Internet Sharing and Firewall

I am having a difficult time using internet sharing to download files and access email using Mail. I can go online with my browser, but other services like Mail and downloading files doesn't seem to work.
I feel like this is a firewall issue. Can someone tell me how to configure my firewall settings to work better with Internet Sharing?
I am using a G5 Mac to Internet Share to my MacBook via Airport.
Thanks for your help.

If you need help opening the right port in the Shaing
Pref Pane... give a hollar.:-)
Maybe you can help me? I tried to set up new openings in the Firewall pane, but it didn't seem to do anything. Am I in the wrong place? I did this on the mini that is doing the sharing. I selected "new..." and typed 110, 25 in the TCP field.
(I first noticed the "browser ok / mail not ok" issue when using Parallels, and then saw the same with Mail in OS X. Connecting directly to an Airport Express works fine, so it looks like it's the sharing.)
mini dual core, MacBook C2D Mac OS X (10.4)

Similar Messages

How can I use Internet Sharing with Firewall on ?

Hi,
My PowerMac G5 is connected to the internet via Ethernet. I share the connection to a Powerboog via Airport using internet sharing. Everything is working fine except when I turn the Firewall on. After reading http://docs.info.apple.com/article.html?artnum=107653 I tried opening port 443 but it still does'nt work. I'd like to be able to use internet sharing with the firewall on. Anyone can help me ? Thanks!

Hmmm, how curious... I never had to do that in 10.4.7 or 10.4.8... the only ones I ever tried Internet Sharing with.
I'm wondering if turning the Firewall on after the Internet sharing is what's doing it? Just for kicks you might try turning off Internet Sharing, then Firewall on, then turn on Internet Sharing.
If that doesn't work, then I'd personally try trashing...
/Library/Preferences/com.apple.sharing.firewall.plist
Then reboot and try the Firewall again.

Internet Sharing and AirTunes at the Same Time?

I've seen similar posts on this question, but none exactly on. I think I have a fairly basic situation.
I'm using my G5 as a base station to broadcast Airtunes to another room. G5 is connected to the Internet via cable modem. Using Airport Express as receiver.
Now, I just bought a powerbook and want to use the G5 for wireless internet access by the PB. But when I turn on internet sharing on the G5, it seems to cut off/shut down the airtunes network. Airport icon looks quite different. Conversely, when I get the airtunes working, the sharing can't be turned on.
Anyway to sort this out so that I can run both at the same time?
thanks
G5 Mac OS X (10.4.8)

I believe, in theory, you should be able to do this. I am assuming from your description the G5 is connected, via Ethernet, to the cable modem and you want to use Internet Sharing to use it's wireless to commuicate with both the AX and the PowerBook. I think if you set up Internet Sharing and add the AX as a "wireless client" this may just work.
Let's double-check your settings...
To setup for Internet Sharing (Wired to Wireless):
Enable Software Firewall
System Preferences > Sharing > Firewall
- Click Stop to start the software firewall
Setup the Network
Cable Modem > (Ethernet cable) > [Ethernet port] Mac_#1 > (wireless) > Mac_#2
Setup Port Order
System Preferences > Network > Show > Network Port Configurations
- Verify that "AirPort" and "Built-In Ethernet" are enabled.
- Verify that "Built-In Ethernet" is at the top of the list, followed by "AirPort".
- Click "Apply Now."
Configure the Internet Connection
System Preferences > Network > Show > Built-In Ethernet > TCP/IP
- Configure IPv4: Using DHCP
- Configure IPv6: Automatically or Off
Enable Internet Sharing
System Preferences > Sharing > Internet
- Share your connection from: Built-in Ethernet
- To computers using: AirPort (checked) (Note: Uncheck all other entries in the list.)
- AirPort Options
-- Network Name: <anything you want>
-- Channel: Automatic
-- Enable encryption (using WEP) (optional)
-- Password: (optional)
-- Confirm Password: (optional)
-- WEP Key Length: (optional)
-- Click OK
- Click Start
To set up AirTunes on the AirPort Express Base Station (AX), using the AirPort Admin Utility, connect your computer directly (using an Ethernet cable) to the Ethernet port of the AX, and then, try these settings:
AirPort tab
- Base Station Name: <whatever you wish or use the default>
- Wireless Mode: Join an Existing Wireless Network (Wireless Client)
- Wireless Network: <select the Internet Sharing wireless network>
Music tab
- Enable AirTunes on this base station (checked)
- Enable AirTunes over the Ethernet port (optional)
- iTunes Speaker Name: <whatever you wish>
- iTunes Speaker Password (optional)
In iTunes:
iTunes > Preferences... > Advanced > General
- Look for remote speakers connected with AirTunes (checked)

How to use internet sharing and airtunes?

Question? how to use internet sharing and airtunes?
OK I have following working separate situations.
1. I can share my internet connection : is a router to ethernet cable into mac. Then over airport built in to my iMac ....... to other wireless computers, iphone etc...works fine.
2. the I have a air port express that is only used for air tunes. I guess i had create a separate network for that. can select that in iTunes. Works.
problem is can not use both at the same time!
OK so Now I would like to combine the two; share the ethernet over airport on mac and send music to air port express....
the main reason for this is cause I now have an iPhone and want to use the internet and the remote app to control iTunes from all over the house.
I have not the first idea where to start.
Any hints or tips will be greatly appreciated.

The airport express is a router. And, only one router can be used to obtain an IP address. So in your airport express configuration set it so it does not obtain an IP address.

Internet Sharing and machinename.local

Hi! I've recently set up my Mac mini (10.4.6) to run Internet Sharing, and ethernet connections to any laptop I connect works beautifully. (For exactly what I did to get this set up, visit http://www.aleph0.com/computing/macosx/dhcp-setup/ , but nothing there is really beyond the basics you might expect.)
One tiny feature I don't have working is the ability to connect the "internal" computer and the mini using aliases---only IPs are possible. For instance, the "Sharing" panel suggests other computers can connect to the mini as "natalie.local"; similarly, when I connect a Windows laptop named "will" to the mini, /var/db/dhcpd_leases even shows it's connected as will---but I can't connect from one to the other using those names. (i.e., via http---both are running web servers---or via sftp---both are running sshs as well), while connecting with the numerical IPs works fine.
So after that ramble, I wouldn't be surprised if "natalie.local" is really only suppose to work with AFP, and will with SMB, but thought I'd ask for suggestions. I've considered playing with DNS on OS X to work on such a possibility, but I thought I'd ask first....
Thanks for any pointers!
CDJ
Mac mini (Original) Mac OS X (10.4.6) Running Internet Sharing (connected to Internet via AirPort, "internal" via ethernet)

Otherwise run your own dns server on your LAN.
This is what I expected to have to do on the mini---I have a DNS server, but the mini with Internet Sharing doesn't send any information to it; that's what I'd like to figure out how to do. Perhaps stepping back and stating the basics of what I'd like would help:
I have a mini running 10.4.6 (natalie), connected (via the rest of my home LAN) to the Internet via AirPort, and the ethernet jack is unused. I'd like to connect a laptop (will) (that uses DHCP, but OS- and software-unspecified) via ethernet to the mini, access the Internet, and allow the two machines to address one another as "natalie" and "will" (or "natalie.local" and "will.local", etc.) for TCP/IP commands, instead of "192.168.2.1" and whatever address is assigned to will. This works after installing Bonjour on will, but I'd like to not have to install Bonjour on the laptop (specifically, I'd like to connect any random laptop that can use DHCP).
Am I wrong in thinking there should be a way for natalie to "take over" this portion of the DNS, or at least update my LAN's DNS server so that the process is still seamless for will?
Thanks again,
CDJ

Installing CC tells me to check internet connection and firewall settings etc won't setup so I can download apps

Can anyone help with setting up my CC tells me to check my internet connection and firewall settings which are ok. I have a PC

my internet connection and firewall settings which are ok.
Most likely not, but since you haven't provided any proper system info and other technical details like what internet connection you actually use we can't advise specifically. Start by reading this:
Sign in, activation, or connection errors | CS5.5 and later
Mylenium

Firewall, Internet Sharing, and Leopard

Hi guys,
Here is my scenario: I use my Macbook to connect to a public wifi network in my apartment complex. I use my Macbook for internet sharing (wifi to ethernet) and have a Win!@#s machine which I use for gaming hooked up to the ethernet port. In Tiger, I was allowed to let the game (World of Warcraft) through the firewall by adding the tcp ports it used. But in Leopard I am not given the option to enable certain ports, only applications. The problem is, the application actually runs on the Windows machine, so I can't just select it.
I've been reading a bit and it appears Apple did away with the port filter method and has adopted this new application only method. I find it frustrating and the developers should have known better than to disable this feature. It has severely limited the security in the operating system and has cast away power users like myself.
Is there anyway to work around this issue? Either with 3rd party software or some other way?
Message was edited by: Frank Cabrera

I agree, Apple really blew it by trying to re-invent the firewall.
Not having the ability to open or block traffic by port and IP address was a terrible idea.
Limiting it to Applications only makes the firewall almost useless.
I would like this idea if I was also allowed to choose for myself.
This is a technological step backwards!
Many many people feel the same way and some are now relying on the still built in ipfw which is a commonly used and quite robust firewall. Unfortunately it is very difficult to configure unless you really know what you are doing. I am sure this was one of the primary reasons why Apple made this decision.
Search around this forum for ipfw and you will find a bunch of info. Just beware it is not exactly user friendly even with some nice GUI apps that help you configure it.
Send feedback to Apple about this or it will never get fixed.

A few questions about internet sharing and security

Hi, I have an iMac connected to my aparment complexes' wireless network. I realize this isn't the safest way to be online so I was wondering what I could do to protect my computer. When I open a finder window I see all the other computers listed in the "shared computers" menu and this makes me nervous that mine is showing up in others' finders as well. I would like to know how I can prevent everyone else from seeing my computer on our shared network, and possibly prohibit those that still can see my computer from getting access to it. Sounds a little perinoid I know, but it just bothers me to know people have potential access to my files and such. Also I have an Apple tv and wireless printer. I was wondering if there was a way to connect my own wireless router to my iMac (via the ethernet port) directly so that I would have an exclusive (to me and possibly my roomates) connection to wirelessly print, transfer media to/from the Appletv, and rent and buy things from the Appletv online, but also stay connected to the internet. I hope that wasn't confusing, but would appreciate any ideas.

jbloc,
Well, the main problem for you is that you are on what is essentially a "public" network. As far as your Mac is concerned, however, all you need to do is turn your Firewall on and not run any services. It is only when you might run some service that your computer would show up in someone else's Finder (if it is another Mac), or in the "Network" window (in Windows).
Even when you do have services running, other users must have the proper credentials in order to gain access to those services.
Really, the only way to completely protect yourself and firewall your entire network would be to subscribe to some broadband service on your own, and have your router connected to whatever modem is supplied. The router would then be protecting your entire network, and only your devices would be connected. You would be the only one to see and potentially access those devices. Otherwise, you just have everything left out on a public network, and you would be dependent solely on the security you are able to set up.
Scott

UTorrent, Internet Sharing and Port Forwarding: Horrid Trifecta

Every good question has a couple of miles of back story, so here it comes:
I bought a Windows PC recently, and one of the first programs I downloaded was uTorrent. I have an iBook G4 running 10.4.8, but I have no wireless router, so I thought I would use internet sharing to get my new laptop off the ground. Everything connects great, internet sharing is wonderful on the web, but then I use uTorrent and notice that I'm uploading at nearly 3 times the speed I'm downloading, even when I only have 12kb of a file. I then notice the small icon at the bottom of the application that looks like a warning flag that my computer is confused, and I figure out that the problem is my new laptop has no ears, or rather, no listening port through which uTorrent can increase the speed of my DOWNloads. Further searching reveals that the traffic on the appropriate port is not getting through, hence I try to figure out how to manipulate internet sharing into forwarding the appropriate port range. I found Brickhouse, or as it is now known, Flying Buttress, but the program is remarkably confusing (to be perfectly honest, I'm not that bright). I cannot get FB to forward the port, no matter how hard I tried (every time I clicked Start IP Sharing, the it wouldn't work). So I can't use FB. I thought I would be clever and create a network on my Windows PC and share it with my iBook, but apparently my iBook refuses to share the Windows internet.
So now I am stuck trying to figure out how to get this Windows PC to receive traffic on TCP/UDP ports 10000-65535 through my Mac. To be honest, I really thought that the Mac would easily be able to forward the ports (is this in store for Leopard?), and I was a little disappointed the whole thing was so frustrating, but then I tried to setup an ad-hoc network on the Windows PC and realized that my Mac is still FAR easier to use, despite is insufficiencies.
So, long story short, I need help forwarding ports through internet sharing. If you can help me use FB, that's great, but to be honest, I would like a cleaner solution if possible. So my question is: How do I get my Mac to share port traffic with Windows if it is running internet sharing?
iBook G4 Mac OS X (10.4.8) Other Computer: Windows XP, other specs available on request

I was hoping more for a permanent solution that doesn't cost $100. Did I mention I'm in China? That program seems great and all, but I have the same technical difficulties I've had with FB. I can get the thing running and still have an internet connection on my machine, however, the port mapping or port forwarding or whatever you wish to call it doesn't actually work. These programs make it very difficult to understand what's going on; I checked the IP Address on my windows machine and used it as the actual address for the port I wanted to forward, I applied the settings and absolutely nothing changed on the windows machine. I went to portforward.com to check if the port was forwarded properly and still no response. This will sound stupid, but when I hook up the windows machine to the router through ethernet, it works perfectly, no forwarding required, so it is essentially my mac that is blocking or absorbing the intended traffic, but if I hook up the windows machine to the router, I have no internet for my Mac (I'm not sure if that's a problem with my Mac or with ICS). Can you explain to me how to use this program to forward ONE port, and ONLY forward one port (or a range of ports would be even better) without all of its inane firewalling that blocks all the internet traffic? Or am I just hopeless on this issue?

Airport Internet Sharing and Double Nat Issue on the road

The Airport express is a very handy little piece of hardware that is particularly easy to pack in a luggage and carry along for those of us that are spending lots of time out of the office and home.
So here is the scenario when I travel and check in into an overseas hotel: I got two iphones, one local network, one my home network, and a Mac Book Pro, and soon, [when it finally ships], an iPad.
That makes it at least 3 MAC addresses in one room, and if i have any visiting colleagues to pack up a presentation, I will have more.
Usually hotels in Asia are well equipped with ethernet points in every room. The problem comes when I want to allow all my gears to connect to the internet.
I can use the Mac Book to share its ethernet connection while tethered to the plug, which not only turns it into an unlikely desktop, but also do not champion stability when it goes in stand by or sleeps and at times it even mixes up which is the access point to the net. Therefore this does not seem to be the best solution.
I can put the AE in bridge mode and plug it straight to the ethernet. But most hotels internet access are designed to charge per MAC address, so every time the router assigns via DHCP an IP to one of my gears it requires to accept new charges for that gear, even if they are all in the same room. This definitely does not seem right either.
Now if I configure the AE to share a public IP address and force it to ignore the double NAT warning, the AE light turns green but the internet sharing does not seem to work at all.
My two questions are:
1) Why can't the AE be configured like the Mac Book to have a simple "Internet Sharing" protocol that will be always live and not going to sleep or stand by like the laptop [As the AE is design to be always online as a wireless connection].
2) is there any way to make that "Share a public IP - *** double NAT" work?
Any feedback is welcome.
Thanks. M

Hi Bob,
thanks for your reply. Yes the only way to work it out on a typical hotel set up is to adopt the bridge mode and sometime the do waive your extra logs in. But I am not always so lucky and I often need to come up with less optimal solution.
This is a bit disappointing when you a have a AE in your luggage and you can't use it properly.
Yet my Mac can work the problem out effortlessly by just "Sharing a internet connection" with the only major limitation of being physically connected to the Ethernet cable.
Why can't the Airport Express do the same thing? Basically the AE could share the internet connection like the Mac Book, i guess introducing a secondary layer of NAT after the Hotel modem/router NAT setup [which is what the MAC Book is doing].
If AE can't do that at all then I guess soon we will just end up shelving it.
I wonder if this is an actual hardware limitation, MAC Book can wire TCP/IP flow to different sources on a double nat and AE can't, or this is just a software limitation and Apple could fix it with a firmware upgrade.
Any thoughts on this?

Update downloads fail, initial app installs work fine, Windows 8.1, internet connection and firewall settings fine

I just installed the CS6/CC applications I use without any issue. I then was prompted to install various updates. All the updates failed and the message says the downloads failed. I checked my internet and firewall settings and they are fine. I the was able to install a different CC application I hadn't installed before. That process worked fine so I retried all the updates. They all failed again and for the same reason. I have even tried a cold system reboot. Nothing works. I am really baffled.
Has anyone run into this and, if so, were you able to figure it out.

pre cc updates: http://www.adobe.com/downloads/updates/
cc updates: http://prodesigntools.com/adobe-cc-updates-direct-links-windows.html
cc 2104 updates: http://prodesigntools.com/adobe-cc-2014-updates-links-windows.html

Photobook order stops after preparing files due to Internet issue and firewall. I couldn"t correct

Photo book ordering stops at preparing files. Says I don't have Internet connection and or Firewall is blocking Elememts. I turne off firewall and my internet seems ok.

You have Acrobat Pro on your system. It will try to open PDFs, and of course it will fail. You must uninstall it. Then, you will need a PDF reader. So install Adobe Reader. That seems quite simple, but perhaps something is wrong. If anything goes wrong with these two steps (1) uninstall Acrobat Pro (2) install Adobe Reader, then please let us know the details.

Internet Sharing and Xbox 360

I want to share my Airport connection via ethernet to my Xbox 360. When I go to the internet sharing pane in system preferences, Ethernet does not show up as an option to share over. Any suggestions as to how to get it to show up? I have a late 2006 macbook.

I also recently got an Xbox and have been researching this same topic. This has been the most consistent solution to the problem that I've found:
you can share your internet connection through your Mac using a wireless network, but you have to connect your Mac to the Xbox via ethernet:
modem > wireless router > (via wireless) mac > (via ethernet cable) xbox (equipped with the Xbox wireless adaptor)
most people advising this solution were using a portable mac so it was easy for them to move it around.
The question that I still have not found an answer to is this: can I connect my Xbox WIRELESSLY to the internet via my iMac's airport connection? i.e.:
modem > (via ethernet cable) iMac > (via WIRELESS shared internet connection) > Xbox
I'm going to try the first solution for my 1-month free membership, but would rather not have to use my macbook as a wireless bridge if I can keep everything wireless by getting the Xbox wireless adapter.
Message was edited by: Prof. Rockwell

Internet connection and firewall

I have seen several other posts on what appears to be my problem, but I have not seen an answer, so my apologies for trying again. I had service done on my MBP recently and they altered the network settings at the Apple store. When I got home, I set them back to where they had been, but I have had a recurring problem ever since - if I have shut down or been disconnected for awhile, my computer refuses to connect to the internet.
I normally keep the firewall set to "Set access for specific services...". To make an internet connection, I have to go to the firewall and select "All all incoming connections". Once the connection has been made, I can change my firewall back to its normal settings with no issues. I no nothing of the inner workings of the Mac OS, but does the initial connection require that some utility program be run with the firewall turned off in order for the connection to be established? If so, could it be added to the firewall's allowed application list to prevent this back and forth with the firewall settings?

I had service done on my MBP recently and they altered the network settings at the Apple store...
If you had services done which you had to pay or are covered by the APP at the Apple store, you should have received a receipt at the time you got your mac back. If you are not happy with the service... look at the bottom of the page, it says how many days you have to make a claim (either 30 or 90 days).
You can take your mac and your receipt back to the Apple store and have them fix your problem for free as long as the problem you have now is derived from the old problem...
As for OS X apps that need internet access, that would be the clock time servers, any dashboard apps...mmm... Do you have MSN or any other programs which may need instant internet access?
(I am guessing here... since it is hard to tell since it depends what you have in your setup...)

Internet Sharing and Download Limits

Hi Everyone
*Current Setup*
I have a home network of 2 Desktop Macs, 2 Laptop Macs, and one desktop PC. Currently we all share the internet through an ADSL modem (with built-in wireless router & 4 ethernet ports) which is always running.
*The Problem*
Every month we go over the download limit set by our ISP. We have increased our plan a number of times, but it's now getting to the point that I no longer want to increase the amount I'm paying.
*What I Want*
Basically, I am hoping to setup one of the following two scenarios:
1. the ability to set download limits on the various computers and, once they are reached, to stop that computer's internet access
2. If (1) above is too difficult (or expensive), then the ability to monitor each computer's usage would probably be enough. That way, once its usage is over the limit I wish it to have, then I could manually disconnect it from the network.
I understand that these setups may involve the purchase of additional software and hardware. I would be most interested in what my learned users have to share.
Thanks greatly,
Joe.

These people have what you're looking for... just can't remember which one at the moment!?
http://www.sustworks.com/site/prodipmxoverview.html

Internet Sharing and Firewall

Similar Messages

Maybe you are looking for