stunnel
You need some additional configuration before stunnel will be functional:
Adjust the configuration file:
# cp /etc/stunnel/stunnel.conf-sample /etc/stunnel/stunnel.conf # vi /etc/stunnel/stunnel.conf
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Note
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If something goes wrong, try setting sslVersion to all. |
Generate your certificate:
# openssl req -new -x509 -days 365 -nodes -config /etc/stunnel/stunnel.cnf -out \ /etc/stunnel/mail.pem -keyout /etc/stunnel/mail.pem
Hide the certificate from users:
# chmod 600 /etc/stunnel/mail.pem
Now you can enable and start the service:
# systemctl enable stunnel.service # systemctl start stunnel.service