The title kind of says it all… I was in the process of bringing up a rather extensive set of Mac OS X Server machines when ShellShocked hit the world. As soon as I saw the news, I hastily began configuring the PF firewall. Probably too hastily, as I managed to break several of the services I was configuring.
Now one of the Mac OS X machines that was directly exposed to the Internet is behaving very strangely. I can no longer log into the machine either through Remote Desktop or the normal login window. (I get the shaking dialog box, as if I had entered the wrong password.) Yet I can still login through SSH just fine.
I know my way around OS X pretty well, and I don't see any unusual looking processes running. So, unless there's some kind of root kit for Mac OS X Mavericks in the world, or my Mac Mini server just chose this moment to manifest some kind of hardware problem, it seems like bringing down the firewall should get me back into the machine.
Is it safe?