tarun@net-core:~$
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OPEN TO ENTRY-LEVEL NETWORK ENGINEERING ROLES

Building & Hardening Reliable Digital Infrastructure

Hi, I'm Tarun Murali. A passionate Network Engineering fresher, Linux sysadmin, and cybersecurity enthusiast focused on routing, switching, packet analysis, and network defense.

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CERTIFICATION CCNA Candidate
LINUX CORE Debian / RHEL / Arch
ANALYSIS Wireshark & Scapy
FIREWALLS pfSense / OPNsense
/home/tarun/about.txt - Network Shell
bash 5.2
tarun@net-core:~$ cat ./about.txt

I am an entry-level Network Engineer and Linux enthusiast with a strong interest in network security, enterprise routing & switching, and infrastructure automation. My journey began with experimenting on Linux server administration and dissecting network traffic, which quickly evolved into a dedicated pursuit of building and hardening network environments.

I am actively seeking entry-level Network Engineering opportunities where I can leverage my hands-on skills in Cisco Packet Tracer / GNS3 lab design, subnet planning, WireGuard VPN configuration, firewall rulesets (pfSense/OPNsense), and packet inspection to deliver reliable, secure network operations.

Interactive CLI Console Mode:

Type help, ping 8.8.8.8, show interfaces, cat skills.json, or clear below:

tarun@net-core:~$
ONLINE / READY
Tarun Murali - Professional Photo

Tarun Murali

Entry-Level Network Engineer

Open to Remote/Onsite
CCNA Candidate

💡 Replace resources/profile_photo.jpg with your photo file.

COMPETENCIES

Technical Skill Matrix

Practical hands-on domain knowledge in networking, systems administration, and security.

Networking & Protocols

  • TCP/IP, OSI 7-Layer Model
  • OSPF, BGP, Static Routing
  • VLANs, 802.1Q Trunking, STP
  • IPv4 CIDR Subnetting & IPv6
  • NAT, DHCP, DNS, IPsec, VPN

Linux & SysAdmin

  • Debian, Ubuntu Server, RHEL
  • Bash Scripting & Automation
  • Systemd, Journalctl, Cron
  • Netplan, iproute2, IPTables/NFTables
  • SSH Hardening & Key Auth

Security & Tools

  • Wireshark & TShark Packet Analysis
  • Nmap Network Discovery & Audit
  • Python Packet Manipulation (Scapy)
  • pfSense / OPNsense ACL Hardening
  • Cisco Packet Tracer & GNS3 Labs
PORTFOLIO WORK

Projects

Software applications, network automation tools, and security lab projects built by Tarun Murali.

LAB DOCUMENTATION

CTF & Lab Write-ups

Detailed technical writeups of networking labs, Cisco topologies, Wireshark PCAPs, and TryHackMe security rooms.

ARTICLES & KNOWLEDGE BASE

Technical Blog

In-depth guides on networking fundamentals, Linux commands, VPNs, and homelab architecture.

CURRICULUM VITAE

Tarun Murali

Entry-Level Network Engineer / Systems & Security Enthusiast

Career Objective

Detail-oriented Computer Science / Network Engineering fresher seeking an entry-level Network Engineer or Junior Infrastructure Security Engineer role. Eager to leverage strong foundational knowledge of TCP/IP, Cisco routing/switching, Linux system administration, and network troubleshooting to contribute to reliable enterprise network infrastructure.

Core Skills & Capabilities

NETWORKING & PROTOCOLS

Cisco IOS, OSPF, BGP, VLANs, 802.1Q, STP, IPv4/IPv6, CIDR Subnetting, NAT, DNS, DHCP, VPN (WireGuard, IPsec)

OPERATING SYSTEMS & SYSADMIN

Linux (Ubuntu, Debian, RHEL, Arch), Bash Shell Scripting, Systemd, IPTables, NFTables, SSH, Cron, System Hardening

TOOLS & UTILITIES

Wireshark, TShark, Nmap, Cisco Packet Tracer, GNS3, Scapy, Netmiko, Git, Docker, pfSense / OPNsense

LANGUAGES & AUTOMATION

Python 3 (Socket, Network APIs), Bash, HTML/CSS/JS, YAML/JSON, Markdown

Certifications & Pursuits

  • Cisco Certified Network Associate (CCNA 200-301) In Active Preparation / Target Exam Completion
    In Progress
  • CompTIA Network+ / Security+ Knowledge Foundation Self-Directed Study & Practical Hands-on Labs
    Completed Labs

Education

Bachelor of Science / Technology in Computer Science & Engineering

Recent Graduate / Fresher

Key Coursework: Computer Networks, Operating Systems, Information Security, Data Structures, Software Engineering.

Tarun Murali

Tarun Murali

@tarun-murali

Aspiring Network Engineer • Linux & Security Enthusiast

LinkedIn Profile GitHub Repositories Email (sudo.tarun@proton.me) TryHackMe Profile X / Twitter
SSH Ed25519 Public Key:
ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOrX60J7wN0tarunmuralinetworkkey
SELF-HOSTED INFRASTRUCTURE

Homelab & Network Topology

Interactive overview of my home network infrastructure, firewall VLANs, hypervisors, and self-hosted services.

Network Topology Diagram
● ALL SYSTEMS OPERATIONAL

Click any node below to inspect hardware specs, IP assignments, VLANs, and active services:

192.168.1.1
OPNsense Firewall
WAN / Gateway / DNS
192.168.1.2
L2/L3 Core Switch
VLAN 10/20/30/40
192.168.1.100
Proxmox VE Node
Homelab Hypervisor
192.168.1.150
TrueNAS / Storage
ZFS RAID Pool
192.168.1.200
Pi-hole + WireGuard
DNS Sinkhole & VPN

VLAN Segmentation Matrix

VLAN ID NAME SUBNET PURPOSE / DESCRIPTION SECURITY POLICY
VLAN 10 Management 192.168.10.0/24 Switch IPMI, Proxmox Web UI, Router Admin Strict Auth Only
VLAN 20 Homelab VMs 192.168.20.0/24 Docker Containers, Web Apps, Dev Workstations Local LAN Routable
VLAN 30 IoT Isolated 192.168.30.0/24 Smart devices, cameras, streaming appliances No WAN / Blocked LAN
VLAN 40 Guest Network 192.168.40.0/24 Visitor Wi-Fi access Isolated Internet Only
GET IN TOUCH

Contact

Interested in discussing network engineering opportunities, lab setups, or potential roles? Reach out!

Direct Email

Send me an email anytime for job opportunities or inquiries.

sudo.tarun@proton.me

Availability & Location

Available for Remote and On-site / Hybrid Network Engineering roles.

Network Latency Diagnostic RTT 0.042 ms
PING tarun-murali.me (127.0.0.1): 56 data bytes
64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.042 ms
--- tarun-murali.me ping statistics --- 0% packet loss

Send a Message

STATUS 503 :: SCHEDULED MAINTENANCE

System Scheduled Maintenance

This section of the website is currently undergoing scheduled network maintenance and infrastructure upgrades.

MAINTENANCE STATUS LOG [IN PROGRESS]
EVENT: Firmware upgrade & ACL rule re-indexing
WINDOW: Active Service Window
EST. COMPLETE: < 30 minutes
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STATUS 501 :: UNDER CONSTRUCTION

Network Node Under Construction

This section of the website is currently under active construction and deployment. Check back soon for updates!

DEPLOYMENT PROGRESS 75%
Building custom lab topology components & technical documentation.
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