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Leopard firewall and client 6.2.2xx

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We just upgraded three desktops to brand new Mac minis running Mac OS X 10.5.5. On two of the three systems, everything works fine. On the third, we are unable to communicate with the client (v6.2.234) from the server (v7.6.111). When I examine the firewall log on the desktop in question, it is denying access from the Retrospect server, despite the fact that there's an allow rule for retroclient displayed in the Firewall section of the Security pref. pane. I have also confirmed there are no references to pitond, and that the startup item for retroclient in fact references ".../retroclient &". I tried installing client v6.2.229, after uninstalling 6.2.234 with its installer, but we saw no difference in behavior. If we disable the firewall, there's no connectivity problem, but institutional policy requires us to run with the firewall enabled. Any ideas?




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Hi Mike,


First of all, it's obvious that you've done your homework on this; readers thank you for that. Boy, Apple sure did screw the pooch with Leopard's application based firewall; I sure do miss ports!


That being said, Retrospect is behaving correctly, as the log shows it's the firewall that's denying connectivity. So the question becomes, what's different between the three that work and the one that does not? Are firewall settings identical across all these machines? How about network infrastructure; is the problem machine on a different router/switch then the others? Retrospect uses UDP packets to communicate; is there any possibility that those are being blocked behind the wall?

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