Typically software that runs to prevent network traffic from reaching a computer. Also a hardware device that works on a network level rather than running on a single computer.

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2answers
132 views

What are the numerous incoming connections I see on public wifi for?

In general I have incoming connections disabled by my security software (Little Snitch). But even when I do this, on public wifi, I see numerous incoming connections for netbios and mDNSResponder ...
3
votes
1answer
1k views

How can I enable DVD or CD Sharing with the Firewall on?

I'm trying to enable "DVD or CD Sharing" in the System Preferences. When I enable it, it says that the Firewall is blocking it. If I go into the Security > Firewall settings, I see that the first item ...
1
vote
1answer
363 views

OSX Firewall: Forwarding Ports & Ignoring Non-Local Requests

On my production Debian server I use this to forward requests that come in to port 80 to a non-root process running on port 8080: sudo iptables -A PREROUTING -t nat -i eth0 -p tcp --dport 80 -j ...
0
votes
1answer
7 views

Blocking internet access for a specific application on Mac OS X

How can I block internet access to a specific application in Mac OS X? I need this to be done from the command line and hopefully use the ipfw terminal command. Specifically I am looking to toggle ...
0
votes
1answer
638 views

Migration Assistant fails on FireWire Mavericks-to-Mavericks migration

I have the following setup and am attempting the use Migration Assistant over FireWire: Source machine: Early 2009 24-inch iMac running OS X 10.9 Destination machine: Latest MacBook Pro Retina ...
0
votes
1answer
411 views

Is it possible to block a specific IP from attempting to connect to screen sharing?

I have noticed for some time that the shared screen icon flickers on and off on my menubar every couple of minutes (MacBook Pro, MAC OS X 10.8.4). I thought it was a glitch or a bug. I've checked the ...
0
votes
1answer
343 views

How to configure client OS X VPN (L2TP) connection so you do not loose access to intranet?

I am looking for a solution for configuring the VPN on OS X so you do not loose access to internal network. In fact I want to use the VPN only to enable access to different external services that ...
0
votes
1answer
67 views

How can I permanently suppress the firewall access prompt while developing a server program

I have a server process that I am developing that opens listening TCP sockets. Each time that happens, the firewall opens a dialog with the text "Do you want the application “server” to accept ...
0
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1answer
82 views

How can I disable the firewall on OS X after forgetting how I set it?

I have enabled an option on my mac to ask for permission every time I open an network application, But I can't seem to find out how to turn it off. Where would I disable the below dialog?
2
votes
0answers
286 views

Configure ipfw to filter by ip range

I am a Linux user and very new to OSX. I have an OSX 10.7.5 "Lion" server that I am configuring as a webserver. I only have shell access. I am tryin to configure the firewall, but ipfw is quite ...
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vote
0answers
29 views

CalenderAgent: howto allow connection only if needed?

I use LittleSnitch, and there i can see that CalenderAgent makes still connection to Google and iCloud even iCal is closed. Because of several reason..., I want to allow CallanderAgent making ...
1
vote
0answers
52 views

MacOS 10.6 firewall treats IPv4 and IPv6 packets differently

I'm develping a wireless MIDI controller. When connecting to a Mac running Mac OS 10.6, everything works fine, so long as the controller attempts to connect to the Mac using IPv4. When using IPv6, I ...
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vote
0answers
219 views

No Jailbreak Firewall for iOS (iPhone) for iOS 7

Is there a non jailbreak firewall for the iPhone or is there some way to set one up, somehow?
1
vote
0answers
27 views

Enforcing firewall (native or 3rd-party)

We're currently doing PCI compliance, and one of the requirements is that mobile devices that have access to systems involved in processing card data have personal firewall software installed which ...
1
vote
0answers
1k views

FTP: active vs. passive, command line vs. browser

Here's a weird one for everyone. I'll use AskDifferent because my test bed is on a Mac, but I don't know that the underlying issue is specifically Mac. My Mac is behind a NAT wall. Let's call my ...
1
vote
0answers
399 views

Macbook Pro 10.7.5 I have internet connection but can't open any page

I need some help. My internet was working fine and all of a sudden I am not able to open a web page. I went through some of the steps you recommended to other users, such as adding DNS 208.67.222.222 ...
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vote
0answers
517 views

How to open port 8080 on external interface?

I am running a server on port 8080, which I can access fine as localhost:8080 or 127.0.0.1:8080. However, assuming my IP address is 192.168.1.15, how can I access the port using 192.168.1.15:8080? ...
1
vote
0answers
102 views

Ip blocked since I updated my Mac to Mountain Lion

Since I've upgraded my mac from lion to mountain lion, the ip 5.9.31.48 (api.shellycloud.com) appear to be down (ping said that "Host is down"). So I think that there is somewhere a firewall rule that ...
1
vote
0answers
2k views

How do I use pf/IceFloor to block an outgoing connection to an IP address?

I am running an application that regularly phones home and reports a little more information than I'm comfortable with. I would normally add the reporting server's hostname to /etc/hosts, but the app ...
1
vote
0answers
194 views

Why does my firewall block connections even when it's off?

This most notably happens with iChat. I don't use a firewall, never have on this computer. When I first started using iChat (when Skype 5 came out and sucked hardcore) I couldn't video chat with ...
0
votes
0answers
100 views

Configure OS X Application Firewall to allow non-signed software with UDP protocol

I understand OS X has the Application Firewall which allows you to control connections on a per-application basis, rather than a per-port basis. I have developed an application that utilizes UDP and ...
0
votes
0answers
208 views

Mail.app can't connect to network (can't reach servers)

One day I woke up and could not use my Mail.app anymore :( Mail can't connect to any my account related server, either POP, IMAP or SMTP Why ? I don't know. In Log file I see that: When I try to ...
0
votes
0answers
19 views

Pf configuration for tor

How an I configure pf firewall to block all allow tor bundle? I have the rule : block pass out log on $_interface proto tcp to any port { 100, 200 } I have tor configured with config button ...
0
votes
0answers
79 views

Why does System Preferences -> Security & Privacy get a spinning rainbow beach ball (i.e. 'Not Responding') when accessing it?

When in System Preferences, if I click on Security & Privacy, I get a well-known spinning rainbow beach ball, meaning that I cannot access the Firewall settings from System Preferences. What could ...
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0answers
150 views

What app is this ScannerEventWatcher.app?

After enabling the Firewall, I got this message: Do you want the application “ScannerEventWatcher.app” to accept incoming network connections? Clicking Deny may limit the application’s ...
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0answers
96 views

can not connect to RTMP connection with my mac

I need to connect to this site for online lectures and before signing up there is a page which tests our connection after pressing START Button. The connections uses RTMP protocol. When I start the ...
0
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0answers
121 views

Can someone help me with errors in my pf.conf file? OS 10.7

I keep getting errors about the order of my rules and that there are syntax errors in my pf.conf file, and after troubleshooting for days, I thought I'd ask for some help. Please take a look and let ...