Port
Port 11211 — Memcached
Port 11211 (TCP/UDP) is used by Memcached. Memcached caching service.
Port 11211 at a glance
| Property | Value |
|---|---|
| Port number | 11211 |
| Transport | TCP/UDP |
| Service | Memcached |
| Category | Registered port |
What it is used for
Memcached caching service.
Security considerations
Used in massive UDP amplification DDoS. Disable UDP; never expose.
See our full TCP/UDP port reference and learn how firewalls filter ports in the CyberOps course.
Frequently asked questions
What is port 11211 used for?
Port 11211 (TCP/UDP) is used by Memcached. Memcached caching service.
Is port 11211 TCP or UDP?
Port 11211 uses TCP/UDP.
Is it safe to open port 11211?
Used in massive UDP amplification DDoS. Disable UDP; never expose.
Related
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