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# Generate Private Key
$ openssl genrsa -out server.key 2048
# Generate CSR
$ openssl req -new -out server.csr -key server.key -config openssl.cnf
# => Fill in info
# Check CSR
$ openssl req -text -noout -in server.csr
# Sign Cert
$ openssl x509 -req -days 3650 -in server.csr -signkey server.key -out server.crt -extensions v3_req -extfile openssl.cnf