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

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Shares not accessible by other computers if Windows 10 firewall is ON

I am trying to share a folder on my Windows 10 machine. The computer is connected to the network via Ethernet. The problem is that when I try to access this shared folder from another Windows computer,...
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1answer
37 views

How to access an ssh server that can't accept incoming connections

The server is current running bitvise SSH (I can readily switch to another solution), it is behind a firewall that blocks incoming connections (I can't open it because of reasons). I have a computer ...
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1answer
63 views

Should Java SE Binary be allowed to communicate with my private/public networks?

I downloaded the Elder Scrolls Online Tamriel Unlimited game on my pc and got a popup explaining that Java SE Binary wants to communicate with public and private networks. I am a noob. I don't know ...
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0answers
47 views

Cannot ssh from host to guest os in Virtual Box

I have a windows machine with virtual box installed. I have ubuntu VM within the virtual box. If I setup my vm's network to use NAT, and setup port forwarding to forward from my localhost to the 10.x....
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0answers
37 views

Block all inbound traffic except one IP using windows firewall rules

I have no problem doing this in linux. I just write an iptable to block all traffic and another one after to allow a specific IP. However it doesn't look to be that easy on Windows. I did the exact ...
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1answer
12 views

Is there a way to disable OS X's firewall for a specific executable?

I'm a developer and I'm coding a C++ web server, and as part of the development iteration process I have to compile a new executable which opens listening sockets. This triggers the GUI prompt to ...
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2answers
73 views

URL with http not working

I have problem with my mac. no url is working with http url and if I use https then it's working fine. I saw this error in each browser ERR_CONNECTION_REFUSED I think this might be a virus because ...
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0answers
29 views

How do PING responses disabled from different subnets?

I found that: I can ping my Windows box A from another computer B in the same subnet. This implies, that echo server is running. I can open remote desktop on A from another computer C in another ...
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1answer
30 views

how to set up a deny rule (e.g. Apache) to block a IP if it connects more than e.g. 5 times per second?

if I want to block any IPs that connects the server more than 5 times per second, how to do that? I am currently using CloudFlare firewall to manually block such IPs but it would be nice to make it ...
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0answers
36 views

Does KVM put a firewall on top of guests?

I have been working on a project to build an all inclusive server in my home. This is to augment my networking/vm knowledge, and save my Mother money on our cable bill. It right now consists of: ...
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0answers
61 views

Wyse Device Manager Disable Wake On Lan

I want to disable Wake On Lan on all my ThinClients without going to each and every one of them and disable WoL in the bios. Unfortunately I couldn't find any setting in the Wyse Device Manager to ...
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26 views

Layer 3 switch with ACL or firewall

I have a layer 3 switch with VLANs that have ACL, do I need to get firewall hardware or will ACL do? This is for a home network.
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32 views

Windows firewall: Allow application to only connect on public network and one port on private network

I have an application that requires internet access and has a web GUI. The internet access should go through a VPN. The VPN is a public network in Windows. I configured the firewall to only allow ...
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1answer
61 views

Cannot access shared folder in XP PC within a VPN Network

I cannot access shared folder in an XP PC. Here is the scenario. PC-1: OS: Windows-XP IP: 192.168.8.210/24 Firewall On File & Printer Sharing is Allowed Port 139, 445, 137, 138 is allowed | ...
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1answer
128 views

Darkcomet hacker connecting to my pc

I was messing around on "Oracle VM" and downloaded Darkcomet from some website. I was using a win7 ISO on one VM that I downloaded the Darkcomet on and Kali Linux on another VM to use the built in ...
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1answer
37 views

How to configure iptables to route specific services tos pecific worstations?

May not be the best question title. I'll try to explain better. Also, I'm no firewalling expert. I have a linux box/router based on debian (it's a dreamplug in case it makes a difference). The ...
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0answers
51 views

Block all network traffic (including system services) except a single application

We have an IOT like application running on around 300 Windows 7 PCs. The PCs are connected to our server via a mobile VPN connection. The only network access for the PCs is to/from the LAN at the end ...
1
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1answer
53 views

How do I whitelist sites on a browser running the Bluhell Firewall add-on?

I am running a browser (Waterfox, a Firefox clone optimized for 64-bit Windows OS) with the Bluhell Firewall installed. I cannot find any obvious way to whitelist sites (such as stackoverflow.com :-). ...
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18 views

What are the drawbacks to use bridges to segment a network?

I am building a network which consists of a gateway (192.168.0.254) to a WAN which provides via DHCP the gateway address for my network. This is the part imposed on me. a central machine running ...
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67 views

Blocking Internet access by MAC host Cyberoam

There is a cyberoam router. A firewall rule exits which drops all services from specific host. Now the problem is if I specify the host as "IP host" and enter the source ip of particular node. The ...
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0answers
17 views

Connecting externally to home server firewall questions

I have an ubuntu 14.04 headless server running as a NAS/VNC and I'd like to allow external connections. I will be the only one connecting to the server and I'd be connecting from two locations and no ...
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0answers
106 views

Windows 10 update cannot connect (behind a firewall and a proxy)

I need to set up some windows 10 computers. I notice that from inside the company's domain, under a firewall and a proxy, Windows updates do NOT work. I verified that they work correctly if performed ...
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81 views

Connecting to Minecraft LAN world hosted on Windows from Linux computer

I have a computer running Windows 7 and a laptop running Ubuntu 14.04. I have Minecraft downloaded onto both computers. When I try to connect to my LAN world hosted on Windows from my Linux computer, ...
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54 views

Unable to create new profile in outlook 2013

Unable to create new profile of office365 users.(Exchange account) Things tried. Removing profile from control panel. Uninstalling and installing office 2013. Adding account with manual settings. -...
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24 views

Route traffic from ASA to different firewall default gateway

I should probably start by explaining the topography, we have two different internet connection with separate firewalls.One is an asa and one is a meraki, the default gateway for all the servers ...
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31 views

How Firewall monitors SSL HTTPS Content? Like Content Filtering

as per my knowledge, in SSL/TLS , only the source and destination machine can decrypt the message during a data communication . Then how a firewall like (Cyberoam) monitors the SSL Traffic, Like ...
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92 views

How to allow IIS to pass through firewall?

I've recently setup IIS in the server And set up below firewall rules: World Wide Web Services (HTTP Traffic-In) [Enabled] 80 port allowed to the public However, I still cannot access the web ...
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0answers
19 views

File share access

I have a File Server on Windows with user access via AD. Now I need to deny access for a user group from a specific IP-Pool. But other users must connect to the file share from the same pool. How can ...
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121 views

Windows Firewall - Allow program in dynamic folder

I need to add an exception to the Windows Firewall rules that allows a program (LogMeIn Rescue). LogMeIn let's the user download some Remote support tool.exe that unpacks into %localappdata%\logmein ...
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1answer
21 views

Where do I start to troubleshoot this strange activity from my firewall?

I noticed that my firewall yesterday blocked outgoing attempts starting at port 61494 and worked its way up to 62381, making a TCP outgoing attempt at each port once. The remote IP address seems ...
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31 views

TCP and UDP do not work with firewall

I can not connect my TCP-Client to my TCP-Server. Here is my Code: http://stackoverflow.com/questions/35661591/tcp-server-does-not-work-with-firewall I have already opened my TCP-Port "8888" in the ...
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0answers
58 views

Server 2008 What ports can I close/filter?

I have a computer running Server 2008. It has been up and running for over 6-7 years, however recently due to a LeChiffre attack, I'm looking to really lock it down from the outside. The ONLY thing ...
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0answers
76 views

How to filter mac address

There is a main Cyberoam router. This router is used to supply network to four different areas. Each area has its own Cisco router. The Users connect through that Cisco router. Now I want to prevent ...
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35 views

how to set windows firewall rules for bridged network connection?

i have created some rules in my windows firewall to grant access to only to a particular IP.. rest all connections are denied. i created a bridge between the host network and another network[ two nic ...
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0answers
40 views

Fail2ban update router firewall

Is it possible to update the router firewall with fail2ban instead of the firewall of the server machine? (I don't want to install a firewall to defend the server machine from the local network. I ...
0
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1answer
81 views

How to manage my firewall with new Centos's utilities?

I just installed a Centos7 distribution on my server. I came from Centos6, and I read that iptables utility has been replaced by firewalld and services utility by systemctl. So I try to get my ...
3
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1answer
43 views

control internet traffic in a lab using centralized software firewall

I am trying install a software firewall in our lab. How I am planning to do this is by, installing a firewall application on a computer. There are two network adapters attached to this pc, one is ...
1
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1answer
765 views

Block YouTube using Cyberoam CR25iNG [closed]

Hope you are OK. I was trying to block YouTube access in my company using Cyberoam UTM. I have firware 10.6.3 MR-1 installed. I have configured the web filter to block youtube.com and m.youtube.com as ...
2
votes
1answer
105 views

Block all traffic except for Chrome [duplicate]

I will be working on my 3G connection for a few days (meaning I'll be in the middle of nowhere). I don't want Windows to update and don't want any of my apps and services to connect to internet. I ...
0
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1answer
35 views

mDNS in the context of a DNS

Yesterday we have been discussing mDNS in the context of a lecture at the University. We did not exactly come to a result and I can't stop to think about it. The project in the lecture was about ...
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0answers
50 views

Block Windows Service Access to Remote SQL Server with Firewall

So I've got a fun firewall question. We have a windows service that we have running on a Windows Server 2012 instance. It is connecting to a remote SQL Server that we do not own, among other things. ...
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11 views

Packet is getting dropped even though iptables rule allows forwarding

I configured the following on CentOS to enable IP forwarding but limit to specific IP range(destination): iptables -D FORWARD -i eth0 -j ACCEPT #delete default ACCEPT rule iptables -P FORWARD ...
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0answers
41 views

Port Forwarding not working anymore

I've tried every solution I've come across and none of them have fixed my issue. Port forwarding used to work flawlessly. I have a dynamic IP, but that doesn't matter because it used to still work ...
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1answer
39 views

nslookup DNS Request Timed Out

I can't check the DNS, cause I use firewall in my server. How to fix it?, I have a server. DNS Request Timed Out
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17 views

how to scan in ubuntu in inside of firewall to check which ports are blocked by ASA or Juniper

how to scan in ubuntu in inside of firewall to check which ports are blocked by hardware firewall such as ASA or Juniper or switch's access list ? if can not install any software but can upload a ...
2
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2answers
179 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 ...
1
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1answer
488 views

Blocking Windows 10 Telemetry Causes Watermark?

So I have been using the firewall from Symantec Endpoint Protection to analyze and block telemetry collected my Microsoft. I have recognized a trend. The standard feedback client tries to connect to:...
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0answers
85 views

Features blocked when Skype for Business web app plug-in not allowed through firewall

If a user attempts to join an Office 365 Skype for Business web conference and they don't have the native client installed (inc. the older Lync client), they have the option to install the Skype for ...
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2answers
33 views

Scan outgoing traffic for sensitive data

I run Windows on my desktop, but I would be willing to route my traffic through a Linux box if required. I've had two instances of my credit card being misused in two months now. Despite being ...
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0answers
70 views

Windows Firewall will not start up

The only backstory I have is that, prior to me noticing that firewall had stopped working, I moved a ton of things (namely Program Files & x86 and ProgramData) from my C drive to my D drive. I ...