Very Computer

I've heard some comments in this newsgroup about eth0 going into promiscuous
mode.     How do you disable an Ethernet card from entering promiscuous mode
at boot time?    The [MAN] page for "ifconfig" tells you how to manually
turn this feature off, but does anyone know how to permanently disable this
feature?

I do not recall ever turning this feature on when configuring my card.  Some
people in this newsgroup believe that this is a sign of being "Hacked".
I'm not sure if this is the case, or I enabled it accidentally when
configuring my network.   Is anyone else having a problem with promiscuous
mode?

Jay
--
"I don't want to achieve immortality
through my work.  I want to achieve
it through not dying."
                     - Woody Allen

Hi Phooey,

You have to find the program causing the switch into promiscuous mode.
Next step is then either to drop or replace the program or to convince
it with parameters not to switch into this mode.

Quote:> turn this feature off, but does anyone know how to permanently disable this
> feature?

You do not need to disable it permanently as only root does have the
right to enable this mode.

Quote:> I do not recall ever turning this feature on when configuring my card.  Some
> people in this newsgroup believe that this is a sign of being "Hacked".

I would only think about being hacked if it does occour spurious, says
without a good reason. If one is not hacked there is a well-known class
of programs which do use this feature, network-sniffer (tcpdump and
friends) and bridges are contained within.

Quote:> I'm not sure if this is the case, or I enabled it accidentally when
> configuring my network.   Is anyone else having a problem with promiscuous
> mode?

I have not. If one of my interfaces is in promiscuous mode I know why
this does happen.

Malware