A basic configuration.

<IfModule mod_scep.c>
<Location /scep>
  SetHandler scep
#  ScepRACertificate /tmp/ra-cert.pem
#  ScepRAKey /tmp/ra-key.pem
  ScepSubjectRequest O
  ScepSubjectRequest countryName
  ScepSubjectRequest stateOrProvinceName
  ScepSubjectRequest commonName
  ScepSubjectCGI OU UNIQUE_ID
  ScepSubjectSet OU "Test Certificate"
  CASimpleCertificate /etc/pki/certs/ca-cert.pem
  CASimpleKey /etc/pki/certs/ca-key.pem
  CASimpleSerialRandom on
  CASimpleTime on
  CADiskCertificateSignRequestPath /etc/pki/ca/
  CADiskCertificateByTransactionPath /etc/pki/ca/
</Location>
</IfModule>