SSL

# yum install openssl

# export MY_DOMAIN=sysadm.ru

# mkdir -p ~/ssl/${MY_DOMAIN}
# cd ~/ssl/${MY_DOMAIN}
# openssl genrsa -des3 -out ${MY_DOMAIN}.key 2048
# openssl req -new -key ${MY_DOMAIN}.key -out ${MY_DOMAIN}.csr
# openssl x509 -req -days 365 -in ${MY_DOMAIN}.csr -signkey ${MY_DOMAIN}.key -out ${MY_DOMAIN}.crt
# cp ${MY_DOMAIN}.key{,.orig}
# openssl rsa -in ${MY_DOMAIN}.key.orig -out ${MY_DOMAIN}.key
# chmod 400 ${MY_DOMAIN}.key

# cp ${MY_DOMAIN}.crt /etc/pki/tls/certs
# cp ${MY_DOMAIN}.{key,csr} /etc/pki/tls/private/

Для почты

# vim /etc/httpd/conf.d/90-roundcube.conf

RewriteEngine On
RewriteCond %{HTTPS} !=on
RewriteRule ^/?webmail/(.*) https://%{SERVER_NAME}/webmail/$1 [R,L]

# service httpd restart