I'm sometimes using openssl to generate certificates, mostly for apache but not enough to remember the complete shell command each time. So I paste it here, as a reminder.
openssl req -new > server.cert.csr
openssl rsa -in privkey.pem -out server.cert.key
openssl x509 -in server.cert.csr -out server.cert.crt -req -signkey server.cert.key -days 365
Theses commands generate .pem, .crt, .csr and .key files. Note that apache only require .crt and .key files for SSLCertificateFile, SSLCertificateKeyFile directives.
