Mithun M.

I help businesses design, secure, troubleshoot, and optimize enterprise network and infrastructure environments. With 12+ years of hands-on experience in ISP, Data Center, Enterprise Networking, and Systems Administration, I have successfully deployed and managed Cisco, Palo Alto, MikroTik, VMware, Linux, and cloud-based infrastructure solutions for organizations of all sizes. My expertise includes Network Architecture, Network Security, Firewall Deployment, Routing & Switching, VMware Virtualization, Linux Administration, and Infrastructure Monitoring. I specialize in designing highly available, scalable, and secure environments that improve performance, reduce downtime, and support business growth. Core Expertise: ✔ Network Architecture & Design ✔ Network Security & Firewall Solutions (Palo Alto, Cisco ASA/FTD, pfSense, Sophos) ✔ Enterprise Routing & Switching (BGP, OSPF, EIGRP, MPLS) ✔ Data Center & ISP Network Infrastructure ✔ Cisco Nexus, Catalyst, ISR, ASR & Meraki ✔ MikroTik Routing, VPN, VLAN & Automation ✔ VMware vSphere, ESXi & Virtualization ✔ Linux System Administration (RHEL, CentOS, Ubuntu, Debian) ✔ AWS Networking & Cloud Infrastructure ✔ Monitoring & Observability (Zabbix, SolarWinds, Grafana, Prometheus, LibreNMS) ✔ Network Automation using Python ✔ Security Assessment (Wazuh, Nessus, Nmap, OpenVAS) ✔ SSL/TLS Certificate Deployment & Management (Commercial SSL, Let's Encrypt, Renewal & Troubleshooting) ✔ Linux Infrastructure & Services DNS (Primary DNS, Secondary DNS) Mail Servers (Zimbra, Postfix) Web Servers (Apache, Nginx) Hosting Platforms (WHM, cPanel, WordPress) FTP Services TACACS+ FreeRADIUS Samba File Services Whether you need a new network deployment, firewall migration, VPN implementation, BGP/MPLS troubleshooting, VMware infrastructure support, or security hardening, I can deliver reliable and business-focused solutions. Let's discuss how I can help strengthen and optimize your infrastructure.