Generate TLS certificate

Log in as the root user on the station that hosts the keytool utility.

Open a console window.

Generate a keystore file that contains the certificate.

Note: A file path in the keystore_file value, or in the name of any file generated in a subsequent step, must not include /opt/nsp/os. If you do not include a path, the file is generated in the current working directory, which must not be below /opt/nsp/os.

Note: You must enclose a password that contains a special character in single quotation marks; for example:

-keypass 'Mypa$$word' -storepass 'Mypa$$word'

# keytool -genkeypair -alias alias -keyalg RSA -keypass password -storepass password -keystore keystore_file -validity days -dname "CN=server_name, OU=org_unit, O=org_name, L=locality, S=state, C=country" -ext bc=ca:true -ext san=DNS:DNS_name↵

where

alias is a case-insensitive alias that is required for subsequent keytool operations

password is the password for the key and keystore

Note: The keypass and storepass passwords must be identical.

keystore_file is the name of the keystore file to generate

days is the number of days for which the certificate is to be valid

server_name is the common name or hostname of the server

org_unit is a department or division name

org_name is a company name

locality is a city name

state is a state or region name

country is a country code, for example, US

DNS_name is the DNS-resolvable server hostname or FQDN

Note: A custom certificate is unique to an NSP cluster; in a DR deployment, each cluster requires a unique, cluster-specific SAN entry.

Note: Multiple server SAN entries are separated using semicolons; for example:

san=DNS:DNS_name_1;DNS:DNS_name_2

Note: In an NSP deployment that includes NFM-P, uses separate client and internal interfaces, and does not use mTLS, the SAN field must also include the internal advertised address of the NSP cluster. The address to include is one of the following in the platform—ingressApplications—ingressController section of the config.yml file on the local NSP deployer host:

In the internalAddresses subsection, if configured, otherwise, in the clientAddresses subsection:

• if configured, the advertised value

• otherwise, the virtualIp value

If mTLS is used between the NSP and NFM-P in such a deployment, you do not need to include the internal NSP address in the SAN field.

Record the alias and password values that you specify.

Export certificate

Enter the following to export the certificate from the keystore to a certificate file:

Note: You must enclose a password that contains a special character in single quotation marks; for example:

-storepass 'Mypa$$word'

# keytool -export -alias alias -keystore keystore_file -storepass password -file certificate_file ↵

where

alias is the alias specified during keystore creation

keystore_file is the source keystore file, for example, /opt/samserver.keystore

password is the keystore password

certificate_file is the name of the certificate file to generate

Generate and submit CSR

Generate a certificate signing request, or CSR.

1. Enter the following:

   # path/keytool -certreq -alias alias -keystore keystore_file -file CSR_file -storetype JKS -ext san=DNS:DNS_name -ext ExtendedKeyUsage=serverAuth,clientAuth ↵

   where

   alias is the keystore alias

   keystore_file is the keystore file generated in Step 3

   CSR_file is the name of the CSR file to generate

   DNS_name is the DNS-resolvable server hostname or FQDN

   Note: Multiple server SAN entries are separated using semicolons; for example,

   san=DNS:DNS_name_1;DNS:DNS_name_2

   The following prompt is displayed:

   Enter keystore password:

2. Enter the keystore password. The following prompt is displayed:

   Enter key password for alias

3. Enter the key password. The utility generates a CSR file.

Send the CSR file to a CA for authentication. The CA returns the following certificate files that contain a trusted root certificate in a hierarchical certificate chain.

• server.pem—public server key

• CA.pem—public CA key

Generate NSP cluster TLS artifacts

Enter the following to convert the keystore to PKCS12 format:

# keytool -importkeystore -noprompt -srckeystore keystore_file -destkeystore file_name.pkcs12 -deststoretype PKCS12 -deststorepass storepass -destkeypass keypass -srcstorepass storepass -srckeypass keypass -alias alias ↵

where

alias is the keystore alias

keystore_file is the keystore file generated in Step 3

file_name is the name of the new keystore file in PKCS12 format

keypass is the keystore password

storepass is the truststore password

Enter the following to extract the private key from the PKCS12 keystore to a file:

# openssl pkcs12 -in file_name.pkcs12 -passin pass:keypass -nodes -nocerts -descert -out private_key.key ↵

where

file_name is the name of the keystore file in PKCS12 format

private_key is the name to assign to the private key file

If you are using an intermediate CA, enter the following to generate the chained server .pem file:

# cat server.pem ca-chained.pem > server-chained.pem ↵

Note: The certificate order is important; the server certificate must be first in the chain of certificates in the file in order for the NSP installer to read the certificates correctly.

If the NSP deployment does not include the NFM-P, go to Step 15.

Generate NFM-P TLS artifacts

Enter the following to import the certificate to a truststore file.

Note: If the certificate is signed by a CA, you must import the entire CA chain of certificates to the truststore file; see the CA documentation for information about importing trusted certificates.

Note: You must enclose a password that contains a special character in single quotation marks; for example:

-storepass 'Mypa$$word'

# path/keytool -import -trustcacerts -alias alias -file certificate_file -keystore truststore_file -storepass password ↵

where

alias is the keystore alias

certificate_file is the self-signed or CA certificate file

truststore_file is the truststore file that is to hold the certificate

password is the truststore password

Enter the following to import the certificate to a keystore file

Note: You must import the entire CA chain of certificates to the keystore file; see the CA documentation for information about importing trusted certificates.

Note: You must enclose a password that contains a special character in single quotation marks; for example:

-storepass 'Mypa$$word'

# path/keytool -import -trustcacerts -alias alias -file certificate_file -keystore keystore_file -storepass password ↵

where

alias is the keystore alias

certificate_file is the CA certificate file

keystore_file is the keystore file that is to hold the certificate

password is the keystore password

As required, perform the required NFM-P TLS configuration described in “NSP component TLS configuration” in the NSP System Administrator Guide.

Close the console window.

End of steps