Posts Tagged ‘pop3’
How to renew the SSL certificate for dovecot on CentOS
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?
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