Port
Port 135 — MS RPC
Port 135 (TCP) is used by MS RPC. Microsoft RPC endpoint mapper.
Port 135 at a glance
| Property | Value |
|---|---|
| Port number | 135 |
| Transport | TCP |
| Service | MS RPC |
| Category | Well-known port |
What it is used for
Microsoft RPC endpoint mapper.
Security considerations
Heavily targeted by worms. Block at the perimeter.
See our full TCP/UDP port reference and learn how firewalls filter ports in the CyberOps course.
Frequently asked questions
What is port 135 used for?
Port 135 (TCP) is used by MS RPC. Microsoft RPC endpoint mapper.
Is port 135 TCP or UDP?
Port 135 uses TCP.
Is it safe to open port 135?
Heavily targeted by worms. Block at the perimeter.
Related
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