Common & Popular Ports Number used in OS
The most 50 significant ports are listed here: The following are some of the most common service names, transport protocol names, and port numbers used to differentiate…
What is DNS records? Most Common DNS records?
DNS Record Description A Maps domain names to IPv4 addresses AAAA Maps domain names to IPv6 addresses CNAME Redirects a domain to a different domain PTR Resolves…
Kubernetes CKS: Understanding Kubernetes PKI certificates & Security Best Practices
Kubernetes requires PKI certificates for authentication over TLS. If you install Kubernetes with kubeadm, the certificates that your cluster requires are automatically generated. You can also generate your…
What is Container Runtime Interface (CRI)?
Container Runtime Interface (CRI) Container runtime interface (CRI) is a plugin interface that lets the kubelet—an agent that runs on every node in a Kubernetes cluster—use more…
Docker Support is Removed from Kubernetes 1.23 version
The Kubernetes 1.24 release. The release will deprecate several (beta) APIs in favor of stable versions of the same APIs. The major change coming in the Kubernetes…
Kubernetes 1.22.9 Cluster Setup Master and Worker in Ubuntu 20.04
Sample Code – https://github.com/certifications-tutorials/cks-course-environment/tree/master/cluster-setup/previous
Kubernetes Tutorials: What is Network Policy & Example Code
If you want to control traffic flow at the IP address or port level (OSI layer 3 or 4), then you might consider using Kubernetes NetworkPolicies for…
Kubernetes Assignment for Administrator
Write a Summary post on following Questions – Top 10 k8 API Resources which is being by Kubernetes Admin – Top 10 kubectl commands to troubleshoot Kubernetes…
Install & Configure Prometheus in Kubernetes Cluster
Step 1- Create 2 PV for Prometheus server & Alert Manager Step 2 – Install using Helm Step 3 – How to access?
Kubernetes Clusters Troubleshooting Guide
Source Code – https://github.com/devopsschool-demo-labs-projects/kubernetes-lab-demo/tree/main/Clusters-Troubleshooting Troubleshooting Kubernetes Nodes Troubleshooting Kubernetes Control Plane Troubleshooting Kubernetes Workloads
Logging and Monitoring in kubernetes clusters
Source Code – https://github.com/devopsschool-demo-labs-projects/kubernetes-lab-demo/tree/main/logging-monitoring
Kubernetes Backup and Restore Complete Reference
Kubernetes cluster backup and restore using “etcdctl” tool Kubernetes cluster backup and restore using Velero
Kubernetes Tutorials & Lab: Ingress with NodePort
Sample Code – https://github.com/devopsschool-demo-labs-projects/kubernetes-lab-demo/tree/main/Ingress
Kubernetes Tutorials & Lab: Ingress with Loadbalancer
Sample Code – https://github.com/devopsschool-demo-labs-projects/kubernetes-lab-demo/tree/main/Ingress
Kubernetes Lab: Services & Service Discovery
Sample Code – https://github.com/devopsschool-demo-labs-projects/kubernetes-lab-demo/tree/main/Services-ServiceDiscovery
Kubernetes Lab – Investigating Networking & DNS
Sample Code – https://github.com/devopsschool-demo-labs-projects/kubernetes-lab-demo/tree/main/networking-dns
Terraform Project – Assignment – Exercise – Lab#4: Datasource
How to submit Assignment? Please submit assignment @https://www.debug.school/ and POST url share in the comments of this post. Using Datasource, list out following info List of Images…
Terraform Project – Assignment – Exercise – Lab#1: Variables
How to submit Assignment? Please submit assignment @https://www.debug.school/ and POST url share in the comments of this post. Assignment – 1 Write a terraform script using aws…
How To Create Linux Virtual Machine Using VirtualBox
Step by Step with Screenshot – https://www.devopsschool.com/blog/how-to-install-linux-on-windows-or-virtual-machine/
How DevOps Impact’s IT Business in Real-
Time
IT business is changing at a very fast pace, and that’s why it becomes tough for IT organizations to serve the business if it doesn’t adapt to…