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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.

Windows Firewall Logo

"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 Advanced Firewall - adding Authorized Computers breaks rule

How can adding a 'only allow connections to these computers' setting in an an otherwise working IPSec rule break connectivity? Background: I'm setting up a basic set of client rules that restrict outbound SMB access to only go to certain servers.…
Tim Brigham
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Windows 2008 R2 Server with 2 ip address, how to only enable RDP to one address

As the title says we have a Windows 2008 R2 Server with 2 IP address. Currently, we can connect via RDP to both IP addresses, however, we want to block/disable RDP connections that attempt to connect to one of the addresses. I've spent quite a while…
Dean
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Creating a whitelist for RDP access

Since people are getting unauthorized access to my Windows Server (bruteforced over several months..), I'd like to set up a whitelist for RDP access. I have tried the following with Windows Firewall inbound rules: This still allows other users to…
Tgys
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Firewall predefined rule property cannot be modified

Using a stand alone Windows Server 2012 Standard edition (no Active Directory), I Tried to establish a simple remote desktop with a custom port number, but could not modify the port number in the Firewall inbound rule, when I open the inbound…
Sami-L
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Why is file sharing over internet still working, despite all firewall exceptions for filesharing being disabled?

Every exception in my windows server firewall that starts with "File and Printer Sharing" is disabled (ordered by name, so that includes domain, public (active), and private profiles). The Network and Sharing Center's options for everything except…
Triynko
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Slow SMB/CIFS to/from Win2008R2 Server

Dell R710 w/ Intel 82576 gigabit NIC (latest Intel drivers). I'm setting up a new Windows Server 2008 R2 SP1 & so far I've installed updates & configured the File Services & Web Server (IIS) roles. Windows Advanced Firewall is on (by default), and…
churnd
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How can I configure Windows Firewall without turning the service on?

I suddenly could not RDP into my server after rebooting it. Turned out the Firewall was blocking me, I remotely shut off the firewall service (parallels virtuozzo panel) and was able to RDP in. When I went to add my office IP to the firewall to…
MetaGuru
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What firewall ports need to be open for Active Directory?

I want to run DFS replication between a couple of servers. It's my understanding that the servers need to be part of a domain for this. Being able to give people a username and password that works on all servers would be useful too, so I can lock up…
Piers Karsenbarg
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Windows 7 firewall blocking some features of my app despite custom firewall rules

For automation purposes, I build a certain application which sends and receives UDP packets, and I run this tool every few hour on a Windows 7 machine. However the Windows firewall blocks me from sending/receiving packets - I get the message…
sys2197
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Configuring many block IPs in Windows Firewall

I have a large number of remote IPs to specify in Windows Firewall for a blocking rule. The only way I know to enter them is by labouriously entering them an inbound rule's properties Scope tab. Is there a more efficient way such as a command line…
Emmanuel
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How can I backup and restore my Windows 2003 Firewall Settings?

It seems that when I install TFS I just lost all my Windows Firewall settings. How can I back this up and restore them on Windows 2003?
makerofthings7
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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 all other DNS requests. I want this by creating…
Philipp
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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 correct way to let any traffic flow into/from a…
Massimo
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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 Java Server-Application no sign of any problems is…
Attila
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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 connections for port 80 and 16552 for both UDP and TCP. …
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