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Portfolio / 2025

KRITAN DAHAL

Network / Infrastructure Engineer
Building toward DevOps & systems engineering.

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02 About / Identity

A quiet obsession with what's underneath.

I care about what happens underneath the interface — how packets move, how systems communicate, how infrastructure fails, and how to make it more reliable.

My work lives between cables and code — routing protocols, kernel parameters, container runtimes. Now deepening the DevOps practice: automation, observability, and systems that don't surprise you at 3 AM.

CCNA CCNP (in progress) NOC Engineering Linux Docker DevOps
Kritan Dahal
// Profile
  • FocusINFRASTRUCTURE
  • PathNOC → DEVOPS
  • StackLINUX / NET / OCI
  • StatusLEARNING
  • LocationEARTH / REMOTE
// Currently
  • StudyingCCNP ENARSI
  • PracticingK8S / TERRAFORM
  • ReadingUNIX PHILOSOPHY
03 Experience / Trajectory

A path through the stack.

2024
NOC Engineering

Started in network operations — monitoring device health, responding to alerts, learning how production networks behave under load.

MONITORING INCIDENT SNMP
2025
Network Operations

Deeper into routing, switching and VLAN design. Began automating repetitive tasks with Bash and Ansible.

VLAN OSPF ANSIBLE
2026
Infrastructure / DevOps

Pivoting toward DevOps and systems engineering — containers, CI/CD, observability stacks, infrastructure as code.

DOCKER CI/CD OBSERVABILITY
04 Networking / Protocols

The language packets speak.

Networking isn't a diagram on a slide — it's a living system of decisions made in microseconds. These are the protocols I work with daily, small agreements about how information moves.

IPv6
128-bit addressing & NAT-free design
OSPF
Link-state interior routing
BGP
Path-vector inter-AS routing
VLAN
802.1Q broadcast domain isolation
DNS
Hierarchical name resolution
DHCP
Dynamic host configuration
TCP/IP
Reliable transport & addressing
ARP
L3-to-L2 address mapping
05 Systems / DevOps

The machinery behind the screen.

Stack / Tooling
Last updated: 2025
LINUX
Daily driver — systemd, kernel tuning, networking, package management.
DOCKER
Containers, compose files, volumes, multi-stage builds.
PROMETHEUS
Metrics collection, PromQL, exporters, alerting rules.
GRAFANA
Dashboards, alerting, data source composition.
NGINX
Reverse proxy, TLS termination, load balancing.
POSTGRES
Relational modeling, indexing, replication, backups.
VM / KVM
Virtualization, snapshots, bridged networking, libvirt.
ANSIBLE
Configuration management, playbooks, roles, idempotency.
06 Projects / Built

Things I've built.

07 Lab / Workspace

The space where I practice.

01
Network Lab
GNS3 and EVE-NG topologies, reproducing production scenarios in isolation.
GNS3EVE-NG
02
Container Stack
Dockerized services — DNS, monitoring, reverse proxy. Compose-driven and reproducible.
DOCKERCOMPOSE
03
VM Hypervisor
Proxmox and KVM clusters — snapshotting, migration, bridged networking.
PROXMOXKVM
04
Observability
Prometheus, Grafana and Loki — metrics, logs, traces in one place.
PROMETHEUSLOKI
05
Automation
Ansible roles for repeatable provisioning, Bash for the gaps in between.
ANSIBLEBASH
06
Web Layer
Nginx reverse proxy, static hosting, TLS via Let's Encrypt.
NGINXTLS
End of path

Let's build something.

Open to conversations about network engineering, infrastructure roles, and DevOps work — projects where reliability actually matters.

LinkedIn GitHub contact@kritandahal.com.np
Kritan Dahal — 2025 / Spatial Portfolio