[SOLVED]How do I generate a certificate request with OpenSSL

openssl req \
  -new -newkey rsa:1024 -nodes \
  -keyout mykey.pem -out myreq.pem

If you’ve already got a key and would like to use it for generating the request, the syntax is a bit simpler.

openssl req -new -key mykey.pem -out myreq.pem

OpenSSL Command-Line HOWTO.