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.

learn more… | top users | synonyms

2
votes
1answer
141 views

Xcode.app gets scanned by socketfilterfw (OS X Firewall) at every launch

Situation: When I launch Xcode, socketfilterfw, OS X's application based firewall, starts using a lot of CPU. After some research I narrowed it down to this: socketfilterfw reads all the files in ...
0
votes
0answers
5 views

Open firewall to run nginx

I need to access my computer running nginx on port 8080, but I dont want to turn off the firewall. I know that I can allow application to connect, but I can not figure this out with nginx. Do you ...
2
votes
2answers
102 views

How to limit the bandwidth on a per-application (or per-process) basis in OS X Yosemite?

Whenever I use Homebrew or Apple Store to download a large application, it sucks all my available bandwidth and I am then unable to browse the web. How can limit the bandwidth per-application or ...
0
votes
1answer
16 views

Modifing a preference via applescript changes file group

I recently request help about modifying firewall settings via command-line (see my previous question). Everything is working, but I have noticed that whenever I use this command in an applescript, the ...
0
votes
1answer
23 views

Firewall blocks all internet sharing except port 80

MacBook Pro on 10.7.5 (Lion) static ip 192.168.10.5 using wireless connection ethernet jack connected to raspberry pi raspberry pi has static ip 192.168.2.3 when internet sharing is enabled and ...
0
votes
0answers
4 views

Change MySQL Norton-Firewall Settings

When I was enabling MySQL on Mac and I was prompted by Norton with a message saying if I wanted to Allow any computer to connect, local computers, or keep firewall settings. I would like to edit ...
0
votes
0answers
9 views

Some ports refusing to open with pfctl

I've tried opening the ports with pfctl, and a ruleset, which includes the following. pass in proto tcp from any to any port 22 pass in proto tcp from any to any port 465 pass in proto tcp from any ...
0
votes
0answers
12 views

Deny TCP CONNECT in appfirewall.log - how do I check what's causing it?

What is this telling me? socketfilterfw[22097] <Info>: dovecot: Deny TCP CONNECT (in:7 out:0) I'm trying to track down why none of my iOS devices can connect to my postfix+dovecot mail ...
1
vote
3answers
2k views

Apple Remote Desktop Admin blocked by OS X Yosemite Firewall

I'm experiencing an issue where the Firewall in OS X Yosemite is repeatedly preventing me from launching ARD Admin. Symptoms: Launch ARD and no window appears. I am forced to force-quit the ...
0
votes
1answer
20 views

Little Snitch Global rule not working

I have a little snitch rule effective in all profiles to allow any process to connect to *.apple.com Why do I keep getting request for applications to connect to apple.com? Here are 4 different ...
0
votes
0answers
42 views

OSX firewall blocking torrents outside of VPN

I've seen plenty of tutorials for this around for Windows but I'm wanting to do it on OSX Yosemite. Is it possible to configure the firewall such that torrent traffic will only ever be permitted when ...
0
votes
0answers
49 views

How to configure the pf firewall in the terminal?

I have googled it and have yet to find any good tutorials so far. Most of what I can find are for ipfw or GUI softwares. Does anyone know of any good tutorials on it? Would any of the non mac ...
1
vote
3answers
5k views

How to open a specific port in Firewall OS X 10.9.4

How do I open a specific port in the firewall? I can not use the "allow connections from application" as I want to open the port for Jenkins, that is not on the list...
5
votes
4answers
495 views

Open ports. Safe?

My friend is currently running the default firewall with "Block all incoming connection" (except the basic ones like 80). I just scanned his mac for open ports and I found the following: Open TCP ...
0
votes
1answer
235 views

Yosemite Server, adaptive firewall not stopping screensharingd attempts?

I'm not certain if the Adaptive Firewall in Yosemite Server 4.0 is just not working or just not working for screensharingd. I have a Mac mini Server in a colo and get lots of attempts at ...
0
votes
1answer
192 views

Cannot connect to SSH server from Mac OSX

Whenever I try to connect to a remote server using SSH, I get an error "ssh: connect to host x.x.x.x port 22: Connection refused" I didn't install a Firewall or something similar. I know for sure the ...
0
votes
1answer
128 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
votes
1answer
72 views

Which incoming ports do you need to open in osx firewall?

I use pf (BSD packet filter via Terminal). The recommended use of pf is to block all incoming ports and then open those you need. I want my system to work properly and don't miss things like ...
0
votes
0answers
31 views

Mac Terminal won't accept £ in ssh password?

I have an issue where I'm trying to ssh into the root account of a firewall from my Mac. I'm on the same network as the firewall. ssh root@1.2.3.4 I'm then asked for my password which contains the ...
0
votes
0answers
67 views

Firewall asks always on start if incoming connections should be allowed for one daemon

I am using Yosemite on a MacBook Pro Retina. I have a global deaemon defined to start squezelite. <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST ...
2
votes
2answers
370 views

Disable Little Snitch in Guest account

It seems that Little Snitch 3.4.1 is a rehaul of the old version and this solution to disabling it in the guest account posted here Disable Little Snitch in guest account? doesn't work anymore. When ...
0
votes
0answers
206 views

Does iOS Personal Hotspot have a firewall? Port 5353 not working

I have an iPhone 5 with iOS 8 installed. I've connected two devices to the Personal Hotspot, my Macbook Air and an Arduino Yun. Both can connect to the internet through the hotspot fine. I can also ...
4
votes
1answer
288 views

Is there a way to permanently “Deny” an application incoming network connections (i.e. no more prompts)?

There's a few apps that keep prompting me for incoming network connections, which I prefer to deny, but whenever I open these programs, I'm re-prompted to Allow/Deny incoming network connections for ...
2
votes
2answers
713 views

How can I tell Firewall to allow incoming connections for Python.app running Django

Each time I run my Django development server, I get a dialog to allow incoming connections. No matter what I do : Click Allow in the dialog box Add to the Firewall via the OS X GUI (both real and ...
6
votes
2answers
8k views

Migration Assistant fails on Ethernet Mavericks-to-Mavericks migration

I have the following setup and am attempting the use Migration Assistant over Ethernet: Source machine: Early 2009 24-inch iMac running OS X 10.9 Destination machine: Latest MacBook Pro Retina ...
3
votes
0answers
2k 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 ...
34
votes
5answers
22k views

How to get rid of firewall “accept incoming connections” dialog?

I've accepted this so many times that firewall should already remember it. For example, I get it for Eclipse when starting my java programs in debugging mode ... sometimes this dialog is displayed ...
1
vote
1answer
97 views

Configuring OS X Firewall to enable SSH/SCP only on the local subnet? [duplicate]

We would like to configure OS X to only allow Remote File Sharing (SCP) from a specific range of internal IP addresses. That way they only accessible when the user is connected via the VPN. What's ...
0
votes
0answers
143 views

Firewall partly breaks internet sharing over WiFi after upgrading to Yosemite

I used to share my ADSL/Ethernet internet connection over WiFi from a iMac to my iPhone/iPod/MacBook, but after upgrading to Yosemite (10.10) sharing stopped working with a very puzzling behaviour: ...
10
votes
2answers
2k views

Disable Little Snitch in guest account?

It's annoying as hell to let others use your computer on a guest account with Little Snitch installed, all the consecutive popups one after another...it's really ridiculous. Also in the event my ...
0
votes
0answers
84 views

I want to allow a specific port but still keep my firewall active. OS X 10.8

I have tried this from a previous post: The builtin firewall used by OS X is ipfw. To learn more about it from the Terminal you can enter man ipfw. To create a new firewall rule to allow incoming ...
1
vote
1answer
113 views

How can I use wifi only for handoff?

Ok OSX wizards... I have a dilemma. In order to use handoff/continuity at work I need to connect my Mac and iPad/iPhone to the same wifi network. Moreover, I also need to be connected to the ...
0
votes
0answers
182 views

Little Snitch reports outgoing connections from Mach Kernel — am I infected?

I monitor all my traffic using Little Snitch. Recently, I've noticed strange IP addresses making connections to the "mach_kernel" process. Most of these IP addresses seem to originate from other ...
2
votes
1answer
911 views

ntpd and incoming connections on OS X client?

I recently received a dialog box on my MacBook Air (10.9.2 Client) asking "Do you want the application “ntpd” to accept incoming network connections?". I have OS X's firewall enabled. Now, my ...
1
vote
1answer
78 views

In OS X, how does manually sandboxing an application from the internet compare to blocking it with Little Snitch?

I want to prevent inbound and outbound connections to one application. I can buy Little Snitch if it's the best option, but it feels like I wouldn't be getting much value out of it for that one use. ...
9
votes
3answers
5k views

Why does Microsoft Word need to allow incoming network connections?

When I turn on the Mac firewall I get prompted to allow the MS office apps (Word, Excel, Powerpoint) to accept incoming connections. Why is this, and is it safe to allow it ? I'm running Mac OS ...
1
vote
2answers
799 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?
0
votes
0answers
251 views

Bandwidth throttling with onboard tools in Yosemite?

Is there any way with Mac OS Yosemite's built-in firewall to throttle or queue connections from a single application, on a single port or to a certain hostname? The App in question would be the ...
7
votes
1answer
2k views

Dropbox109 process asking to access firewall on Yosemite

As the title says, I have a process called Dropbox109 asking to access the internet. I have denied it. I have Dropbox installed since Mavericks, and its been working fine (uploads/downloads/sync). ...
1
vote
1answer
126 views

What's netbiosd? I must block netbiosd?

I was asked to block netbiosd, but do not know what is. I must to block all connections from netbiosd?
0
votes
1answer
1k 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 ...
2
votes
0answers
44 views

Do pre-built Little Snitch configurations exist and are they shared?

Is it possible to import configurations that have been created elsewhere into Little Snitch? For example, a ready to go basic ruleset for someone who wants to block iCloud's more intrusive features. ...
0
votes
1answer
38 views

Is there a way to do per-application rules in pfctl/alf?

I'd like to implement a mitmproxy for a single application on my mac. Pfctl doesn't natively have (from what I can see) support to set rules based on the application source/dest of the packets, but ...
0
votes
2answers
1k 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
2answers
143 views

Mavericks firewall does not keep my choices

I'm on Mavericks and I run a python script to have a minimalist local server. Anytime I launch the server the firewall popup comes in and asks me "Do you want the application “python2.7” to accept ...
1
vote
2answers
3k views

Firewall with application rules for iPad

I've read some other topics about not needed firewall for iPad's, but I'm searching the other way of security or (more important) to help my budget. I need firewall that has incoming/outcoming rules ...
0
votes
1answer
263 views

Rdr Missing on Yosemite

I'm trying to add a rule to my computer which was working on my work computer. strangely enough there's no rdr program on my Yosemite. should I install a particular package to obtain it? sh-3.2# rdr ...
0
votes
0answers
164 views

Forwarding IP address on Yosemite

I've been trying to redirect ip address 1.2.3.4 to 5.6.7.8 using IceFloor and PF rules. I have tried the following: rdr from any to 1.2.3.4 -> 5.6.7.8 This does not make a difference and ...
10
votes
3answers
31k views

How to restrict “Remote Login” (ssh) access to only certain IP ranges?

Can someone please tell me how to restrict SSH access only to certain IP ranges (e.g. local network) and not the whole Internet? I guess this has to be done via firewall.
0
votes
1answer
392 views

Cant access firewall in system preferences; firewall tab is greyed out

I have tried multiple things to rememdy this issue. I have tried enabling and logging in as root, tried to clone the system preferences app and accessing security and privacy from the view menu and ...