Linux Sử dụng OpenSSL tạo Certificate Authority ( CA )

1.Tạo Private key 
# openssl genrsa -des3 -out www.pvhuu.blogspot.com.key 1024 
2.Tạo Certificate Signing Request ( CSR )
# openssl req -new -key www.pvhuu.blogspot.com.key -out www.pvhuu.blogspot.com.csr

3. Tạo a Self-Signed SSL Certificate
Ví dụ: Tạo một a Self-Signed SSL Certificate hợp lệ 1 năm như sau.
# openssl x509 -req -days 365 -in www.pvhuu.blogspot.com.csr -signkey www.pvhuu.blogspot.com.key -out www.pvhuu.blogspot.com.crt