---
name: "ident"
section: "8"
platform: "linux"
package: "inn"
version: "2.7.4-4"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/ident/8"
---

# ident(8)

nnrpd ident resolver

## NAME

ident - nnrpd ident resolver

## SYNOPSIS

**ident** \[**-p** *port*\] \[**-t**\]

## DESCRIPTION

This program attempts to resolve usernames for **nnrpd** by using the ident protocol to query the remote host.  It contacts the remote host using either IPv4 or IPv6 depending on which protocol was used for the incoming NNTP connection.

## OPTIONS

- **-p** *port*

  If this option is given, attempt to contact identd on the specified remote port (which can be a numeric or symbolic specification). Non-numeric values will be looked up using [getservbyname(3)](/getservbyname/3.md).  The default value is the result of `"getservbyname("ident")"` if available, or port 113 otherwise.

- **-t**

  If this option is given, the identity returned will never have a domain part.  That is, if the remote server returns a result containing an `"@"` character, **ident** truncates the response at the `"@"`.  This is useful to allow the *default-domain* parameter in *readers.conf* to override the domain supplied by the remote host (particularly if the supplied domain part is an unqualified local machine name rather than a full domain name).

## EXAMPLE

The following [readers.conf(5)](/readers.conf/5.md) fragment tells **nnrpd** to trust ident information for hosts on a local network, but to replace the domain returned from the ident query:

```
    auth LAN {
        hosts: "192.168/16"
        res: "ident -t"
        default-domain: "internal.example.com"
    }
    access LAN {
        users: "*@internal.example.com"
        newsgroups: example.*
    }
```

Access is granted to the example.\* groups for all users on the local network whose machines respond to ident queries.

## HISTORY

This documentation was written by Jeffrey M. Vinocur \<jeff@litech.org\>.

## SEE ALSO

[nnrpd(8)](/nnrpd/8.md), [readers.conf(5)](/readers.conf/5.md)