| Communication protocol | |
| Purpose | Identification |
|---|---|
| Developer(s) | Michael C. St. Johns at US Department of Defense |
| Introduction | February 1993 |
| Based on | RFC 931 |
| OSI layer | Application layer (Layer 7) |
| Port(s) | TCP/113 |
| RFC(s) | RFC 1413 |
| Internet protocol suite |
|---|
| Application layer |
| Transport layer |
| Internet layer |
| Link layer |
 | This article needs to be updated. (May 2016) |
 | This article needs additional citations for verification. (January 2012) |
The Ident Protocol (Identification Protocol, Ident), specified in RFC 1413, is an Internet protocol that helps identify the user of a particular TCP connection. One popular daemon program for providing the ident service is identd.