8081
HTTP Alternate / Nexus Repository
Medium RiskTCP — Web
Port Overview
Port Number
8081
Service Name
HTTP Alternate / Nexus Repository
Transport Protocol
TCP
Category
Web
Security Risk
Medium
Port Range
Registered (1024-49151)
What is Port 8081?
Port 8081 is a widely used alternate HTTP port for web servers, development tools, and artifact repositories. Sonatype Nexus Repository Manager uses this port as its default HTTP port for hosting Maven, npm, and Docker repositories. It is also commonly used by Hazelcast, various microservice frameworks, and local development proxy servers.
TCP
Web
Commonly Used
Security Considerations
Port 8081 (HTTP Alternate / Nexus Repository) is classified as medium risk. While this service is commonly exposed, consider using encrypted alternatives where available.
Recommendation: Keep the service updated. Monitor logs for unusual activity.