OS X :: In Which Scenario Is It Convenient To Turn On The Firewall?
Jan 7, 2011
- In which scenario is it convenient to turn on the firewall? (System Preferences > Security > Firewall > On)
- What are your thoughts? Should I have it on? I do have a router (Linksys E1000) which delivers wirelessly a signal to my MacBook Pro.
- If I turn it on, will it load some heavy process? Will I still have normal internet access to all my apps? (including parallels windows 7 virtual machine, programs from crossover that access internet, and of course firefox and safari)
- How does the firewall work? Is it going to be asking all the time about programs trying to access the internet? is there an apple article on firewall?
- If I turn it on, I can always turn it back off and it will all be right back to normal, right?
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Jul 1, 2008
What's the best (Software)Firewall solution for OS X. At the moment I work with a mixed environment ( ipfw, Apple Application Firewall and Little Snitch ). It seems to be secure, but this is an absolute overhead. I noticed, that my internet performance slowed down. For the moment I'm not able to spend money on a hardware solution. I'm searching for a complete Firewall software that controls incoming as well as outgoing connections ( Apple seems not to be interested in distributing a complete and easy waterproof solution ). Unfortunately ipfw offers no application control. I'm not a security expert, thus I need an easy configurable firewall.
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Nov 2, 2009
I've got a problem with my new mbp, mac os x snow leopard. It can't ssh. I've got no firewall running, can do ssh localhost and can ssh *into* my mbp from another machine, but I can't ssh from the mbp to another computer. If I do: ssh -v 192.168.0.6, hich is my wifes debian comp, I get:
OpenSSH_5.2p1, OpenSSL 0.9.8k 25 Mar 2009
debug1: Reading configuration data /etc/ssh_config
debug1: Connecting to 192.168.0.6 [192.168.0.6] port 22.
debug1: connect to address 192.168.0.6 port 22: Operation timed out
ssh: connect to host 192.168.0.6 port 22: Operation timed out
I've tried uncommenting "Host *" and "ForwardAgent yes" in /etc/ssh_config (I read you had to do that on some other forum), but it doesn't help. I can ssh into my wife's computer using any other os than mac os x. This is extremely annoying, since I can't comfortably fetch my old files to this new computer.
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Sep 2, 2010
I have a new mid 2010 iMac 27" quad core 2.8
Is it necessary to enable the firewall, which is off by default.
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Sep 6, 2010
I have a 21.5" iMac connected to my basement ADSL Modem/Gateway via 25ft long UTP cable. Other devices (PS3, HP Laptop using Win 7, etc, etc.) are connected to the same ADSL Modem/Gateway via wireless. If wondering, this ADSL Modem/Gateway has its own firewall enabled and its application selection (for port forwarding) customized as well.
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Jul 1, 2009
I live in China, its great, but I hate the firewall. Ever since they blocked Youtube, I've been trying to get a good connection to a proxy server. I still have not found a good enough proxy to watch youtube. So I am looking for a paid VPN, but I don't know what would be the best to go for. Since my connection in China is bad enough I need a VPN that doesn't slow down my connection any more.
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Aug 1, 2009
When I couldn't get my printer to work, I turned off my firewall to connect to it, I left my firewall off for a couple days. I found this string of allowed traffic from the same Ip address.
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Aug 29, 2009
I noticed after my initial install yesterday that the firewall does not appear to be on by default. Just throwing it out there so people can take action to activate the firewall.
I haven't checked to see if ipfw is doing anything out of the box, but I imagine not.
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Sep 13, 2009
Just curious how important is using a firewall?
I currently have two Macs where one is a wireless base station using an older mushroom shaped Airport extreme, using a WPA/WPA2 network. Both my Macs have just had a fresh install of 10.6.
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Nov 24, 2009
Since the Mac has it's own firewall, and the Mac gives the VM it's connection, is a firewall actually needed on the VM itself?
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Nov 25, 2009
ive just been looking in system preferences and saw my firewall was off. I immediately turned it on. I don't know why it was off, i have never turned it off before, im really worried now, how can i check for bad things on my mac?
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Jan 26, 2010
Guys, how do you bypass firewall using SSH? Using terminal, i typed in "ssh username@ip" and it brings my command prompt from home. So I'm guessing I successfully SSHed, but what to do now?
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Apr 28, 2012
I have an emac OS X 10.4.11. How can I tell if I have iMovies and a firewall?
Info:
eMac, Mac OS X (10.4.11)
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Jun 13, 2012
how do I add the applications I have installed on my iMac into the Firewall? I click the plus sign and then navigate to the app that I use such as Plex and Hulu? To add them? Or do I open the apps up then click allow?
Info:
iMac, Mac OS X (10.6.2), iPhone 4
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Sep 12, 2010
I am new to Mac and wanted to see if there was a way of testing the firewall in a Macbook.
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Jan 13, 2011
I have two computers that seem to have stopped saving my firewall preferences after upgrading to OSX 10.6.6. Each time I start each computer, the system asks whether I want to allow or block connections for a variety of programs, including iTunes and several UNIX commands (cupsd, compressord, ftpd, krb5kdc, qmasterd, qmastertaskd,smbd). Why aren't these settings being saved upon shutdown? Is anyone else experiencing a similar problem?
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Feb 27, 2008
Where is the location of the firewall log in Leopard?
When I click on Security> Firewall>Advanced> Open Log nothing happens.
I can't access the internet since I can only connect to a private address starting with 169.254.xxx.xxx
I'm thinking some firewall issue has suddenly made not able to use DHCP to access the internet.
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Feb 4, 2009
In the MAC OS X Firewall Prefs, you can choose :
Only Allow Essential Services.
What does this exactly mean ?
What are the essential services ?
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Feb 4, 2009
As shown in this Jpg attachment, i was wondering if there is a similar version of this USB stick Firewall
for MAC OS X ?
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Dec 8, 2009
A couple of days ago, I thought I'd try a 3rd party firewall to beef up security on my 2008 MBP running 10.6.2 on an ethernet connection using a router (nothing changed there).
I installed Little Snitch, tweaking its settings (don't remember what I tweaked) to customize it to my preferences as I went thru two 3-hour demo periods. Then I uninstalled it (using its own uninstall). I also tried Noob Proof to see if a free program might serve, but wasn't happy with that one, and uninstalled it using AppCleaner.
At some unknown point during this 24 hour period, I lost my internet connection, and I can't get it back.
Things I've tried:
-Ran network diagnostics several times - it says I've got a good connection, and Activity Monitor shows small amounts of data being sent and received.
-Turned Mac's firewall off & back on a few different times. Can't get online even when the firewall is off.
-Turned on the guest account and logging into it. Can't get online thru the guest account either.
-Re-installed Snow Leopard just in case it might re-set whatever is wrong.
-Looked at LOTS of logs (including Little Snitch's log) to see if I could find the source of the trouble, but while no dummy, I'm also not an expert at reading logs.
-I've also tried connecting to Software Update for a direct connection, thinking maybe it was a browser issue, but can't get connected to anything, anywhere, anyhow.
Any ideas?
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May 4, 2010
Whats the general consensus on OSX Firewall. It's not enabled by default and I never knew the option existed. Is it problematic at all, or prone to slowdowns. I am behind a home router
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Feb 14, 2012
i've installed the recent lion update and i cannot edit my firewall. can't even access it. clicking the firewall tab just darkens and stays dark. i tried entering this as per the help/support doc:
cd /System/Library/PrivateFrameworks/NetworkConfig.framework/Versions/A/Resources/
-bash: cd: /System/Library/PrivateFrameworks/NetworkConfig.framework/Versions/A/Resources/
all i got was a 'no such file or directory.
Info:
2.66 Mac Pro, Mac OS X (10.6.7), Cintiq 21UX
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Nov 15, 2010
When I start tunes it always asks me if I want to allow incoming access.When I try and synch to Apple TV it tells me I ned to open port 3689.There are many posts on support forums about these issue with previous OS releases
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Aug 31, 2010
My Mac and modem had easy passwords and I noticed someone connected to me in the attached servers list. At one point my wifes PC announced that the modem had no password. I checked my firewall that was not on and allowıng all connections. Need help as I do banking online etc and did turn on Console logs but to be honest I dont understand it all and only turned it on when I thought I had a problem.
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Sep 14, 2010
I just bought an iMac and everything is running smooth except that occasionally (but it's getting more frequent) my web browser won't conect. my internet connection is working fine, I'm still getting emails and downloads are all working but not my browsers I have tried safari firefox and camino but it's none of them are working. Does anyone know what s wrong is it a firewall issue?
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Jun 11, 2009
I boot up or log-n, itunes asks me to allow/block it from the mac firewall. No matter what I do, it asks every-time!
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Jul 28, 2009
I have my firewall set to "allow specific services and applications."
I noticed today that DashboardClient, System Preferences, and a program called "ScreenSaverEngine." Are all set to allow..
Typically i'd just want itunes so I can use simplify media, and safari/firefox because i think it has to be enabled.
What are the parameters for allowing a program incoming access in general - i seem to get asked it now that I have this option checked and wanted to make sure? I find it odd that i have some system utilities on my list set to allow - is it just me?
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Feb 12, 2009
I am setting up a studio of 40 new Macs and can't find anything relating to setting up the Leopard firewall. All users will have Standard (mobile) accounts on Active Directory domains, and will be using the Adobe CS4/VMFusion with XP/Office 2007. If I have the firewall on 'Set access for specific services and applications' will it block the applications and prompt for an admin password?
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Nov 13, 2009
How do i bypass the Firewall that Limewire is detecting on MAC OS 10.6 (Snow Leapard)? I have disabled the firewall and it still doesn't work.
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May 12, 2012
I've tried turning it ff and on via the power button several times, but it always goes back to the white screen.
Info:
MacBook Pro (13-inch Mid 2010)
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