---
name: "ypinit"
section: "8"
platform: "openbsd"
package: "man"
version: "8.0-current-20261101"
release: "OpenBSD 8.0-current (2026-11-01)"
platforms: ["linux", "freebsd", "openbsd"]
url: "https://new.carta.tech/ypinit"
---

# ypinit(8)

create a YP server (master or slave)

## NAME

**ypinit** – create a YP server (master or slave)

## SYNOPSIS

**ypinit** **-m** \[*domainname*\]

**ypinit** **-s** *master\_server* \[*domainname*\]

**ypinit** **-u** \[*domainname*\]

## DESCRIPTION

**ypinit** may be used to set up a YP server, or to change the ypserver map. If *domainname* is not given, the default domainname will be used.

The options are as follows:

- **-m** \[*domainname*\]

  Set up a master YP server.

- **-s** *master\_server* \[*domainname*\]

  Set up a slave YP server. *master\_server* must be a running YP master server.

- **-u** \[*domainname*\]

  Update the ypserver map on a YP master server, or create a new one if the old one has been deleted.

## SEE ALSO

[domainname(1)](/domainname/1.md), [Makefile.yp(8)](/Makefile.yp/8.md), [yp(8)](/yp/8.md), [ypserv(8)](/ypserv/8.md)

## AUTHORS

Mats O Jansson ⟨*moj@stacken.kth.se*⟩