yppoll Command
Purpose
Displays the order number (ID number) of the Network Information Services (NIS) map currently in use on the server.
Syntax
Description
The yppoll command uses the ypserv daemon to display the order number of the map you specify in the MapName parameter. An order number is a map's ID number and is assigned by the system. This number changes whenever a map is updated. Use the yppoll command whenever you want to make sure your servers are using the most current version of a particular map.
The yppoll command
can run on systems that have either version 1 or version 2 of the Network Information Services (NIS) protocol installed.
Be aware, however, that each version of the protocol has its own set
of diagnostic messages.
Note: When
specifying a MapName, be sure to enter the map's full name.
The yppoll command does not recognize map nicknames.
Flags
| Item | Description |
|---|---|
| -h Host | Enables you to specify a server other than the default server. To find out which server the command defaults to, use the ypwhich command. |
| -d Domain | Enables you to specify a domain other than the default domain. To find out which domain the command defaults to, use the domainname command. |
Examples
- To look at a map located
on a particular host, type:
In this example, the yppoll command displays the order number for the netgroups.byuser map located on the host named thor./usr/sbin/yppoll -h thor netgroups.byuser - To look at a map on
a domain, type:
In this example, the yppoll command displays the order number for the hosts.byname map located in the domain atlantis./usr/sbin/yppoll -d atlantis hosts.byname