Zafar I.

I’m Zafar, a Network & System Engineer with 15+ years of hands-on experience in enterprise networking, server administration, network security, virtualization, and infrastructure monitoring. I specialize in Ubiquiti UniFi, Zabbix Network Monitoring, Network Administration, and System Administration. I help businesses build reliable, secure, and well-monitored IT infrastructures — from small offices to complex enterprise environments. Ubiquiti UniFi Network Expert UniFi Network Design & Architecture UniFi Dream Machine (UDM / UDM Pro) UniFi Security Gateway (USG) UniFi Cloud Gateway UniFi Switches UniFi Access Points UniFi Controller / UniFi Network Application VLAN Configuration Inter-VLAN Routing DHCP & DNS Firewall Rules Guest Networks WiFi Configuration & Optimization Wireless Roaming Site-to-Site VPN Remote Access VPN Network Segmentation Network Troubleshooting UniFi Adoption & Device Management Multi-site UniFi Deployment Zabbix Monitoring & Infrastructure Monitoring I specialize in Zabbix monitoring and network/server monitoring, helping businesses gain visibility into their infrastructure. Zabbix Server Installation & Configuration Network Device Monitoring Cisco Monitoring Ubiquiti / UniFi Monitoring Linux Server Monitoring Windows Server Monitoring SNMP Monitoring CPU, RAM, Disk & Interface Monitoring Network Traffic Monitoring Alerts & Triggers Templates Dashboards Notifications Custom Monitoring Infrastructure Health Monitoring Performance Monitoring Troubleshooting Zabbix Issues Fortinet / FortiGate SonicWall Sophos pfSense Cisco ASA Firewall Migration VPN Configuration Security Policies VLAN Segmentation Network Security Troubleshooting Windows Server Administration Active Directory Group Policy File Services User & Permission Management CCNA CCNP