I have followed tutorial on https://www.howtoforge.com/tutorial/securing-ispconfig-3-with-a-free-lets-encrypt-ssl-certificate/ cd /usr/local/ispconfig/interface/ssl/ mv ispserver.crt ispserver.crt-$(date +"%y%m%d%H%M%S").bak mv ispserver.key ispserver.key-$(date +"%y%m%d%H%M%S").bak mv ispserver.pem ispserver.pem-$(date +"%y%m%d%H%M%S").bak ln -s /etc/letsencrypt/live/$(hostname -f)/fullchain.pem ispserver.crt ln -s /etc/letsencrypt/live/$(hostname -f)/privkey.pem ispserver.key cat ispserver.{key,crt} > ispserver.pem on last command cat xxxx, -> i got error message not file found, but i have checked both files exist ( symbolic link file ) Please guide me how to solve it
