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Comparsion of Ansible and Puppet exams by Red Hat

April 21, 2017 by Paweł Biernacki

I had an opportunity to take both exams related to those two most popular automation and configuration management frameworks. Here are some thoughts about the Red Hat’s 405 (Puppet) and 407 (Ansible) exams.

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Granting privileges using MAC Framework

April 17, 2017 by Paweł Biernacki

FreeBSD’s kernel provides quite sophisticated privilege model that extends the traditional UNIX user-and-group one. Here I’ll show how to leverage it to grant access to specific privileges to group of non-root users.

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Intrusion detection and prevention with AWS Lambda and DynamoDB streams

April 5, 2017 by Paulina Budzoń

Intrusion detection system (IDS) and intrusion prevention system (IPS) tend to be expensive and complicated. In AWS, you can go for much simpler solution - WAF. But that requires you to use Application Load Balancer or CloudFront. But even with WAF, you have to manage a list IP addresses of attackers that should be blocked. Or, if you only ever need to block single IPs for short periods of time, NACLs may be a much easier option! Here’s a walkthrough on how you can implement a terribly simple (yet very powerful) intrusion detection and prevention in AWS with Lambda and DynamoDB Streams for a web application.

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Update on the deadline for AWS Specialty Beta exams

April 3, 2017 by Paulina Budzoń

If you’re still waiting for the results of the AWS Specialty Beta exams (Security, Big Data or Networking), you are not alone. The results and final versions of the exams were supposed to be released at the end of March. But March came and went, and we only got one small update from AWS.

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AWS Certified Solutions Architect vs DevOps exams - my subjective comparison

March 27, 2017 by Paulina Budzoń

Last week, I finally had the time to schedule my AWS Certified Solutions Architect - Professional exam, which I passed on Saturday. It’s been a while since I did the other AWS Professional level (DevOps) certificate, but I thought I’d share my take on how the exams compare.

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