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

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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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0answers
67 views

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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1answer
539 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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1answer
660 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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1answer
65 views

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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2answers
1k 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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2answers
290 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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1answer
4k views

Windows firewall blocks outbound connection that is allowed by a rule

I have configured Windows Firewall to block all outbound connections. I have then created "allow" rules to enable certains applications to create outbound connections. Unfortunately it seems that some ...
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2answers
1k 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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1answer
96 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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1answer
2k 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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0answers
60 views

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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1answer
2k 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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5answers
27k views

Google Chrome giving error 138

Google Chrome randomly stopped working one day and is giving me this error: Google Chrome is having trouble accessing the network. This may be because your firewall or antivirus software ...
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2answers
1k views

Windows Firewall's Advanced Security mode has gone in Windows 8

With Windows 7, I was comfortable with the Advanced Security options of Windows Firewall. I could selectively disable specific executables to prevent them accessing the internet. Now I have upgraded ...
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0answers
27 views

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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1answer
77 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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2answers
374 views

Windows Firewall issues

I'm not sure whether this is a Windows problem or a .NET problem (i.e. whether it belongs here on on SO), but I've written a small HTTP server program in C# (using the .NET HttpListner class) which ...
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1answer
277 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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2answers
2k views

Can I define my own “set of predefined computers” in Windows Firewall?

According to Microsoft, I can. Note: You can also define or select a set of computer from a drop-down menu that has a predefined set of computer. Refer to the Windows Firewall with Advanced ...
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0answers
30 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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1answer
609 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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1answer
565 views

Cant start Windows Firewall from control panel

I have a weird problem. I try to open the Windows Firewall settings through the control panel. What i do, basically , is to click on Control Panel > System and Maintenance > Windows Firewall. Well ...
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1answer
319 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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2answers
10k views

Viewing Windows firewall settings in command line and GUI

Is it possible to view Windows firewall settings in command line? Also, how would I be able to check advanced windows firewall settings in GUI? Thanks.
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0answers
43 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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3answers
18k views

Windows Firewall: Logging/Notifying on outgoing request attempts

I'm trying to configure Windows firewall with Advanced Security to log and tell me when programs are trying to make outbound requests. I previously tried installing ZoneAlarm, which worked wonders for ...
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1answer
54 views

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 ...
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0answers
64 views

Can I prevent programs to open port in windows firewall?

When Windows Firewall is activated, newly installed programs open incoming ports. Can this be prevented somehow?
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1answer
1k views

windows 7 firewall blocks edge traversal(port forward from router)

I am trying to set up a website on my windows 7 machine. I opened a 'inbound rule' in firewall to open port 8000. When I try to visit the port from another computer in my home network, it works fine. ...
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2answers
3k views

Why is my Windows Firewall allowing connections from IP addresses other than which I specified?

I created a windows firewall rule restricting access to port 3389 (RDP) to only one Remote IP. However, I'm still able to Remote Desktop from other machines... Why would this be? Even if I disable the ...
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2answers
4k views

netsh advfirewall => command not found

Because of the Java 7 firewall problem, I am trying to execute the following command as administrator but I get an error: netsh advfirewall set global StatefulFTP disable (German) "Der folgende ...
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1answer
4k views

Does disabling the 'Windows Firewall' service actually work?

When I go the 'Windows Firewall' section of the Windows Control Panel, I'm told "For your security, some settings are managed by your system administrator. If I click 'Turn Windows Firewall on or ...
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1answer
101 views

Allowed Programs in Windows Firewall

If I have a program X installed that is not part of the list in Control Panel\System and Security\Windows Firewall\Allowed Programs - does that mean it is blocked? If not, when I click on 'Allow ...
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1answer
750 views

Duplicate rule in windows firewall

Let's say you have two rules, one that block and the other that allows the connection from the exact same IP. Which rule takes precedence? Here is some context: I created a script that will block any ...
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1answer
171 views

Windows 7 Firewall configuration

I had a PC set up with a VPN. I used the Windows 7 firewall to block all NON-VPN traffic to the internet, but all LAN traffic was allowed. So, with the VPN connected I could connect to all networked ...
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0answers
328 views

IIS not working on public IP

I forwarded port 8080 to my local IP, and set in IIS that port is 8080, and when I type 192.168.1.123:8080 it is working, byt when I type like public_ip:8080 it isn't. I added inbound and outbound ...
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1answer
2k views

How to reset Windows 7 Firewall in SafeMode?

In attempt to block the certain countries from hitting my personal computer, I have made a big mistake of adding thousands of block rules in the Windows Firewall. I got the script from ...
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2answers
278 views

Windows 8: how to modify an default firewall rule?

On one Windows 8 computer I modified the Remote Desktop Port. The default port is 3389. I set it to 1234. Now I want to tell the firewall to open the 1234 port. I could just create a new firewall ...
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4answers
97k views

How to restore Windows Firewall after some malware deleted its service?

Yesterday I visited some web site, and apparently got infected via some Flash exploit. Microsoft Security essentials immediately kicked in, and displayed a warning about four items: > ...
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1answer
4k views

Windows could not start the Windows Firewall on Local Computer

I've been unable to start my Windows Firewall service for a while now. How can I get it to start? When I try through the Services manager (services.msc) I get this error: I am running ...
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1answer
2k views

Windows 7 Firewall blocking packets when it is not running?

I stopped Windows 7 Firewall in Services, but it (or one of its minions) is still dropping packets. I am trying to use rtiddsping (custom ping for the DDS framework I'm using) to debug a DDS ...
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1answer
85 views

What does Windows Firewall do if I don't add a specific firewall rule?

Suppose I have a program which needs to connect to the Internet in order to work. Let's also say that I only want this program to communicate on private networks, so I add a firewall rule allowing it ...
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1answer
5k views

What Does This Windows Firewall Rule Do?

I found and implemented this code that adds a rule to Windows Firewall. It supposedly speeds up YouTube streams. Can someone explain what is does in terms of request/response? I'm not seeing any ...
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2answers
5k views

How does telnet get through the windows firewall?

I activated the Telnet client in Windows 7 and was instantly able to connect to servers although Windows Firewall is activated. How does that work? Shouldn't the firewall block outgoing connections ...
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3answers
5k views

How to setup Windows 7 firewall to work like a normal personal firewall?

Since Windows 7 already comes with its own firewall, I prefer not to install a 3rd party one. However, when I started trying to set it up, I quickly discovered that it's much less user-friendly than ...
2
votes
1answer
7k views

Configure Windows Firewall to allow DHCP client and specific remote IPs only

I've configured Windows Firewall in Windows 7 to block all traffic on the public interface, except to certain IP addresses, as described here: http://superuser.com/a/456326/112560 The problem is, this ...
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1answer
164 views

Why does the Windows Firewall ask to unblock an application that has no incoming connections

I have an application that connects to a License Server. The application triggers the request to allow connections on Windows XP and up. No matter whether I block or unblock the application, it gets ...
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1answer
692 views

How to change your firewall preferences when you cannot login to Windows 7?

Here is a toughie. I just switched to a new computer at work and for some reason Firefox wasn't able to connect to the internet. So, I went into windows firewall settings in the control panel and ...
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3answers
21k views

What happened to my “Predefined rules” in Windows Firewall? How can I get them back?

Windows Firewall Advanced Settings in Windows 7 , has predefined rule sets. When I click the "Add Rule..." button in my Windows 7 Ultimate install, it looks like this: But, on a machine I have ...