Constant Firewall messages

Question

I just did an upgrade to 10.6.2
On checking Console, I see hundreds of messages like this:
23/12/2009 16:51:37 Firewall[109] Allow smbd connecting from 10.0.0.5:49649 to port 139 proto=6
and
23/12/2009 16:55:14 Firewall[109] Stealth Mode connection attempt to UDP 10.0.0.14:64140 from 10.0.0.2:53
Is this something to worry about?
I'm not sure what these mean and if it's a problem? Is someone hacking into my system?

Answer 1

+23/12/2009 16:51:37 Firewall109 Allow smbd connecting from 10.0.0.5:49649 to port 139 proto=6+
This is the samba (windows client) network (lan) software trying to connect to your Mac's netbios
port to determine the machine's identity. Samba is included with SL.
+23/12/2009 16:55:14 Firewall109 Stealth Mode connection attempt to UDP 10.0.0.14:64140 from 10.0.0.2:53+
This is your router (or modem/router combo) DNS (Domain Name Server) Service (on your router)
trying to communicate with your Mac and your SL firewall is blocking it. Don't worry though, when
your Mac needs DNS Services, it will ask for them. Actually it's probably your IP's nosy Web Server
that's trying to connect to your Machine, as all DNS requests normally get channeled from your
IP through your router. In other words, don't worry about it. All that means is your Snowie
firewall is doing its job keeping out some nosy server, most likely belonging to your IP provider.
Kj ♘