Note that the —rename option of certutil doesn’t seem to work for this format of files.
Extract the cert, delete and and add it back with the new nickname. e.g.
certutil -L -d /etc/httpd/alias -n ‘CN=…...' -a -o ~/krb1.cert
certutil -D -d /etc/httpd/alias -n ‘CN=…..'
certutil -A -d /etc/httpd/alias -n "Server-Cert" -t u,u,u -i ~/krb1.cert