---
name: "ns_addrbyhost"
section: "3aolserver"
platform: "linux"
package: "aolserver4-dev"
version: "4.5.1-18.1"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/ns_addrbyhost"
---

# ns\_addrbyhost(3aolserver)

Domain Name Service routines.

```

```

## NAME

ns\_addrbyhost, ns\_hostbyaddr - Domain Name Service routines.

## SYNOPSIS

```
ns_addrbyhost address
ns_hostbyaddr hostname
```

```

```

## DESCRIPTION

These commands utilize the platforms name resolution routines which normally access the Domain Name Service (DNS) to translate IP addresses into fully qualified hostnames and vice versa.

- **ns\_addrbyhost** *address*

  Returns the fully qualified domain name for given IP address expressed in dotted decimal format (e.g., 72.14.207.99).

- **ns\_hostbyaddr Ihostname**

  Returns the dotted decimal address for a partial or fully qualified domain name (e.g., google.com).

## KEYWORDS

DNS, hostname, address