[PLUG] Unknown user?

[Rich Shepard]

On 7 Aug 2002, Alan wrote:

> Looks like you installed arpwatch after you installed postfix.

  Probably when I installed ethereal, Alan.
 
> If you are not using arpwatch, you should uninstall it.  It forces your
> network card into promiscuous mode.

  Is there a way, short of uninstallation, to deactivate it until needed?
What do I read to learn when it _is_ needed?

Thanks,

Rich