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Kudos0

Firewall settings new NIS 5

I have a couple questions on setting up my firewall.  I just upgraded to Lion and NIS 5.

I have turned off all sharing services on my Mac but when i view current connections on my Norton Firewall i see under Servers & Ports that Windows File Sharing (137 & 138) both appear to be in listening mode.  I have also blocked both incoming and outgoing connections to Windows File Sharing.  Why would these still appear in the listening mode?  I've also notice Launchd in the Applications that is connected to the internet.  Launchd wasn't connected when i was using Snow Leopord.  Are these two things anything to worry about or is there a way to completely turn off?

Also in looking at my advanced firewall settings there are 2 items which I do not fully understand so I'm not sure what to check.

Enable Auto Setup

&

Always allow broadcast & multicast traffic (and also the Protect UDP & ICMP services)

Should these settings be enabled?

Thank you for your help.  Hopefully these aren't ridiculously dumb questions.

Keith

Replies

Kudos0

Re: Firewall settings new NIS 5

I have a couple questions on setting up my firewall.  I just upgraded to Lion and NIS 5.

I have turned off all sharing services on my Mac but when i view current connections on my Norton Firewall i see under Servers & Ports that Windows File Sharing (137 & 138) both appear to be in listening mode.  I have also blocked both incoming and outgoing connections to Windows File Sharing.  Why would these still appear in the listening mode?  I've also notice Launchd in the Applications that is connected to the internet.  Launchd wasn't connected when i was using Snow Leopord.  Are these two things anything to worry about or is there a way to completely turn off?

Also in looking at my advanced firewall settings there are 2 items which I do not fully understand so I'm not sure what to check.

Enable Auto Setup

&

Always allow broadcast & multicast traffic (and also the Protect UDP & ICMP services)

Should these settings be enabled?

Thank you for your help.  Hopefully these aren't ridiculously dumb questions.

Keith

Kudos0

Re: Firewall settings new NIS 5

Listening mode means that some application is listening for those conncetions. Norton Firewall does not prevent applications from making listening connections unless you use the Application Blocking feature.

However, bceause you have seutp the firewall to block connections to those services, nobody will access your Mac using Windows File Sharing. However, that won't stop Mac OS X from setting up a connection for other computers to connect on; they just won't be able to successfully connect. 

Norton Firewall doesn't prevent the listen by default (unless you use Application Blocking) because you might want to allow only certain connections. This is very common; you could setup the firewall to allow only people on your local network to use Windows File Sharing but block others.

The setting Enable AutoSetup should be enabled if you change which services are running on your Mac frequently. It helps you setup Norton Firewall when you change which services are running on your Mac.

The Allow broadcast option should always be enabled usually, unless you are very certain you know what you're doing.

Ryan

Ryan McGann Technical Director Norton Business Unit, Symantec

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