The CSR is must for installing SSL Certificate on Glassfish.  After generating the CSR file, open it in a text editor such as Notepad to check for any spelling mistakes or incorrect details. Once verified, send the CSR to a Certificate Authority (CA) for validation. The time to receive your certificate will vary based on the type of validation chosen. After receiving the certificate, import it along with your private key into the GlassFish Keystore. There are the following steps for installation which are as follows:-  1) Unzipping and extracting the file 2) Uploading the Extracted Files to the Glassfish server 3) Importing Keystore into Glassfish default Keystore 4) Entering passwords 5) Updating the Configuration on your server If you need to understand properly in detail and getting error, Further I am mentioning one article that can be useful for you :-https://certera.com/kb/how-to-install-an-ssl-certificate-on-glassfish/. Hope it helps! ... View more