Hello. My SSL cert is about to expire. So I am in the middle of trying to renew it. Up to this point I have done the following.

I generated a new CSR (as follows):
openssl genrsa -out vsftpd.key.new 4096

openssl req -new -key vsftpd.key.new -out vsftpd.csr

So after doing that I worked with the cert provider and received the new certificate. My question is how do I install this new certificate so that VSFTPD will recognize it. I attempted to just overwrite the current crt file with the new one and restart vsftpd but that did not work. When I log into vsftpd using coreftp it still recognizes the old cert. Are there some certain commands I need to run?