Securely running Nextcloud with Docker-Compose

I have been tasked with the installation of a docker-instance inside our computing-center. To make future upgrades and general handling a bit easier (and for personal education purposes) I want to create a docker-compose nextcloud-installation. As this is business-critical, I don’t want to simply follow any found online tutorial because of security reasons. I stumbled…

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permit_mynetworks overrides check_sender_access?

I am configuring a postfix relay hosted on a cloud provider. I would like to allow relay access only to public IPs of my company and to a precise list of senders. So here are my main.cf configurations: mynetworks = 127.0.0.0/8 1.2.3.4/23 4.5.6.7/32 7.8.9.1/24 smtpd_recipient_restrictions = permit_mynetworks, check_sender_access hash:/etc/postfix/allowed_senders, reject_unauth_destination allowed_senders is like this: [email protected]

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