Cisco ASA Virtual Context Mode
A single Cisco ASA or a cluster of two ASAs can be partition into multiple virtual firewalls known as security contexts. Each context has it’s own independent firewall, with its own security policy,...
View ArticleConfiguration re-sync Juniper ISG NSRP cluster
When the ISG cluster devices are correctly configured, they will start synchronizing the configuration. You can check if the configurations is in sync with the following command: Cluster1:fw01(M)->...
View ArticleSetup Juniper ISG NSRP cluster
This post describes how to rebuild a Juniper NSRP Cluster if the first Juniper firewall is already configured for NSRP. Please make sure you have the following prerequisite on both Firewalls. Minimum...
View ArticleAnsible Automation with Cisco ASA Multi-Context Mode
I thought I’d share my experience using Ansible and Cisco ASA firewalls in multi-context mode. Right from the beginning I had a few issues deploying the configuration and the switch between the...
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Getting started with Kubernetes Operators in Golang
In the past few weeks I started to learn Golang and beginners like me can make quick progress once you understand the structure and some basics about the programming language. I felt that from all the...
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OpenShift Hive – Deploy Single Node (All-in-One) OKD Cluster on AWS
The concept of a single-node or All-in-One OpenShift / Kubernetes cluster isn’t something new, years ago when I was working with OpenShift 3 and before that with native Kubernetes, we were using...
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Kubernetes Cluster API – Provision workload clusters on AWS
The past few months I have been following the progress of the Kubernetes Cluster API which is part of the Kubernetes SIG (special interest group) Cluster-Lifecycle because they made good progress and...
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OpenShift Hive v1.1.x – Latest updates & new features
Over a year has gone by since my first article about Getting started with OpenShift Hive and my talk at the RedHat OpenShift Gathering when the first stable OpenShift Hive v1 version got released. In...
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Kubernetes GitOps at Scale with Cluster API and Flux CD
What does GitOps mean and how you run this at scale with Kubernetes? GitOps is basically a framework that takes traditional DevOps practices which where used for application development and apply them...
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