Software that controls what connections can be made to and from a network.

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Firewall warning in Windows 10 - choose public or private network

While installing Spotify on my Windows 10 machine I got the very same security alarm from the Windows firewall as in this question. While the firewall warning was explained in this thread I still ...
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20 views

setting up firewall to block internet access from virtual machines

i am trying to setup a firewall in my LAN. this is my current setup: broadband connection, router, esx server, VMs inside esx, desktop, laptop. currently all the systems(including Vms) can access ...
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51 views

Group policy: Why does the firewall GUI disagree with the HNetCfg COM Object?

I have some code that verifies the firewall status on the current machine by querying FirewallEnabled on an HNetCfg COM object. When running in domain B where the firewall state is controlled by ...
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19 views

How do i allow hotspot through outpost firewall?

I tried using hotspot after installing the outpost firewall and its not working. But when I disable my firewall it starts to work, so how do i allow the software in my outpost firewall?
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207 views

Windows firewall won't turn on. (access denied)

(On Windows 10) I can't seem to be able to turn on windows firewall... From action center turning it on fails and it sends me to turn it on manually, but when I try and do that, nothing happens. It ...
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35 views

Firewall blocks port connection even if I add an inbound rule

I am trying to upload files to a FileZilla FTP server. I have setup in my PC the server and I am using a simple C# script in order to upload files. It works properly when I run the script from the ...
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65 views

SSH Tunnel via very restrictive HTTP Proxy/Firewall

I know how this usually works, I've done a lot of investigation and tinkering to get this far and my observations are reproducible. Have a (few) SSH Server(s) Running on port 443 (https), and a few ...
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76 views

Block Port 4000 on Window 7

On Windows 7 Enterprise 64 bit system Need to block Port 4000. Under system Firewall by creating inbound rules and outbound rules have blocked port 4000 but its not working. Need your advice. System ...
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419 views

how to stop PC from sending ICMP of “Destination Unreachable(host administratively prohibited)”

I'm doing some experiments and measurements. I send some random TCP packets to a laptop(with fedora system), that laptop reacts by sending ICMP packets of type 3 and code 10, which means Destination ...
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38 views

Block traffic when VPN disconnects

I want to connect to a VPN using the command line tool OpenVPN. To stop ingoing and outgoing traffic when the VPN disconnects because of some problems, I want to use the OpenBSD Packet Filter (PF). I ...
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55 views

How to setup a network proxy with a server and RouterOS?

Right now, we have a router with RouterOS which provide network for several machines connecting to it. We have a server connected to the router and we have a software which provide pac http proxy ...
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60 views

Unable to remove port 22 from firewalld

I am running a VPS that i have gone and installed firewalld on, on this box, the service comes by default with port 22 open so that you can still gain ssh access. I have manually changed the SSH port,...
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40 views

Skype 443 port filtered

I have Skype installed on a Windows but I'm after a FW 443 port that has the filtering and Skype not working. Apparently it seems that outbound traffic is not working. Is there any way for Skype to ...
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21 views

Unknown UPnP Entries

Was checkout out my Firewall on which I usually have UPnP disabled, but turned it on as a debugging step for an issue I was having. I just noticed three ports registered that I am unsure where they ...
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33 views

How to check all open ports

In our firewall (using Windows Server 2008 r2) we've allowed only port 80 and closed all other ports. How can we test if the firewall is only allowing port 80?
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40 views

Local host's iptables dropping packets even though router firewall only forwards one port

I have a computer on a small WLAN that is connected to the internet via a router. The router has firewall software and I have set up the router firewall to forward port 1234 and only port 1234 to my ...
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153 views

Sophos UTM Firewall unintentionally blocking access

I am using Sophos UTM 9 and it blocks some users' access to our company website while others are able to access it. When a blocked user attempts to visit the website, it shows the Sophos UTM screen. I'...
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65 views

IPSec transport encryption on Windows Advanced Firewall

On Windows Server 2012, what is the way of enabling IPSec encryption (transport mode) between two hosts, while still honoring the firewall allow/deny rules? There appear to be two IPSec configuration ...
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59 views

Allowing Outbound UDP 123 - Security Implications?

What are the risks of allowing outbound UDP 123 for an internal server (archive server) to synchronize with the external NTP server. Our internal server always displays incorrect time intervals ...
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383 views

Cannot open pritunl port to outside

I'm trying to install pritunl on my Ubuntu 14.04 VPS, I managed to open port 9700, so I can connect to the web interface, my VPN should be running on port 16118, but for some reason I am unable to ...
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43 views

Windows 10: want to force a specific website to be opened only by one of two active internet connections

I have a PC with Windows 10 with two active wifi internet lines with two network adapters. one is wifi adapter and one is LAN adapter. I want to force all pages and files from a specific website (not ...
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107 views

Router reachability / configuration issue

I'm facing a weird problem at home and have been trying to find the root cause of the following problem, and solve it. I have a Motorola router at home and its public IP is 104.32.170.156 (taken from ...
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27 views

Problems accessing Rshiny inside a firewall

Here is the setup I am working with. Office:personal server (win2k8 running shiny + website with iis)+ laptop. Lab: I have tools with data but are behind a firewall, I do however have access to a ...
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155 views

Cannot add/remove “allow incoming connections” permission in OSX firewall from CLI

I am trying to remove an "Allow incoming connections" permission from the firewall in OSX 10.10.5 using the command-line. On one machine I get the following error when trying to remove the app from ...
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134 views

How to block HTTP 302 redirection package by matching a specific string on Location?

The HTTP response I want to block has: Header HTTP/1.1 302 Found Location: http://www.yxjiaodai.com/ad/?id=1023&url=http%3A//a1819.oadz.com/link/C/1819/3081547/dtMdon4l79FwsIo2JXEHqtdp5eQ_/p007/...
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49 views

Is DNScrypt working properly? ESET blocking

I installed DNScrypt on Windows 7 and from a test from dnsleak.com it reroutes the DNS requests. But: I have ESET AntiVirus installed. It has some website blocking included. When I go to a website ...
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46 views

Can I use win7-virtualbox as a router to VPN?

I have a linux mint machine. Inside the linux mint I've installed a win7 that is connected to my workplace vpn. The goal is to route VPN traffic from the host (linux) via the win7-VM. To the ...
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55 views

Blocking connection to internet only when certain program is run

I wonder if that is possible. For example: I want to block "Steam"s connection to the internet when I run a certain game. Is that possible or do I have to keep disabling and enabling the rule?
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40 views

transfer ARP on linux iptables with diffrent subnet

Firewall(linux) - with 2 interfaces: internal, external ; also used as GW Internal: 192.168.254.1/16 External: 10.0.254.1/16 external_client(linux) IP: 10.0.1.1/16 internal_client(linux) IP: 192.168.1....
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49 views

How to forward port-specific IPv6 traffic to the internal network?

I have IPV6 connectivity provided by Hurricane Electric on my home network. Now I want to make my internal IPv6 hosts available to the outside world, but only specific ports. I have created the ...
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201 views

Windows 10 / Mobile Hotspot / Firewall

I'd like to share my cellular connection from my windows 10 notebook via mobile hotspot, but my firewall (AVG) blocks all connections. When I deactivate AVG everything works fine. Is there a rule I ...
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350 views

Is it possible to apply parts of AdBlock+'s EasyList Adblocking list to the hosts file in any way?

I use AdBlock+ for Firefox, but I was wondering if it would be possible to apply AdBlock+'s EasyList filter to the Windows Host file. I doubt that that is possible because of the rules in the EasyList ...
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434 views

Syslog Configuration on logstash (ELK) pfSense 2.2.2

I was wondering if someone could help me out or guide me. So I got everything up and running my only issue that when im trying to filter my syslog dashboard (the system logs of pfSense) it shows ...
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54 views

Active Directory VPS Server (Security)

I have a VPS configured as a domain controller on the internet as part of a project. I am concerned about security as Windows Built-in Firewall and security has a reputation for being about as easy to ...
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141 views

How to install a network hub to monitor Internet usage bandwidth for each device

bought a networking hub 100base tx so i would like to monitor internet bandwidth consumption for each IP,who is eating my bandwidth. scenario is ISP----Router-----switches----- computers. where to ...
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28 views

no internet with some programs, it's not the firewall

the last few days some programs cannot get info from internet, that is:i wrote the programs with livecode and created a simple connectiontest program that post to a php file on a website and tells me ...
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134 views

How to best configure a home network with one dedicated firewall PC, and two routers (one linked to the other to increase range)?

I have a moderately complex home network, but I'm not getting the data I want from my firewall, which sends nightly reports of activity. My entry point to my network is an Untangled server with 2 ...
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69 views

IPSec VPN - can't access / ping remote computers / NAS drive

I'm connected with the VPN set up on a FVS338 firewall. I connect everytime without any problem, but here's the thing. I can't ping any LAN machines beneath the VPN. However, I can access (and ping) ...
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88 views

SSH through firewall

I am trying to connect to a linux server (via PuTTy) through a firewall. I ran netstat on the Win7 client and found a handful of suitable (listening) TCP/UDP ports. I configured the server to use ...
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28 views

Enforce EUI-64 configuration

I'd like to ask if there is any possibility to enforce EUI-64 address in my network. I'm not able to use port ACL and IPv6 Source Guard because of old IOS system on my switches and the upgrade ...
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91 views

How to block all traffic except one in windows

I am trying to block all outbound traffic except one. I have referred to this post but it does not seem to help much How to block all traffic but one IP in Windows Firewall? What i am trying ...
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34 views

HPQC 12.20 Community Edition - How to enable Network access on Windows?

How to enable Network access on Windows ? The HPQC server is just accessable on the same computer at http: // localhost : 8080 / qcbin (without spaces) and at http://192.168.178.2:8080/qcbin With ...
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478 views

Allow trusted IP and Block others in Windows Server 2008 R2

For protection of a Web Server, I need to allow some trusted IP and block others. The solution I have tried: Create 2 inbound rules : Allow some IP and RDP IP Block All this resulted on ...
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80 views

how to configure naxsi to accept json format in rest apis?

or example one of my APIs is: Post request: /api/v0/login body: { "username":"xxx@ggg.com", "password":"eeeee" } I want to secure this API with naxsi (Nginx Anti XSS & SQL Injection), I could ...
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96 views

Can I reference multiple interfaces in OS X pf with wildcards?

I use /etc/pf.conf and pfctl from within a program to programmatically block and unblock network interfaces. When I for example want to unblock all tunnel interfaces I want to unblock all interfaces ...
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27 views

windows firewall allowing iis to serve default site to local machines despite block rules

Running Windows 7; trying to use WFC and Windows Firewall to block inbound IIS connections except those originating from my database server. No matter what I block or unblock, the local network (192....
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65 views

NETGEAR router-firewall setup

I have a NETGEAR WNDR3400 and it is connected to a NETGEAR FSV338. Do I need both the router and firewall to protect my network, or does the router act as a firewall too? In addition, the firewall and ...
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419 views

Cannot connect to server, error message says “java.net.ConnectException: Connection refused”

I have been trying to get a minecraft server running for some time now to no avail. I apologize for the fact that this is not as technically advanced a question as is intended for this forum, and that ...
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1k views

Windows 7: Block an entire folder from accessing the internet (outbound)

Every time I need to block an application from accessing the internet I do so by creating a rule (firewall) for a specific EXE file (or other). Usually there are multiple programs in one folder and ...
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107 views

CheckPoint Firewall Comand Line Login fwpolicy.exe

Is there a way to use command line to login to CheckPoint Smart Dashboard with the fwpolicy.exe tool ? How do I look at the help pages or manpages ?