Linux Command Directory


Linux in a Nutshell

This directory of Linux commands is from Linux in a Nutshell, 5th Edition.

Click on any of the 687 commands below to get a description and list of available options. All links in the command summaries point to the online version of the book on Safari Bookshelf.

Buy it now, or read it online on Safari Bookshelf.



rwhod

rwhod [options]

TCP/IP command. System-status server that maintains the database used by the rwho and ruptime programs. Its operation is predicated on the ability to broadcast messages on a network. As a producer of information, rwhod periodically queries the state of the system and constructs status messages, which are broadcast on a network. As a consumer of information, it listens for other rwhod servers' status messages, validates them, then records them in a collection of files located in the directory /var/spool/rwho. Messages received by the rwhod server are discarded unless they originated at an rwhod server's port. Status messages are generated approximately once every three minutes.

Options

-a

Use both broadcast and point-to-point interfaces. This is the default.

-b

Use only broadcast interfaces.

-p

Use only point-to-point interfaces.

-u user

Run daemon as specified user.


More Linux resources from O'Reilly >>

Popular Topics

Browse Books & Videos

International Sites

O'Reilly China O'Reilly Germany O'Reilly Japan