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

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Windows Firewall with Advanced Security Block certain IP's on port 21

Windows by default blocks all IP's. I think I made it so that now my advanced firewall is allowing all IP's, but when I add a block rule it doesn't actually block the certain IP. I am using FileZilla ...
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1k views

Lync client 2010 and VPN firewall rule

I am running Lync client 2010 (4.0.7577.4598) on Windows 7 x64. The server for this is a corporate one, and in parallel I use a Juniper VPN to access the corporate intranet and other resources. ...
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977 views

Soluto installation fails with “Check your internet connection or firewall settings”

A few days ago, I wanted to install Soluto. The installation failed with this error message: Check your internet connection or firewall settings! Because everything was fine with my connection, ...
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130 views

Prompted to accept incoming network connections for an application defined in firewall

Each time I boot, I am prompted whether I want to accept incoming connections for the application. I have already added manually the application to System Preferences -> Security & Privacy ...
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2k views

Windows 7 Firewall blocking port even with inbound allow rule

My Windows7 firewall is blocking access to a SQL Server database on a remote server via SQL Server Management Studio. I'm VPN'd to the network the server is on, I can ping it, and I can transfer files ...
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219 views

Allow only HTTP/HTTPS comunication with Agitum Outpost Security Suite Free

Hi I use Agitum Outpost Security Suite Free and I would like allow only HTTP(80) a HTTPS(443) protocols for IN/OUT and also allow local ports for Oracle database, etc. I try use Network Rules -> ...
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254 views

Can ipmasq and ufw be used together?

If both ufw and ipmasq manipulate iptables, can I use ipmasq for a quick easy setup and then use ufw afterwards to add security or will the two just trample all over the iptables "stuff"? I'm playing ...
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355 views

Little Snitch: how to selectively allow a single script to access the internet?

I have a python script that accesses the web and each time it launches I'm prompted by my Little Snitch to allow the connection by Python. I don't want to allow globally allow Python to connect, ...
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879 views

wvMaxima Error: “Not Connected To Maxima” on Windows

Whenever I try to do anything with it, Maxima gives the error: Not Connected To Maxima I've looked around, but I couldn't figure out how to fix this on Windows. The only results I got were for ...
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261 views

Can you use the Windows 7 firewall to close ports over VPN?

I use VPN connection (specifically ipredator) for browsing over unsecured WiFi connections from my laptop (in coffee shops, etc.) - but at the other end of the VPN connection, all my ports are open to ...
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223 views

The OS X firewall causes certain applications to hang, only while AirPort is connected. How do I find the cause of this problem?

I'm experiencing three strange problems on OS X (Snow Leopard), which only appear while I am connected to a wireless network over Airport. The "Security" tab in System Preferences takes about 1 ...
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2k views

How to set up port forwarding and firewall settings for torrents using Transmsission on Mac OSX 10.5.8 with Netgear Wireless Router DG844GT?

I have picked up bits of advice here and there on the internet and got someway through this tortuous exercise (after it took 18 hours to download the first torrent I tried yesterday - magnet-link for ...
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15 views

Where is my firewall?

Using Linux Mint 17 and logged in as root... When I enter the command more /etc/sysconfig/iptables I get the error /etc/sysconfig/iptables: no such file or directory When I enter the command ...
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4 views

Server 2012 r2 — Opening firewall on remote Server Core machine for MMC (Comp. management) access

MCSA student here. I'm having some difficulty with this one. Same subnet and workgroup. Server 1 is a physical 2012 R2 server. Server 2 is a Server Core running as a VM on a workstation. As part of ...
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16 views

Windows firewall slows down Virtual Box Host Only Network with named virtual hosts

I'm trying to port my development environment from linux to windows and experiencing problems with the windows firewall. I set up a VirtualBox machine with a host only network adapter and a static IP ...
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4 views

iptables forward combined with bfifo doesnt work

I have 3 interfaces, 2 internal(wlan0,wlan01 )and 1 external (eth1) and i want to configure traffic from eth1 ,so i use iptables to send all outgoing traffic from the internal interfaces to eth1: So I ...
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16 views

Port forwarding in windows to device

Hi I'm trying to access remotely to the server of a device connected to Windows by Ethernet by port:80. I have already port forwarded that port to the PC and set the Firewall to allow access thru that ...
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7 views

set tun interface to visit the internet

I have a tun interface named tun0(10.0.1.1),and a physical interface named eth1(10.110.136.76) on my computer. I want to use the tun0 to visit the internet. Firstly, I create and set the tun like ...
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5 views

CSF - making outgoing 443 connections

I've installed CSF firewall on my linux, and I have set in my csf.conf: # Allow incoming TCP ports TCP_IN = "22,25,53,80,110,143,443,465,587,993,995" # Allow outgoing TCP ports TCP_OUT = ...
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11 views

how to block subdomain from any domain with windows7?

There are a lot of crappy websites which install spyware or badware software with a common subdomain name. For example (don't try these URLs, they are dangerous): ...
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16 views

Add link to Kaspersky whitelist in order to unblock it?

This window appears every 10 seconds saying "Malicious link blocked". I believe that the link is secure. How could I add this link to Kaspersky whitelist in order to unblock it? Note: I'm using ...
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9 views

how many rules iptables or single chain support

I have multiple user (approx 800 users), I am developing IPTABLES firewall for MAC address based filtering. My Question is HOW MANY RULES CAN I ADD IN A SINGLE CHAIN AND HOW MANY RULES CAN HANDLE ...
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17 views

Is it possible to make Norton 360 firewall always ask if an application should be allowed to communicate?

I remember back in the days firewalls would always ask the user if an app should be allowed to connect to the internet. Norton 360 firewall essentially "allows" all the traffic and you have to go to ...
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21 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 ...
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23 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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21 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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30 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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29 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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13 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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19 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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29 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 ...
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10 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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27 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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16 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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23 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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42 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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14 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

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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29 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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18 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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52 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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20 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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41 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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25 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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16 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 ...
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8 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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30 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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15 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 ...
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38 views

Refit old CISCO 5505 ASA hardware with Linux/FreeBSD software - (for the experience)

I was given an old Cisco 5505 ASA (EOL). The device hardware meets the specs for what could work in a small network, and I would like to replace the Cisco IOS with a unix open source option, like ...
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8 views

Can I block some web pages only on specific user accounts on my Windows computer or do I need to purchase a firewall to do that?

I have an administrator account and I have 2 other accounts for my dad and my brother. How can I block those 2 accounts from accessing certain websites but keep allowing my account unrestricted ...