100, the router will die. And Windows does not have a function to ...
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22 views

Allow Windows Update with Firewall set to block all outbound [duplicate]

I'm using Windows 8.1 and I have blocked outgoing connections with the builtin Windows Advanced Firewall. Windows Update isn't whitelisted by the default outgoing rules list. How do I allow Windows ...
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42 views

How to know at what point a request fails on Windows 8

I'm testing a small script on Windows 8, which tries to fetch a simple web page on port 80. However the network connection fails everytime with error 10053. I thought initially of a firewall problem ...
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71 views

WIndows firewall rule to receive nbtstat information

I'm using nbtstat.exe to gather MAC-Addresses of machines in my domain. I'm only able to get a result, if the firewall is turned off on the clients! Output if firewall is turned on: Microsoft ...
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95 views

Windows Server 2008 - Is it possible to allow traffic by MAC address

I need to be able to access my webservers from outside my office and don't want to update the IP every time my dynamic IP changes. Is it possible to create an allow rule by MAC address? Thanks! ...
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27 views

Malware transmitted over network

I am doing some tests in my second computer which involve dropping the firewall and antivirus. I'm trying to isolate the 2 systems so malware can't jump between them. Both systems have win8 ...
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158 views

remote desktop windows 8 cannot connect

In my home I have two computers one running on Windows 7 and the other one is on Windows 8. I am able to connect my office computer using the Windows 7 computer. But I am unable to connect using my ...
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236 views

Mystery firewall? Checklist for diagnosing blocked incoming connections

I'm running a web server for development on a Lenovo Thinkpad T420s, and I cannot connect to it from three separate devices (desktop, iPad, and phone, respectively). The laptop and other devices are ...
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42 views

Windows 8.1 - windows update doesn't work with outbound connections that don't match a rule, blocked [duplicate]

I would like to ask for some support. I've installed windows 8.1 just to check it a bit. Within windows firewall i wanted to block all outbound connections which do not match a rule but windows update ...
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192 views

Windows Firewall: How to create a rule that allows a program through a specific remote VPN connection?

Let's say there is an application analysis_data_upload.exe, that must only be run when a machine is connected to one specific VPN with a dynamic IP that is resolved via a static domain name. Given a ...
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153 views

Firwall blocks TFTP over OpenVPN

I have to access a private network with OpenVPN. There is a TFTP service running in that private network. When I try to transfer a file the Windows 7 firewall drops all incoming packets. The TFTP ...
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How do I reset my inbound and oubound list on Windows Firewall?

How do I reset the inbound and outbound rules in Windows Firewall? It changed the list after installing a program called "Tinywall". Before it lists programs like mozilla firefox, chrome, etc., now it ...
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Windows Firewall Annoyance

I dont know why , but my firewall isnt letting anything except for internet explorer connect to the internet, including Windows updates. Whenever I try to open the firewall, it simply says " Due to an ...