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

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19
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1answer
2k views

Is it possible to create firewall that only allows legitimate webserver traffic on port 443 and not any other service?

I always used the simple trick to bypass most firewalls which prevented me from using any ports. I simply opened ssh on one of my servers on port 443 and tunneled all traffic through there. However I ...
0
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0answers
91 views

monitoring DD-WRT router logs with WallWatcher

I was setting up log monitoring for my DD-WRT router with Wall Watcher. What I have problems with is the actual logging. I've found that the router's syslog port is 514, however when I allow this in ...
1
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0answers
95 views

Watchguard firewall with DHCP

I have a watchguard with the ip address of 192.168.1.254/24 (DHCP disabled) and all the user will get IP from Window 2008 DHCP Server [192.168.1.2 to 192.168.1.250] /24. Now I need to increase network ...
0
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1answer
33 views

How to block certain IP addresses on UEFI system?

So I have several OS on my PC and I'm frequently changing this. Is there some way I can block certain IP address on my NIC so that I can't access it no-matter what. I'm thinking maybe if there could ...
0
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0answers
189 views

Port Forwarding on CentOS 7 using FirewallD

I have a network where I have a Netgear cable modem bridged to a VyOS Router, then a DMZ network to my external firewall / internal gateway then into my local network. (I have the Netgear modem ...
1
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1answer
56 views

Comodo Firewall asks to restart the computer. How to refuse?

Comodo Firewall asks me to restart the computer. In the dialog box it seems that I can only postpone the reminder. Is there any way to turn off the reminder for ever? I use Comodo Firewall with ...
3
votes
1answer
906 views

How to isolate networks with a Mikrotik router?

I have recently got a Mikrotik router for my network, and I want to create 3 networks that are isolated from each other but all have internet access: The "main" network for PCs, etc. A network for ...
2
votes
3answers
94 views

Cannot Access My Computer Over LAN

I cannot even ping my computer from another device inside LAN. I've tried the followings: Turned on Network Discovery, File&Printer Sharing, Folder Sharing from Network and Sharing Center ...
0
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1answer
51 views

How to Block all inbound and outbound traffic to and from an Local IP

I need to block entire traffic to and from an Local IP on an WiFi Network, I am using DD WRT Based router, So I Can use iptables. I know the IP Of an Client on the Local Network, Some thing like 192....
0
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0answers
25 views

Dropping a connection upon a certain event

Is it possible to drop connections to a number of remote stations when another is open? For example say we have a set of machines with the network addresses (IPs) {A, B, C} and another with the ...
1
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0answers
249 views

pf error - “No ALTQ support in the kernel”… What does this mean?

I am running Mac OS X. I would like to be able to configure pf because it seems to be more sophisticated and flexible than the default Mac OS X firewall that you can access through the System ...
0
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0answers
220 views

Blocking Samsung TV firmware updates using Zyxel's 'Eircom f1000' VMG8324-B10A

Please note to fix Wi-Fi in the past, using a guide created by users of this forum, I have previously unbranded this router to remove the Eircom firmware and it now runs V100AAKL12C0 which was ...
0
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1answer
334 views

Which layer7 protocol used the YouTube streaming

I want to restrict the bandwidth on YouTube in pfsense firewall. I try to setup layer7 with set the limit on http video/audio,flash, swf protocol and created the separate rule for YouTube but did not ...
0
votes
1answer
29 views

Windows 7 firewall different subnets

I'm on a large company network with different subnets. There are a few win7 computers that I have admin rights on, but I'm not able to access their drives through different subnets. I can access the ...
0
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0answers
8 views

Manipulate a network with virtual machines

How can I make this network with virtual machines? I know that I need next things: ESXi DMZ Debian Firewalls Apache server But how can I do this? Can I download an iso file whit ESXi like you ...
1
vote
1answer
47 views

2 Internet Connections, 1 Computer. I feel this is harder than it should be

I have looked around for a while but haven't been able to find any answers, maybe because what I want to do isn't really possible, but that's why I am here. Basically, I have 2 separate incoming ...
0
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0answers
31 views

Block HTTP/HTTPS traffic unless proxied through CloudFlare using UFW

I have a web server and I wish to enforce that all HTTP/HTTPS connections go through CloudFlare, and can not simply just go directly to the IP address of the origin. How can I configure UFW to do ...
0
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0answers
85 views

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 ...
0
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0answers
18 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 ...
1
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0answers
147 views

Virtual server on Arris Modem: “Table FWVirtSrvTable Full”

I have forwarded ports in the past. Never had any issues. I'm using an Arris TG1672G modem. Whenever I try to add a virtual server (aka forward a port), I get this "Table FWVirtSrvTable Full" error. ...
0
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0answers
42 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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0answers
550 views

Open port with pfctl in OS X El Capitan - Allow incoming connections from Internet

I was struggling with a kind of configuration that I'm doing with my mac mini. I have set my machine on the DMZ of my network, so any request to my public ip will end on this machine. The problem is ...
1
vote
1answer
57 views

Command executes fine through cmd but not through PowerShell

This command doesn't work: netsh advfirewall set allprofiles firewallpolicy blockinboundalways,allowoutbound This command works: netsh advfirewall set allprofiles state on I've tried using ...
0
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0answers
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?
0
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1answer
221 views

Mikrotik: Ban host if there are too many HTTP requests from it

Yesterday I noticed a strange activity of my humble web server: it was moderately warm, was twitching by HDD heads and LAN activity was unusually high. When I looked to logs, found that some host is ...
0
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0answers
178 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 ...
2
votes
2answers
306 views

Transmission-Daemon does not upload, but can download

I have just installed transmission-daemon on a Raspberry Pi running Raspbian (Jessie). When adding a torrent to the web interface, downloading works at high speeds, but it doesn't upload anything at ...
1
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0answers
183 views

How to create firewall rule on virtualbox windows host to control linux guest access to internet?

I have a windows 7 64-bit host (all outbound connections generally blocked) and run virtualbox (5.0.1) with an opensuse 13.2 guest and need to create a firewall rule on the host to allow access from ...
-1
votes
1answer
66 views

How to disable UFW on Ubuntu after locking out SSH?

I enabled the UFW firewall using SSH on my server at Digital Ocean running sudo ufw enable. and forgot to allow the ports for SSH, FTP, ... (but allowed port 80). How can I SSH into the server or ...
2
votes
1answer
303 views

VMware Player and Windows 7 firewall

My Windows 7 firewall (the one by Microsoft that is shipped with the OS) is configured to block all inbound and outbound connections by default. Because all outbound connections are blocked, I ...
1
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0answers
40 views

Configure tomato firewall in VM or Debian / CentOs server

I want to use tomato as my internal firewall for accept/block network packets inside my server system. I know that tomato provides firmware for some routers but I want to do some tricky but don't know ...
1
vote
1answer
51 views

How to block all outbound connections in windows 8.1 for a specific WIFI connection

I'm travelling around and use lot's of different Wifi connections. When using a general wifi connection everything is allowed. There is only 1 connection (a wifi hotspot connection to my mobile phone ...
0
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0answers
34 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 ...
1
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0answers
156 views

Why apache log “(111)Connection refused” warning when child process is closed

I am running a server using apache, and the apache error log is periodically getting this warning, usually when there are visits to the site, and usually in groups of at least two or three at a time. ...
0
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0answers
60 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 ...
0
votes
1answer
60 views

force mail program to use wireless and wired connections side-by-side

My wired internet connection at work blocks the IMAP, POP and SMTP ports (the mail server is Exchange) which prevents me from using an email program like ThunderBird. With the internet cable plugged ...
0
votes
1answer
210 views

Using UPnP when Connecting to internet using (Router+Modem)

I want to enable the UPnP to make programs like Gameranger host some games without problems . I am connecting using a Gargoyle router , and that router is connecting to the internet using ZET ZXV10 ...
0
votes
2answers
372 views

How to allow Visual Studio FTP in W10 Firewall

I'm trying to publish some software to an FTP site with Visual Studio (VS) 2015 community, The output window shows an error An error occured trying to enumerate the contents of folder ''. An ...
1
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0answers
109 views

How to config Mac OS X firewall to let http (80) request in?

I hava installed xampp in my Mac OS X 10.11 (El Capitan). It works fine when I type http://192.168.0.63 (my IP address) into my browser, but others in the same network can't access through http://192....
0
votes
1answer
42 views

how much of a security risk is turning off the firewall in a modem?

I have a router that I want to plug into a modem/router too (the latter is a poor router) and the advice I'm getting is to set the modem / router to full bridge mode, like so: https://whirlpool.net....
0
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0answers
65 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 ...
1
vote
1answer
97 views

Network issue - client on Android device not connecting to server on my laptop

I have a server app running on my windows 7 laptop and I have a client app running on my Android phone. Both, laptop and phone when connected to my work WIFI can communicate. I can log it into my ...
1
vote
1answer
755 views

Ubuntu IPTables allow only allow 1 country

So I've been looking around on the net for a script that will drop all traffic to all ports except the http(80) and https(443) ports, and then only allow traffic on all other ports from country x (...
5
votes
1answer
408 views

How to see which applications use “Host process for windows services” to eat metered data?

I have to spend a lot of time on metered connections in a country where data is expensive. I use Glasswire firewall to keep an eye on what software is using my precious data and to throttle programs ...
-1
votes
1answer
45 views

Unable to rdp after fw change

VM Windows Server 2012 r2 I was able to rdp to this PC without issues until today. While logged in via rdp I was in control panel > firewall and I noticed that there was a message saying 'use ...
2
votes
2answers
78 views

Windows firewall - opening ports by specifying .exe

Normally, you open ports by specifying port number and the protocol - either TCP or UDP. However, Windows allows me to add exceptions by specifying the executable file. How does it work? What happens ...
0
votes
1answer
88 views

Windows port forwading

i got the following setup on an windows server 2012 R2: i have 2 nics: Nic1 has an public ipv4 adress (lets call this 5.5.5.5) Nic2 has an private ip adresse (192.168.2.10) So now i want to ...
0
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0answers
418 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 ...
0
votes
1answer
26 views

Can not access web domain from local computers

I have a WEBserver IIS7 in my local network. When I go to "www.mydomain.com" from a computer inside same LAN I cant access it. If I put in the local IP it works. "www.mydomain.com" do also works from ...
0
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0answers
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 ...