I am reading the material to build my email server. https://www.digitalocean.com/community/tutorials/how-to-set-up-a-postfix-e-mail-server-with-dovecot
Here is a something confused me in the material: Setting up SSL certificate For SSL, you need a certificate and a private key. In this tutorial, we’re going to assume that the certificate is saved in /etc/ssl/certs/mailcert.pem and the key is saved in /etc/ssl/private/mail.key. Make sure the key is only readable by the root user!
the certificate problem :
we’re going to assume the certificate is saved in /etc/ssl/certs/mailcert.pem
In my server
ls /etc/ssl/certs/mailcert.pem
ls: cannot access /etc/ssl/certs/mailcert.pem: No such file or directory
My problem is :
How to create the mailcert.pem myself?
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I am foolish,haha. openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout /etc/ssl/private/mail.key -out /etc/ssl/certs/mailcert.pem The command create mail.key and mailcert.perm at the same time.
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