Mac OS X 10.3 deployments of the Shibboleth SP must be built from source, but binaries are available for 10.4's default distribution. Mac OS X 10.3 and 10.4 both come pre-packaged with various versions of Apache 1.3.x. The default Apache and OpenSSL bundled with Mac OS X is capable of running Shibboleth, as is an OS X installation of Apache 2.0.x.
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