How to renew the SSL certificate for dovecot on CentOS

Till — Wed, 23 Dec 2009 17:00:08 +0000

Make a backup of the old key and certificate file

mv /etc/ssl/certs/dovecot.pem /etc/ssl/certs/dovecot.pem.old
mv /etc/ssl/private/dovecot.key /etc/ssl/private/dovecot.key.old

Create the new SSL certificate

openssl genrsa -out /etc/ssl/private/dovecot.key 1024
openssl req -new -x509 -key /etc/ssl/private/dovecot.key -out /etc/ssl/certs/dovecot.pem -days 730

Restart Dovecot:

/etc/init.d/dovecot restart

How to renew SSL certificates for courier pop3 and imap server on Debian or Ubuntu?

Till — Tue, 28 Jul 2009 17:35:11 +0000

This articles describes the renewal of SSL certificates for courier pop3 and imap server. This is nescessary e.g. when the certificates are expired or contain the wrong hostname.

First delete the exsiting certificates:

rm -f /etc/courier/imapd.pem
rm -f /etc/courier/pop3d.pem

Then edit the template that contains the details for the ecrtificates so that the hostname in the certificate matches the hsotanme of your server and that the email address matches your postmaster email address:

vi /etc/courier/imapd.cnf
vi /etc/courier/pop3d.cnf

and create the new certificates:

mkimapdcert
mkpop3dcert

Courier pop3 and imap have to be restarted so they pick up the new ecrtificates:

/etc/init.d/courier-imap-ssl restart
/etc/init.d/courier-pop-ssl restart

FAQforge » pop3

How to renew the SSL certificate for dovecot on CentOS

How to renew SSL certificates for courier pop3 and imap server on Debian or Ubuntu?