Real infrastructure. Production scenarios. Break/Fix troubleshooting.
Production-style Linux engineering scenarios.
Build an AI-assisted Linux infrastructure monitoring solution using Python for server health collection and Ollama with Qwen for analysis and infrastructure insights.
Skills: Linux, Python, Shell, health monitoring, automation, Ollama, Qwen, AI/LLM integration.
Build a PXE-based Linux deployment environment and troubleshoot automated provisioning failures.
Skills: PXE, DHCP, TFTP, HTTP, Kickstart, networking.
Investigate systems that fail to boot and recover them using GRUB, rescue environments and Linux recovery techniques.
Skills: GRUB2, boot process, rescue mode, initramfs, systemd.
Simulate and investigate kernel-level failures and develop a structured post-crash recovery approach.
Skills: Kernel, GRUB, logs, initramfs, crash investigation.
Troubleshoot a server entering emergency mode after a bad filesystem configuration.
Skills: fstab, mount, UUID, systemd, emergency mode.
Investigate filesystem corruption, unavailable mount points and controlled recovery procedures.
Skills: XFS, xfs_repair, mount, diagnostics.
Determine why a filesystem reaches 100% utilization, including logs and deleted-open files.
Skills: df, du, lsof, log investigation, filesystem analysis.
Investigate a filesystem that has free capacity but cannot create new files because inodes are exhausted.
Skills: inodes, df -i, find, file-count analysis.
Investigate memory exhaustion and unexpected process termination by the Linux kernel.
Skills: OOM Killer, memory analysis, dmesg, journalctl, cgroups.
Investigate processes stuck in uninterruptible sleep during storage or NFS failures.
Skills: NFS, D-state, ps, lsof, mount, storage troubleshooting.
Troubleshoot complex access problems involving ownership, permissions and ACLs.
Skills: chmod, chown, ACL, getfacl, setfacl.
Investigate connectivity, DNS, routing and application network problems from the Linux server side.
Skills: ip, ss, ping, traceroute, DNS, routing, NetworkManager, tcpdump.
Build and troubleshoot a multi-tier Linux environment with load balancing, application servers and backend services.
Skills: Nginx, HAProxy, Linux networking, service management.
Investigate high I/O wait and determine whether the bottleneck originates from processes, storage or filesystems.
Skills: iostat, iotop, sar, vmstat, disk performance.
Investigate zombie processes and the parent-child relationship behind them.
Skills: ps, process states, parent-child relationships, signals.
Production DevOps Projects.
Build a production-style AWS network with CIDR planning, public/private subnets, routing, IGW and NAT.
Skills: AWS VPC, CIDR, AZs, route tables, IGW, NAT.
Build secure EC2 access using IAM roles and Systems Manager, with bastion concepts where appropriate.
Skills: EC2, IAM, roles, SSM, security groups.
Deploy an application with ALB, target groups, health checks, RDS PostgreSQL and Route53/SSL concepts.
Skills: ALB, EC2, RDS, Route53, application networking.
Containerize a multi-component application with Docker Compose and troubleshoot ports, networking, environment variables and volumes.
Skills: Dockerfile, images, containers, Compose, networking, volumes.
Automate Linux configuration and patching with pre/post checks, handlers and controlled rolling execution.
Skills: Ansible inventory, playbooks, roles, variables, templates, serial execution.
Create a GitHub Actions pipeline that tests, lints, performs security checks and builds/pushes a Docker image.
Skills: GitHub Actions, workflows, jobs, secrets, artifacts, Docker.
Provision VPC, subnets, security groups and EC2 while learning state, dependencies, modules and drift.
Skills: Terraform HCL, plan/apply, state, modules, remote backend concepts.
Deploy and troubleshoot a 3-tier application using Kubernetes workloads, services, configuration, storage and probes.
Skills: Pods, Deployments, Services, ConfigMaps, Secrets, PV/PVC, Ingress.
Package the application with Helm and deploy it through Argo CD using Git as the desired state.
Skills: Helm charts, values, templates, Argo CD, sync, drift and rollback.
Deploy the application to Amazon EKS and connect cloud networking, load balancing and workload operations.
Skills: EKS, node groups, VPC CNI concept, CoreDNS, EBS CSI, ECR.
Build an observability layer and investigate application performance through metrics, dashboards and alerts.
Skills: Prometheus, targets, PromQL basics, Grafana, Alertmanager.
Add container image security scanning to the CI process and handle releases blocked by security findings.
Skills: Trivy, image scanning, CI security gates, secrets and least privilege.
Connect GitHub, GitHub Actions, Docker, ECR, Terraform, AWS/EKS, Helm, Argo CD and Prometheus/Grafana into one operational platform.
Operational focus: broken deployments, application/performance incidents, infrastructure/GitOps failures, RCA, runbooks and prevention actions.
Join the 8-week Linux + DevOps Engineer Training and build the connected projects with production-style break/fix scenarios.