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

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How do I stop my Mac from asking to accept incoming network connections?

I am using Syncthing, which is an application to sync files between two or more computers. I believe Syncthing (on github) needs to be allowed to Accept incoming network connections to work properly. ...
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1answer
596 views

How to connect to VPN through firewall

Our admins had blocked all outgoing ports except few like 80, 443, 110 etc. I want to use some software that utilizes other ports. So I decided to make a VPN connection to my dedicated server. So we ...
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1answer
761 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 (...
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1answer
2k views

How to get rid of annoying and quickly disappearing firewall popups on Mac [duplicate]

Possible Duplicate: Why does the Mac OS X firewall dialog recurringly pop-up and disappear by itself (without letting me respond) under Snow Leopard? Hi, Often when I have smb file shares ...
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1answer
202 views

Can Windows based computers ever be secured? [closed]

In light on this excellent article series by Ars regarding the black security work by HBGary - HBGary claims to have coded several rootkits and had access to 0-day exploits that could compromise a ...
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338 views

Lync keeps dropping because of D-Link DIR-601 router. How to configure firewall to fix this?

I saw this article, and it's exactly my problem, but my settings are a bit different and nothing seems to have fixed it so far. Why does my D-Link Router keeps dropping my Outlook and Lync connection?...
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1answer
1k views

Block all network traffic from/to laptop except explicit apps/protocols/targets?

Usually I connect my WinXP laptop via WiFi to my home LAN, but sometimes I have to use tethering with cellular phone where traffic prices are very high ($1 = 2 MB traffic counted in both directions). ...
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3answers
1k views

How can I get my routers to forward ports correctly?

My network currently looks like this (simplified): Note that Router #2 is connected to the LAN interface of Router #1. This should be familiar to anyone who has seen a standard static-IP setup ...
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2answers
496 views

Tracing what program is making a network connnection? (CentOS)

I was wondering if it is possible to find out which process is trying to make a specific network connection. On a server I support which hosts websites for about 200 users, the iptables firewall keeps ...
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0answers
325 views

Can I set up Windows 7 VPN so that only sites blocked in China are routed through VPN?

I'm in China behind the Great Firewall using a VPN service provided by a friend so didn't get blocked in the VPN crackdown in January 2015. Since VPN can slow down traffic a lot I'd like to only ...
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2answers
8k views

MacOS X: log is full of “stealth mode connection attempt”s from LAN router

MacOS X's logfile daily.log is full of lines like this: Sun Jan 29 09:51:47 nameofmymac Firewall[77] <Info>: Stealth Mode connection attempt to UDP 192.168.2.49:51855 from 192.168.2.1:53<br/&...
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2answers
1k views

Running a webserver behind a firewall I have no access to

I'm having a bad time in my student appartment: I want to run a webserver on my Laptop, which should be reachable from outside of the net. I'm sitting behind some proxy-server that passes outgoing ...
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2answers
2k views

How to enable Remote Assistance and add an exception for it in Windows Firewall from the command line?

I need to enable Remote Assistance from the command line. The equivalent of checking this box and hitting Apply. This is for automation and I tried editing the registry entry HKLM\System\...
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1answer
1k views

Why can't we turn off firewall And file sharing?

I was under the impression that turning off file sharing "makes it more secure". Especially when I like to have my firewall switched off, turning off file sharing becomes more important to me. But ...
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1answer
259 views

iptables FORWARD rule

I'm running 3 virtual machines with Fedora 19. The machine B is set up with two networks adapters and provides que channel between machine A and machine C. The machine A IP is set to 192.168.1.1 and ...
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1answer
367 views

Setting up a web server on Windows Vista Business

What I want to do is simple. I have two PCs on a home network: One Windows Vista Business edition with IIS 7 where I develop a web site. I want to be able to access that web site from a Windows 7 PC....
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2answers
1k views

Is there a way to sync/mirror website file and database between two remote servers?

Here's my situation, I have website "A" sitting behind a intranet firewall, inaccessible to the people outside the intranet. I intend to have a outsourced developer work on "A", but he's not able to ...
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2answers
41k views

How can Windows XP's firewall be made to block a specific application?

I haven't used Windows XP in a while, and as it looks, its built-in firewall. When turned on it should be blocking every application, while letting you add exceptions to let some through. However, I'...
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3answers
382 views

Looking for a new, free firewall (Sunbelt has a huge hole)

I've been using Sunbelt Personal Firewall v. 4.5 (previously Kerio). I've discovered that blocking Firefox connections in the configuration doesn't stop EXISTING Firefox connections. (See my post ...
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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 ...
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2answers
115 views

Firewalling VirtualBox: restrict host inbound connections to guests only

I have Windows7 + Cygwin and VirtualBox. I would open a listening port on the host accepting only inbound connections from the VMs. Note: In many case the server services running on the host can be ...
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1answer
95 views

is it possible to link different email accounts to different network profiles?

My work firewall for wired internet blocks almost every port except http, https and maybe a few other web-related ports (993, 465 and everything else to do with IMAP is blocked). Impenetrable for, ...
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2answers
974 views

Open a port safely in firewall for a PC connected to Internet

This is related to this question PCs in same network can not communicate My real problem was that I have a web application I want to test running in PC1 but I noticed I could not even ping the machine....
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2answers
11k views

openvpn port 53 bypasses allows restrictions ( find similar ports)

scenario of wifi : i'm using wifi in hostel which having cyberoam firewall and all the computer which uses that access point. that access point have following configuration default gateway : 192....
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1answer
69 views

unable to start apache after changes to rc.conf and resov.conf

I had a working configuration this morning with the following simple /etc/rc.conf ifconfig_rl0="DHCP" ifconfig_xl="inet 192.168.1.11 netmask 255.255.255." defaultrouter="192.168.1.1" I added the ...
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3answers
749 views

Stealth Ports even while communicating?

I was using a port probing site/program called ShieldsUp! to scan my ports. It reported back that all of my ports were "stealth", and in their words Your system has achieved a perfect "TruStealth" ...
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1answer
340 views

Block a Subdomain in Windows Firewall

Gamespy is ceasing its Master Server support for many games at the end of May, including Crysis 1, Wars, and 2. I have worked with Crysis 1 and Crysis Wars for a very long time, and now the entire ...
0
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1answer
455 views

what ports to open up for GitHub to install and work?

I want to use GitHub on a server where user accounts are not supposed to be able to go online otherwise. The GitHub Windows app does not even install without users' downloading it themselves (see my ...
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1answer
599 views

Vista Windows Firewall - how to block all ports apart from 1 on a particular subnet?

This is fairly easy in Win7 because that version of Windows Firewall allows you to block a port range e.g. 1-79,81-65535, leaving only a single port open. However Vista (at least by default) doesn't ...