How to create a (CSR) with multiple Subject Alternative Name (SAN) entries in PASE OpenSSL for 3rd party or Internet CA.

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Additional information about X.509 V3 extension parameters can be found: https://www.openssl.org/docs/man1.1.1/man5/x509v3_config.html

Web searches on 'openssl san csr' will provide similar technotes.
IBM Technology Services consulting team can provide custom directives beyond this technote.

Additional information and instructions can be found here:

https://www.ibm.com/docs/en/i/7.4?topic=device-portable-utilities-i

https://www.openssl.org/news/openssl-1.1.1-notes.html

https://www.ietf.org/rfc/rfc5280.txt

Go to the cmd field. i35, enter, move curser to field under first *. Paste the below sample text.(you may have to paste in 3 steps after a pgdn) Change req_distinguished_name and sans values to match your geography and dns.


    #The sample configuration file to generate the CSR for a server certificate.
#Based off IBMi /QOpenSys/QIBM/UserData/SC1/OpenSSL/openssl.cnf
#Modify the entries to match your domain & cfgtcp option 12 values.
[ req ]
prompt                 = no
days                   = 365
distinguished_name     = req_distinguished_name
req_extensions         = v3_req
[ req_distinguished_name ]
countryName            = AB
stateOrProvinceName    = CD
localityName           = EFG_HIJ
organizationName       = MyOrg
organizationalUnitName = MyOrgUnit
commonName             = mycommname.com
emailAddress           = emailaddress@myemail.com
[ v3_req ]
basicConstraints       = CA:false
extendedKeyUsage       = serverAuth
subjectAltName         = @sans	
[ sans ]
DNS.0 = localhost.mydomain.com
DNS.1 = SystemA.mydomain.com
DNS.2 = SystemA
DNS.3 = TestA
DNS.4 = 172.1.2.3
email.1 = myemail@email.com

Note: To view subject alternative name in the CSR.


     openssl req -text -noout -verify -in req.csr | grep 'DNS'

View the CSR for all content.


     openssl req -text -noout -verify -in req.csr

Step 4. You must send your .csr file to the Issuer (Certificate Authority). Upon receipt, you will be sent a server/client certificate file (.crt).
Most certificate vendor sites also have a 'CSR Decoder' application, that can review your CSR data before the server certificate is submitted.
[{"Type":"MASTER","Line of Business":{"code":"LOB57","label":"Power"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SWG60","label":"IBM i"},"ARM Category":[{"code":"a8m0z0000000CImAAM","label":"OpenSSL OpenSSH"}],"ARM Case Number":"","Platform":[{"code":"PF012","label":"IBM i"}],"Version":"All Versions"}]