139883256969032:error:02001002:system library:fopen:No such file or directory:bss_file.c:355:fopen('/etc/pki/CA/index.txt','r')

This error is frequently appeared when we try to sign a certificate using openssl, the procedure to resolve this error is:

Create the index.txt file.
# touch /etc/pki/CA/index.txt

Create a serial file to label the CA and all subsequent certificates.
# echo '1000' > /etc/pki/CA/serial

NB: You have to do this just the first time you set-up the SSL certificate.

Categories: openssl error, SSL error