Disappearing “Join Kerberos” button in Server Admin

When selecting the “Connected to Directory System” option in setting up OD and following the instructions, there might be a chance that the “Join Kerberos” button disappears when you need it most. The way to get that back would be to delete the /etc/krb5.keytab file and restart Server Admin.

Do Note: That when using “Connected to Directory System” option, you will only be able to access the services that the xserve provides. There would be no ability to provide MCX and Augmented Records of any kind.

Checking for fat binary components

  • file – will provide the file type information. in the case of a binary, it will give the components that makes up the binary
  • readlink – will provide the libraries it is linked to
$ readlink /usr/bin/ruby
../../System/Library/Frameworks/Ruby.framework/Versions/Current/usr/bin/ruby
$ file /usr/lib/libruby.dylib
/usr/lib/libruby.dylib: Mach-O universal binary with 4 architectures
/usr/lib/libruby.dylib (for architecture ppc7400):   Mach-O dynamically linked shared library ppc
/usr/lib/libruby.dylib (for architecture ppc64):   Mach-O 64-bit dynamically linked shared library ppc64
/usr/lib/libruby.dylib (for architecture i386):   Mach-O dynamically linked shared library i386
/usr/lib/libruby.dylib (for architecture x86_64):   Mach-O 64-bit dynamically linked shared library x86_64