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

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0
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2answers
13k views

How to open a specific port in Moutain Lion Firewall

I cant seem to find how to open a specific port in the ML firewall? I know you can give applications permisiion, but thats no good to me. Is there a way I can specify a specific port?
2
votes
1answer
18 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
18 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)...
2
votes
2answers
172 views

Connecting a port in linux from other machine

I'm going fast to asking this question so i'm apologize. I'm on Linux Fedora 23. I'm running an application Telegram-CLI with listening a port using this argument. -P 1337 That is fine and works ...
0
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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
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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
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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 ...
2
votes
1answer
349 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 ...
24
votes
9answers
205k views

How to bypass web URL filtering service to access blocked websites (proxy)

I'm using network, where services such as Gmail or any other e-mails, Google Drive, Dropbox, all social networks are blocked. Basically my goal is to access simply GMail, but I couldn't find any way ...
0
votes
1answer
19 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
33 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
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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
1answer
3k views

UDP blocked by Windows XP Firewall when sending to local machine

I work for a software development company but the issue doesn't seem to be programming-related. Here is my setup: Windows XP Professional with Service Pack 3, all updated Program that sends UDP ...
1
vote
2answers
47 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 ...
2
votes
1answer
4k views

How to allow windows store apps and the windows strore to pass the windows firewall

I use the windows 8 firewall and I wanted it more secure, so I block incoming and outgoing connection. Unfortunately I realized that the windows store did not work as well and all application from the ...
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
vote
2answers
281 views

Iptables rules to only whitelist SIP providers

I have an Asterisk box sitting behind an ADSL router/modem. There are no other services on the Asterisk box, just telephony. I am getting a lot of traffic which I think are SIP probes. I've ...
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
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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 ...
1
vote
1answer
94 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
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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
203 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
3k views

Windows 2008 Firewall - How do I restrict HTTP inbound to specific IP?

My goal is to restrict all HTTP inbound requests to a specific IP addresses. I thought it would be a simple process - but I am not getting the result desired I have modified a predefined rule called ...
3
votes
1answer
11k views

How to setup firewall to allow internet connection sharing via Wifi USB stick?

I have a Windows8 computer linked to the internet via an ethernet cable ("Ethernet" network connection). I have attached to it a DLink Wifi USB stick, and I'm trying to share the main PC's internet ...
0
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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 ...
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votes
1answer
22 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
40 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
1answer
6k views

How to open a port for all users: NSA 2400

I'm trying to open up port 8332 for all users behind my firewall but can only find instructions for doing so for a single IP address. How do I make sure all my users can use a specific port? I've ...
0
votes
1answer
3k views

Adding many IP addresses to Windows Firewall using CLI fails partially

I have a PowerShell script which adds IP addresses to Windows Firewall using the "netsh advfirewall" command. (As described in this question: How to append netsh firewall rules, not just replace). ...
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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
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0answers
50 views

How to allow guest on network in squid (ipfire addon)

After installing IP-Fire And being able to join a domain I have the following questions. How can I handle guests? They should have the limitations as normal users, but I don't want to add the proxy ...
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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
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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 ...
5
votes
4answers
12k views

Is it possible to put UFW on CentOS?

If so, how would I do it? If not, is there an easier way to set some basic rules on CentOS other than iptables? I'm more of an app developer and less of a sys admin.
0
votes
1answer
4k views

tracert command is not working but able to access the same site through browsers

tracert [site name] is not working in cmd prompt. But the same site has been working in all of my browsers . Please find below output of command. I need to use this command in my batch file but there ...
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
42 views

How to white list some ip and all the rest block while having already a DMZ?

I have a Linux machine running which has local ip: 192.168.1.2 connected to a router with public IP 8.8.8.8, now the router 8.8.8.8 has DMZ to 192.168.1.2 As a result spammers, hackers, crackers ...
3
votes
1answer
3k views

Allow access from outside network with dmz and iptables

I'm having a problem with my home network. So my setup is like this: In my Router (using Ubuntu desktop v11.04), I installed squid proxy as my transparent proxy. So I would like to use dyndns ...
1
vote
0answers
93 views

If nmap reports a port is open, does that ALSO mean a service is listening on the port?

I have a Thompson TG585v7 router/firewall whose firewall is configured to FORWARD several ports to a computer X54 within the LAN. These ports are in the range 1024 through to 2500 That X54 ...
0
votes
1answer
5k views

Firewall open ports for vSphere

I need to open ports on a firewall, so that a client could access his VM console through vCenter server's Web Client. I had a look at this page about port description, but I am a little confused. I ...
1
vote
2answers
684 views

Unable to open port on Win7 machine

I'm trying to run Privoxy as a proxy on my machine. I want the browser on my Android device to access the internet through it. Now I've opened exceptions for both Privoxy and port 8118 (which is the ...
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 ...
4
votes
4answers
18k views

Windows 7 is blocking ports

I am trying to open port 80 and 3690 for HTTP and svnserve respectively (inbound for both). I have Windows Firewall off, and have tried temporarily disabling Mcafee VirusScan Enterprise, to no avail. ...
14
votes
8answers
41k views

Utility to open TCP port to listen state

Is there some basic utility to open a specific network TCP port on my machine? I need to test how my program deals with ports on listening state..
-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
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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
30 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 ...