Posts Tagged ‘Security’

OS X not saving passwords?

// April 8th, 2009 // 2 Comments » // RC Tips, Software

About a month ago I noticed that passwords weren’t being saved in apps in OS X like Safari, Omniweb, etc. I didn’t bother trying to figure out the problem, until today when I would go to a site in Safari and it would ask to save the password. I said yes everytime, but it still didn’t save it. Finally I tracked down this blog post, OS X Keychain Not Saving Passwords…:

I struggled with this one for about a month before I finally dug into what was wrong and how to fix it. It all started when I reinstalled because I couldn’t get BootCamp installed because of volume fragmentation. Since then, my applications, specifically Mail.app and Adium, weren’t remembering passwords even if I checked the little “remember” box.

Basically, for some reason, the keychain file at ~/Library/Keychains/login.keychain was now owned by root instead of by me. To check and fix from the commandline ($ is the command prompt):
$ ls -l ~/Library/Keychains/login.keychain
-rw-r--r-- 1 ryan admin 781380 Apr 8 11:17 (*deleted...*)

My username is ryan. If it says anything else, use the following to change the ownership:
$ sudo chown ryan ~/Library/Keychains/login.keychain

It will ask for the administrator password, and then change the ownership of the file. I don’t think repair permissions in Disk Utility would fix this problem.

Beware of that Firewire port!

// March 6th, 2008 // No Comments » // Security

There is a new technique that allows an attacker to unlock a Windows machine or login without a password. This vulnerability also affects OS X. Right now the hack currently requires a Linux laptop, but it could conceivably make its way to modified iPods.

To protect yourself you’ll need to disable Firewire in your PC BIOS, or on the Mac you will need to set the Open Firmware password.

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