x509v3.cnf

# default settings
CERTPATHLEN		= 1
CERTUSAGE		= digitalSignature,keyCertSign,cRLSign
EXTCERTUSAGE		= serverAuth,clientAuth
CERTIP			= 0.0.0.0
CERTFQDN		= nohost.nodomain

# This section should be referenced when building an x509v3 CA
# Certificate.
# The default path length and the key usage can be overridden
# modified by setting the CERTPATHLEN and CERTUSAGE environment 
# variables.
[x509v3_CA]
basicConstraints=critical,CA:true,pathlen:$ENV::CERTPATHLEN
keyUsage=$ENV::CERTUSAGE

# This section should be referenced to add an IP Address
# as an alternate subject name, needed by isakmpd
# The address must be provided in the CERTIP environment variable
[x509v3_IPAddr]
subjectAltName=IP:$ENV::CERTIP
extendedKeyUsage=$ENV::EXTCERTUSAGE

# This section should be referenced to add a FQDN hostname
# as an alternate subject name, needed by isakmpd
# The address must be provided in the CERTFQDN environment variable
[x509v3_FQDN]
subjectAltName=DNS:$ENV::CERTFQDN
extendedKeyUsage=$ENV::EXTCERTUSAGE