/usr/share/doc/freeradius/examples/certs/xpextensions is in freeradius 3.0.16+dfsg-1ubuntu3.
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# File containing the OIDs required for Windows.
#
# http://support.microsoft.com/kb/814394/en-us
#
[ xpclient_ext]
extendedKeyUsage = 1.3.6.1.5.5.7.3.2
crlDistributionPoints = URI:http://www.example.com/example_ca.crl
[ xpserver_ext]
extendedKeyUsage = 1.3.6.1.5.5.7.3.1
crlDistributionPoints = URI:http://www.example.com/example_ca.crl
#
# Add this to the PKCS#7 keybag attributes holding the client's private key
# for machine authentication.
#
# the presence of this OID tells Windows XP that the cert is intended
# for use by the computer itself, and not by an end-user.
#
# The other solution is to use Microsoft's web certificate server
# to generate these certs.
#
# 1.3.6.1.4.1.311.17.2
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