Invalid SSL Key (on cPanel)

[bandinopla]

for some reason i had to run openssl rsa -in domain.key -check and manually copy the RSA Key from the console and paste it on the "Private Key" section of cPanel.

Is there a flag or configuration one can do to generate the key the same way as openssl ... -check returns it?

[r5d]

@bandinopla

You can do:

openssl rsa -in domain.key -out domain.decrypted.key

to write the decrypted domain key to domain.decrypted.key.