SMB
Master SMB over TCP operations
Protect data with least privilege, encryption, and consistent monitoring.
- Default port
- 445
- Protocol
- TCP
- Primary use
- File sharing and directory services
Why SMB over TCP matters
SMB backs file storage and domain services; misconfigurations invite lateral movement.
Immediate actions
Review share ACLs, enable signing or encryption, and isolate critical workloads.
Operational guardrails
Track replication, latency, and SMB Multichannel health to catch bottlenecks early.