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

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2
votes
1answer
26 views

Firewall pop-up notifications won't go away (Windows 10)

So, recently I got a new laptop (It's an HP, with windows 10) There's a pop up notification from windows firewall that shows up almost every other minute I've hit accept and simply closed it ...
0
votes
1answer
19 views

Take down firewall for interface on Centos 7

I am exporting a few items over NFS, but my clients can't mount them. When I try to showmount -e myServer I get clnt_create: RPC: Port mapper failure - Unable to receive: errno 113 (No route to host)...
0
votes
1answer
25 views

Why does my Windows Firewall keep forgetting its settings?

Windows Firewall continually forgets its settings. It does not remember programs that I allow, and if I turn off notifications for blocked apps, the notifications are turned back shortly (at least ...
-1
votes
1answer
23 views

What are the advantages of firewall based on cloud? [on hold]

What are the advantages of firewall based on cloud? Is not it take a lot of traffic? Thank you
-1
votes
0answers
19 views

multiple speed port on 100M internet connection

I upgraded my internet connection to 100M. But I'm not able to get this bandwidth. I have a vlan where 2 firewalls have access to it. Both are configured with auto negotiation on, but on of them is ...
0
votes
1answer
20 views

Allowing IKEv2 on Windows Firewall

I am using a VPN service from a company that offers IKEv2 VPN. I tried enabling it in the Windows Firewall by allowing UDP ports 500 and 4500. I also allowed Protocol number 50 and 51 without luck. I ...
0
votes
1answer
35 views

How can I do DNAT and SNAT on Windows 7?

I have a very old program which uses a fixed IP address as destination. I'm trying to revamp my network into something more modern but this legacy system is holding me back. As a simple solution, I ...
0
votes
0answers
6 views

Puppet Firewall Module and regexp for the interface name

i want to apply an an firewall rule on a linux hosts with the puppet firewall module. (The module is working i have many other rules successfully applied) The interface (outiface) should be defined ...
1
vote
2answers
49 views

Home network: configure for IPv6

I want to configure my home network to be able to access the Internet via IPv6, because I want to learn what it takes, and I want to be a part of reducing demand (eventually) for IPv4 addresses. My ...
0
votes
0answers
7 views

Rinetd configuration does not want to change?

I made a successfull port forwarding with the following: Machine A: iptables -P OUTPUT DROP iptables -A OUTPUT -p tcp --dport 53 -j ACCEPT In /etc/rinetd.conf I changed for: ...
0
votes
0answers
22 views

Restrict internet access for a VM running on Linux with firewall rules

I have Red Hat 7 running on my workstation, and Windows 10, used for working with Windows programs, in a virtual machine running on KVM/QEMU. The workstation, fulfilling the role as hypervisor, and ...
0
votes
0answers
6 views

Forward iOS app traffic to IP address on a router

I have an iOS camera app that seeks to connect to a specific IP address. I am trying to setup a wifi device to connect to a wifi router(static ip Address) then forward the camera app traffic to the ...
0
votes
0answers
14 views

What IP/ports should be opened for Docker Hub?

Given our client's restrictions, we cannot have our VMs completely open to the internet. However, we sometimes need to pull Docker images from Docker Hub. We can white-list IP addresses and ranges, ...
1
vote
1answer
205 views

Provide an individual user with access to a specific web-site for windows-base IT [on hold]

At work, I need access to youtube to watch some training material. My request to IT was denied on the grounds that it is not suitable for business use, however when I questioned them about this I got ...
-3
votes
1answer
23 views

Bypass SonicWall FireWall

My work place uses a dell sonic wall firewall and it is set to record all the websites i have visited and how much times i visit these websites and i don't want my boss to see that i have been playing ...
0
votes
2answers
41 views

Switch vs Router for Multiple WAN IPs

Our ISP provides a /27 block of IPs. I want to assign 5 IP's to one firewall, 1 IP to another firewall for now. The firewall with 5 IP's will be a Sophos XG - 1 IP will be used for internal network ...
0
votes
0answers
33 views

Windows netsh advfirewall allow ip on port

I need to create a firewall that can allow only certain ips on certain port. For example allow 1.2.3.4, 2.2.2.2 and 5.5.5.5 on port 45654. If 6.6.6.6 tries to access 45654 to deny it. What command i ...
0
votes
1answer
17 views

is this failed SIP call due to firewall or NAT?

I'm trying to find out why this call failed, with: <--- SIP read from UDP:63.247.69.226:5060 ---> SIP/2.0 100 Trying and then Everyone is busy/congested at this time (1:0/0/1) full debug ...
-1
votes
0answers
5 views

Windows security software wanted, mix of personal firewall and packet filter [migrated]

Many years ago, I had a Windows based security software of which I do not remember the name. It was advertised as a personal firewall, but it could do much more. After initial installation it would ...
0
votes
1answer
28 views

Is it worth to block inbound packets from a security standpoint?

If I block all the outgoing packets with iptables then in theory my system is safe since incoming packets won't be able to trigger data stealing. However those incoming packets can still exploit some ...
1
vote
0answers
33 views

Windows firewall rules keep reverting after refresh

When i create a new firewall role (inbound or outbound) in the Windows Firewall and Advanced Security after refresh, it disappears! I have this problem recently and i don't know why? (I searched and ...
0
votes
1answer
34 views

Enabling Remote Connection through FIrewall with Firewall diasbled

I'm running a dedicated server with Windows Server 2012 R2. Recently I locked myself out by Enabling Windows Firewall. No port rule was in place so the remote connection got blocked completely. I ...
0
votes
2answers
17 views

Cannot go on Internet from my remote location over vpn connection

Many information exists on this forum and Internet but I just can't filter out the solution for me. My setup is quite simple. I just installed pfSense and configured OpenVPN server on it. I downloaded ...
-1
votes
1answer
26 views

What are the basic commands for ufw firewall in Ubuntu?

I want to setup ufw firewall in ubuntu. Please list some basic commands that I need to learn to operate it via termianl.
0
votes
1answer
19 views

How to test outoing traffic on random ports? (I'm on OS X)

In some situations or on some locations, I'm struggling with restricted outgoing traffic. For example a restricted LAN where outgoing traffic is only allowed on limited ports. I know how to check or ...
0
votes
0answers
31 views

Nginx Proxy : Constant Backend Upstream

I currently have a nginx reverse proxy setup to my backend server. What I would like to do is instead of having nginx request something from my backend server when requested by a user, nginx will have ...
0
votes
0answers
9 views

Firewall rules by command in Windows will still work when using 3rd party firewall software?

Firewall rules can be set by command in windows, this way: https://support.microsoft.com/en-us/kb/947709 Would those command still work if the computer has a 3rd party firewall (like Comodo, ...
0
votes
1answer
31 views

Nmap scan on my LAN is blocked by my host firewall (Linux)

I recently added some rules to GUFW to make sure only my (personal) VPN connection is allowed to get out, x.x.x.x being my ip, y.y.y.y being my VPN's IP I connect to. To - Action - From y.y.y.y ...
0
votes
0answers
43 views

How to set up OpenWrt traffic rule for port forwarding IPv6 server on my LAN?

I would like to allow inbound IPv6 traffic on ports 80/443 for a globally routable web server on my home network. What's the best way to do this with OpenWrt, which by default blocks incoming IPv6 ...
0
votes
0answers
30 views

El Capitan with firewall on won't allow SSH connection

After upgrading to 10.11.5 I cannot SSH in to my Mac any more. Remote login is enabled in Sharing. In Firewall options, I see the green Allow incoming connections next to Remote Login (SSH). As soon ...
0
votes
1answer
23 views

Block common dos attacks

I have been searching for some basic IPTABLES protection agains Syn attacks and floods I have found thise commands: iptables -A INPUT -p tcp ! --syn -m state --state NEW -j DROP //syn protect ...
0
votes
1answer
43 views

Correct way to block all outgoing traffic and allow only one application

I am trying to block all traffic on a machine, except the outbound connection for an application with some ip's and ports. This is how I'm doing it but it's still blocked: First, I turn on firewall ...
1
vote
1answer
39 views

Incoming connections from public to private IP address

Today i have checked the auth.log of my raspberry (private IP address in my home network behind a wrt54gl). Surprisingly i saw a lot of "Failed password for root from" lines. The SRC IP can be found ...
0
votes
0answers
29 views

Port forwarding port 21 on a TP-Link

I am trying to forward port 21 to externally access the FTP server. I followed all the steps correctly to port forward a port but port checker tools still show that the port is blocked. Port ...
0
votes
0answers
23 views

Set an OpenWRT as a Dumb AP while running 6in4 tunnel?

The computer connect to OpenWRT router through LAN port, the router connect to another router using WAN port. So it's like: Computer -> OpenWRT -> External Router(Still in private address setup) ...
0
votes
1answer
26 views

netsh command to block URL from firewall

I am trying to block a URL with the firewall using netsh command, but without success. This is how I block an IP: netsh advfirewall firewall add rule name="Block URL" remoteip=<ip_to_block> dir=...
0
votes
1answer
27 views

I want to install vpn server on windows/unix for internet access

I want to install vpn server on windows/unix whichever runs best to bypass country restrictions to access web sites. The main purpose is the divert my all internet traffic through connected vpn. I ...
0
votes
0answers
25 views

Why people cannot do remote desktop to my computer if firewall is on?

If firewall is off it can. First thing I notice is I am on private network. The network is private Note: I am typing this through remote destkop. So now it works. However, 20 minutes ago it ...
0
votes
1answer
28 views

How do I force all traffic through VPN

I am using Debian 8, with openvpn, I am able to connect to the vpn but traffic (ping google.com) isn't working (ping: unknown host google.com). Ontop of that I'd like to add an ip table to the ...
0
votes
0answers
28 views

pfSense Port Forwarding using Alias Not Working

I am running a pfSense 2-3-RELEASE firewall and I am trying to set up NAT port forwarding so some development servers and my Mac. The servers (FreeBSD) have statically assigned IP's and my iMac has ...
0
votes
0answers
7 views

Why does my Netgear firewall cause a massive slowdown in throughput over WAN port?

I have a Netgear Prosafe FVS318G firewall and I am experiencing a significant decrease (orders of magnitude) in throughput over the WAN port as opposed to normal LAN throughput. I have the firewall ...
1
vote
1answer
95 views

Windows firewall blocking SSH to secondary subnet

My network has 2 subnets /25 and Linux server in each subnet. One of the subnets contains a Windows computer which is used for managing Linux servers via SSH; but there is problem with firewall on ...
0
votes
0answers
29 views

Mac won't open sites after installing avast

Sorry if it's wrong place to ask a question like this. I installed Avast to fix a malware, and then all websites barring few (basically Google) won't open. I've uninstalled avast but the problem ...
0
votes
1answer
31 views

can a Windows firewall rule detect what adapter is in use?

Is there a way for a Windows 10 firewall rule to determine what network adapter is in use? Can it differentiate between Wi-Fi, TAP, Ethernet, etc.? Poking around Windows Firewall for the first time, ...
0
votes
1answer
19 views

Firewall stop working and serveral other problems after recent windows7 update

After the last windows7 update Suddenly the firewall stopped working. I did a system restore (before the update) and it worked fine again. The problem what occurs are: 1) Firewall shutdown (error code ...
0
votes
0answers
28 views

How to download the Firewall in Kali?

I tried the following : 1) I updated the source list 2) updated and upgraded using sudo apt-get update && sudo apt-get upgrade 3) used the command: sudo apt-get install gufw 4)...
0
votes
0answers
20 views

In GUFW, the Ubuntu graphical firewall app, how should I interpret the “report” tab?

Pretty basic question - I've looked at the Ubuntu documentation wiki (which is the documentation linked from the gufw.org website), but it doesn't even mention the "report" information never mind ...
0
votes
0answers
7 views

What affects the state of a port besides csf firewall?

I'm on a server that uses csf. Within which, when I include port 80 in the "Allow TCP Incoming" list, port 80 is still closed when I port scan it.
3
votes
1answer
52 views

Can someone explain strange inbound connections on my server log?

Ok, so I only know as much about networking as I have learned in my Computer Systems and Electronics courses, and I am seeing something that I'm not sure how to interpret. My brother wanted me to make ...
0
votes
0answers
13 views

One way comunication in routed network

I have this network with two subnets 192.168.0.0 /25 192.168.0.128 /25 on both router i have ïnstalled OpenWrt. On right router is set routing to .128 network. Left router is wireless client ...