:11211
(TCP/UDP)
High Risk
Memcached
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TCP/UDP — Database
Port Overview
Port Number
11211
Service Name
Memcached
Transport Protocol
TCP/UDP
Category
Database
Security Risk
High
Port Range
Registered (1024-49151)
What is Port 11211?
Memcached distributed memory caching system. High-performance key-value cache used to speed up web applications by reducing database load.
TCP/UDP
Database
Commonly Used
Security Considerations
Port 11211 (Memcached) is classified as high risk. This port is a common target for automated scanning and brute-force attacks. If you must expose it, restrict access to known IP addresses.
Recommendation: Use firewall rules to whitelist trusted IPs. Enable rate limiting and intrusion detection.