What Port 2711 Is
Port 2711 is registered with IANA as SSO Control, assigned to Beta Systems Software AG, a German enterprise software company specializing in identity and access management.1 The registration covers both TCP and UDP.
Beta Systems builds IAM software for large enterprises — user provisioning, access governance, audit trails. The "SSO Control" designation likely refers to a control channel in their single sign-on infrastructure, where a management or coordination service listens for commands separate from the authentication traffic itself.
That said: documentation is thin. The IANA entry exists; a detailed protocol specification does not appear to be publicly available. This is common for enterprise software vendors who register ports for internal products that never see wide third-party adoption.
The Registered Port Range
Port 2711 sits in the registered ports range: 1024–49151. This range is administered by IANA, and vendors or individuals can apply to have a service officially associated with a port number. Registration requires a contact and a service name, but it does not require deployment, adoption, or ongoing maintenance.
The well-known ports (0–1023) are different — they're tightly controlled and represent protocols the Internet actually depends on: HTTP on 80, HTTPS on 443, SSH on 22. The registered range is looser. Thousands of entries in it represent software that shipped once, companies that pivoted, or protocols that never left the lab.
Port 2711 is probably one of those. A real assignment. A real company. A port almost nobody opens.
Security Notes
Some scanners flag port 2711 as historically associated with malware — this is a common warning that applies to hundreds of registered ports. It means a trojan or malicious tool used this port at some point, not that the port is inherently dangerous. If you see it open on a machine you manage and you're not running Beta Systems IAM software, that's worth investigating.
How to Check What's Listening
If port 2711 is open on a system you're responsible for, find out what opened it:
On Linux/macOS:
On Windows:
Then look up the process ID (PID) against your running processes. If nothing in your software inventory explains it, treat it as suspicious until you confirm otherwise.
آیا دا پاڼه ګټوره وه؟