At BSNL, I administered Cisco ISR 2900 routers and Catalyst switches in a live production network, supported LAN operations, and resolved connectivity incidents. I also handled structured cabling, physical-layer fault isolation, and networking equipment inventory.
In my projects, I deployed and hardened an Ubuntu server with Apache, SSH, and UFW, and automated backups with Bash and Cron. I also integrated Suricata IDS/IPS with Wazuh SIEM for threat detection and automated iptables-based blocking, and designed a simulated campus network with VLANs and access control lists.

