TXT_DB error number 2 failed to update database
As I m completly unaware of the openssl use, I only write here some observations I made : If after the command : openssl ca -out cert.pem -infiles req.pem you got the following error message : failed to update database TXT_DB error number 2 This is probably because you have generated your own signing certificate with the same Common Name (CN) information that the CA certificate that you've generated before. Simply input a different Common Name each time you are asked should do the trick. Credit : 1