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Using nmap to brute-force SSH
2 min read
If we have a bunch of Raspberries on our network and we want to make sure we are not using the default password on any of them, we can using nmap fo trying to brute-force into them
15/09/2021
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Kubernetes: List all objects using get-all plugin
2 min read
If we need to take a look at the resources of a Kubernetes cluster, by using kubectl get all we won't be able to see all the resources. Most notably, it won't list Ingress objects. You can take a look at this issue for kubectl for the details but we won't be able to get all the resources using this command, we'll have to install the get-all krew plugin
14/09/2021
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Kubernetes: Remove taint from node
2 min read
With a taint on a node we can repel Pods as we saw on the post regarding taints and tolerations. So, if we want to taint a node we use kubectl taint as follows:
$ kubectl taint nodes minikube application=example:NoSchedule node/minikube taintedHow do we untaint a node?
13/09/2021
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Terraform: Convert launch configuration to launch template
2 min read
Launch templates were introducted in late 2017 as a replacement for launch configurations: They are very similar, although launch templates provide much deeper and wider options to configure the instances that are going to be launched (by using an Auto Scaling Group)
27/08/2021
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How to configure an application to use SecurityGroups for Pods
4 min read
To be able to configure SecurityGroups we will have:
- Install SecurityGroups for Pods on the EKS cluster
- Configure the application to be able to actually use SecurityGroup for a Pods (this post)
This is what needs to be done considering that we are going to use an ALB to direct traffic to the application.
26/08/2021
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