When I run the openssl command
openssl x509 -noout -text -in certname
on different certs, on some I get a serial number which looks like this.
Serial Number: 256 (0x100)
On others, I get one which looks like this
Serial Number: 41:d7:4b:97:ae:4f:3e:d2:5b:85:06:99:51:a7:b0:62
The certificates I create using openssl command line always look like the first one. What do I need to do to create a cert using openssl command line where the serial number looks like the second?