sudo mkdir -p /choose/postal/app sudo wget sudo tar xvf most current.tgz -C /decide/postal/application sudo chown -R postal:postal /choose/postal sudo ln -s /opt/postal/application/bin/postal /usr/bin/postal The CloudFlare Origin CA is at this time not trusted by browsers, so these certificates should not be applied on web pages that aren't guiding CloudFlare. https://vmwaremigration91121.blogproducer.com/32796002/new-step-by-step-map-for-ispconfig-3-migration