Is an [Internet](https://en.wikipedia.org/wiki/Internet) [protocol](https://en.wikipedia.org/wiki/Protocol_%28computing%29) that helps identify the user of a particular [TCP](https://en.wikipedia.org/wiki/Transmission_Control_Protocol) connection.
**Default port:** 113
```text
PORT STATE SERVICE
113/tcp open ident
```
## **Enumeration**
### **Manual - Get user/Identify the service**
If a machine is running the service ident and samba \(445\) and you are connected to samba using the port 43218. You can get which user is running the samba service by doing:
If you just press enter when you conenct to the service:
Other errors:
### Nmap
By default \(-sC\) nmap will identify every user of every running port:
```text
PORT STATE SERVICE VERSION
22/tcp open ssh OpenSSH 4.3p2 Debian 9 (protocol 2.0)
Ident-user-enum is a simple PERL script to query the ident service (113/TCP) in order to determine the owner of the process listening on each TCP port of a target system. The list of usernames gathered can be used for password guessing attacks on other network services. It can be installed with `apt install ident-user-enum`.
