As the 2000s progressed, Compaq was absorbed into HP. The compaqdiag brand was slowly deprecated in favor of (which still exists today as HP PC Hardware Diagnostics UEFI). Furthermore, three technological shifts killed the necessity for standalone DOS diagnostics:
: If the service must remain active for legacy support, it should never be exposed to the public internet. Use internal firewalls or ACLs to restrict access only to authorized administrative subnets. compaqdiag
"compaqdiag" refers to the (later integrated into HP Insight Management Agents). Historically, this service ran on port 2301 to provide web-based diagnostic information for Compaq servers. As the 2000s progressed, Compaq was absorbed into HP