multifactor authentication for distributed VPN mesh - part 1, server and client configuration, cloud OTP

Building a distributed VPN mesh (multiple VPN servers, authenticating same accounts, having same routing)? Want to give a security boost to authentication? Thinking about multifactor? Here's one of the many architectures that work.


Monitoring for the cloud, part 2 - architecture

There's a cornucopia of tools for monitoring cloud infrastructure: Sensu, Graphite, Logstash, Riemann, etc. The very, very good news is that most of these tools speak each other's protocols. This opens up a lot of possibilities: from small setups where some components (e.g. the message queue) are reused, serving many purposes at once, to complex architectures where the various functions are decoupled, there are large amounts of redundancy at various levels, etc.


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