thahishan User

I am a networking-focused systems administrator with hands-on experience in designing and deploying secure enterprise networks, private clouds, and resilient backup strategies. My training emphasizes Windows and Linux administration, Cisco/Aruba routing and switching, and IT security.

During my diploma program I designed and implemented a cloud-based enterprise network with DNS, DHCP, Active Directory, automated VM deployment with PowerCLI, and Veeam backups to ensure recoverability. I have also deployed Nextcloud with SSL and created rsync-based offsite disaster recovery procedures.

My practical projects include building full Linux server-client environments with LDAP authentication, DNS, Apache hosting, Postfix mail, SAMBA file sharing, and secure SSH access. I have applied network forensics and threat detection tools such as Wireshark, Sguil, Kibana, and NetworkMiner to identify indicators of compromise and support incident response exercises.

I combine technical rigor with customer-facing support experience from remote technical support and inbound call roles, and I bring strong troubleshooting, documentation, and communication skills to operations-focused IT roles.