whoami
Majid
Ahmed.
// Senior Network & Security Engineer · UAE · 10+ years securing enterprise infrastructure
CCIE #55880
CISSP
PCNSE
NSE4
CEH
CompTIA Sec+
ISO 27001
// latest
TryHackMe Writeups
Jun 2026
TryHackMe: Simple CTF
Walkthrough of the Simple CTF room — enumeration, FTP, SSH privilege escalation.
Read writeup// projects
Notable Projects
Palo Alto
PA-3000 → PA-5000 Migration
Full lifecycle firewall migration with policy cleanup, zone redesign, and zero-downtime cutover.
DetailsNetwork
Cisco → Arista Migration
Enterprise data center migration from Cisco to Arista with BGP, VRF, and MPLS re-architecture.
DetailsSecurity
GetVPN / GDOI Deployment
Group encrypted transport VPN deployment across enterprise WAN for secure multicast traffic.
Details