HomeLab – Namespaces, Limits & Quotas in k3s – Day 5
Goal: Create an apps namespace in k3s, enforce sane defaults with LimitRange and ResourceQuota, and validate behavior via kubectl. All[…]
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HomeLab – Install k3s with Ansible (Token, Role & Playbook, kubectl Verify) – Day 4
Goal: Generate a secure k3s token, deploy a single-master / two-worker k3s cluster with Ansible, and verify the cluster with[…]
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HomeLab – Pre-flight & Firewall (UFW) for k3s – Day 3
Goal: Prepare Linux nodes for k3s by disabling swap, setting required sysctl and kernel modules, and opening firewall ports via[…]
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HomeLab – Cloning Workers and Verifying Ansible Connectivity – Day 2
Goal: Create two worker VMs (k3s-w1, k3s-w2), set static IPs on vmnet1, update the Ansible inventory, and confirm connectivity with ansible -m ping.[…]
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HomeLab – Building a Solid Linux Foundation (Kubuntu 25 + VMware + Ansible) – Day 1
Goal: prepare the host (Kubuntu 25), create a reusable base VM template (Ubuntu Server 24.04), clone a k3s-master VM, and[…]
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GNS3 – Basic Lab – How to Add Subnet for Servers and Add the First Debian Server to This Subnet
In this GNS3 basic lab, you will learn how to add a subnet for servers and add the first Debian[…]
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Debian 11 – Basic server hardening
Basic Debian 11 server installation hardening Today we will customize ssh, network and file permissions on fresh Debian 11 install.[…]
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GNS3 – Basic lab topology with DHCP and DNS servers
Basic lab topology with DHCP pool and DNS server Today we will setup a DNS server on CiscoCSR1000v router and[…]
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GNS3 – Basic lab topology
Basic lab topology with EIGRP In today’s lab we will setup a basic topology in GNS3 using EIGRP, NAT, VLANs[…]
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