Source

This long post contains a recipe for building a reasonably secure Ubuntu 16.04 mail server in Amazon Web Services, using Postfix, Dovecot, and MySQL, with anti-spam packages in the form of amavisd-new, Clam AntiVirus, SpamAssassin, and Postgrey. Local users [are virtual][1] rather than being system users. Administration of users and domains is achieved through the Postfix Admin web interface. Webmail is provided by Roundcube.

This is an updated version of earlier [Ubuntu 12.04][2] and [Ubuntu 14.04][3] mailserver recipes. A number of people graciously helped to fix bugs and make improvements in the original, so should you find a blocking issue here please do let me know.

Introduction

• Scaling k8s daemonset down to zero

kubectl -n kube-system patch daemonset myDaemonset -p '{"spec": {"template": {"spec": {"nodeSelector": {"non-existing": "true"}}}}}'

• Scaling up k8s daemonset

kubectl -n kube-system patch daemonset myDaemonset --type json -p='[{"op": "remove", "path": "/spec/template/spec/nodeSelector/non-existing"}]'

Metadata in PDF files can be stored in at least two places:

• the Info Dictionary, a limited set of key/value pairs
• XMP packets, which contain RDF statements expressed as XML

• http://www.sqlteaching.com/
• https://www.codecademy.com/learn/learn-sql

• MySQL-CLI
• Analyzing Business Metrics
• SQL joins infografic

With Audio and Screen Sharing Enabled

Add the i386 architecture to the list of dpkg architectures :

sudo dpkg --add-architecture i386