---
name: "in.aspd"
section: "8"
platform: "linux"
package: "asp"
version: "1.8-8+b2"
release: "Debian 11 (Bullseye)"
platforms: ["linux"]
url: "https://new.carta.tech/in.aspd"
---

# in.aspd(8)

Address Search Protocol Daemon

## NAME

aspd - Address Search Protocol Daemon

## SYNOPSIS

**aspd**    \[**-r** *repetitions*\] \[**-i** *interface*\] \[*hostname*\]\
 **aspd    -V**

**in.aspd** \[**-r** *repetitions*\] \[*hostname*\]\
 **in.aspd -V**

## DESCRIPTION

**Aspd** is a daemon that waits for incoming address requests on **asp**'s port. If **aspd** detects itself as being the searched host, it sends a reply to the client, allowing the retrieval of its IP address. It is possible to specify an alternate *hostname* on command line, instead of using the value returned from the [**gethostname**(3)](/gethostname/3.md) function. This is useful if your hostname is dynamically changed when the link goes up.

If **aspd** is invoked as **in.aspd** it will work as a server: it makes its work and exit, instead of wait for new requests; this is useful if you want [**inetd**(8)](/inetd/8.md) to automatically run the server when a request arrives.

## OPTIONS

- **-r** *repetitions*

  Set the number of times to re-send the reply. Default is 5 times.

- **-i** *interface*

  Set the interface used to get the address to send to the client, for example **ppp0**. Note that this option can't be used if **aspd** is invoked by inetd. Note also that you have to kill **aspd** if the interface address changes.

- **-V**

  Show version information

## LOGGING

The peer IP address and the searched hostname are logged through the [**syslogd**(8)](/syslogd/8.md) system logger daemon, using the **daemon** facility and the  **notice** level. Transmission errors use the **warning** level and are logged only if **aspd** was compiled with the debug support.

## FILES

- */etc/services*

  Used by **aspd** to find the asp protocol port number.

## BUGS

Maybe.

## AUTHOR

Stenio Brunetta \<stenio@brunettaeperin.it\>

Comments and suggestions are welcome.

## SEE ALSO

[**asp**(1)](/asp/1.md), [**inetd**(8)](/inetd/8.md), [**syslog**(3)](/syslog/3.md), [**syslogd**(8)](/syslogd/8.md).