The San Bernardino City Unified School District (SBCUSD) is seeking comprehensive cybersecurity solutions through multiple procurements that include a district-wide Application Vulnerability Patch Management system, a Network Access Control (NAC) solution, a centralized DHCP/DNS/IPAM (DDI) system with integrated cybersecurity capabilities, and a Managed Next-Generation Extended Detection and Response (XDR) with Email Security. Each solution must be compatible with SBCUSD’s large and diverse multi-platform environment, which spans over 150,000 devices across 85+ school and administrative sites. The Patch Management system must automate vulnerability detection, prioritization, patch deployment, and reporting across Windows, macOS, Linux, iOS, Android, and Chrome OS environments, and meet CIS and NIST security benchmarks. The NAC solution (preferably Aruba ClearPass or equivalent) must securely manage network access with agent-based and agentless support, integrate with existing infrastructure (Cisco, HPE, Fortinet, Crowdstrike, etc.), and provide role-based access, posturing, and policy enforcement. The DDI solution must offer high-availability DHCP/DNS services, robust IPAM functionality, DoH/DoT support, and advanced DNS-layer security features to enhance visibility and control over network resources...