Re: Is promiscuous mode bad?

2004-08-20 Thread Geert Hendrickx
On Mon, Aug 16, 2004 at 02:24:00PM +0200, Ruben de Groot wrote: On Sun, Aug 15, 2004 at 07:53:10PM -0700, Kevin Stevens typed: A lot of network scanners also trigger on NICS in promiscuous mode (there's a way to detect them, I forget the details at the moment) because admins want to

Re: Is promiscuous mode bad?

2004-08-17 Thread Siddhartha Jain
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 horio shoichi wrote: | On Mon, 16 Aug 2004 14:24:00 +0200 | Ruben de Groot [EMAIL PROTECTED] wrote: | |On Sun, Aug 15, 2004 at 07:53:10PM -0700, Kevin Stevens typed: | |A lot of network scanners also trigger on NICS in promiscuous mode |(there's a way

Re: Is promiscuous mode bad?

2004-08-16 Thread Ruben de Groot
On Sun, Aug 15, 2004 at 07:53:10PM -0700, Kevin Stevens typed: A lot of network scanners also trigger on NICS in promiscuous mode (there's a way to detect them, I forget the details at the moment) because admins want to know if any hosts are out there sniffing. How sure are you about that?

RE: Is promiscuous mode bad?

2004-08-16 Thread JJB
Promiscuous mode can also be enabled on most hardware routers. A hardware router in front of a private network with promiscuous mode enabled allows public internet users to access (sniff) all the traffic passing through the router as well as insert packets. This is major security leak and one

Is promiscuous mode bad?

2004-08-16 Thread Siddhartha Jain
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 JJB wrote: | Promiscuous mode can also be enabled on most hardware routers. A | hardware router in front of a private network with promiscuous mode | enabled allows public internet users to access (sniff) all the | traffic passing through the router as

Re: Is promiscuous mode bad?

2004-08-16 Thread Dan Nelson
In the last episode (Aug 16), Ruben de Groot said: On Sun, Aug 15, 2004 at 07:53:10PM -0700, Kevin Stevens typed: A lot of network scanners also trigger on NICS in promiscuous mode (there's a way to detect them, I forget the details at the moment) because admins want to know if any hosts

Re: Is promiscuous mode bad?

2004-08-16 Thread horio shoichi
On Mon, 16 Aug 2004 14:24:00 +0200 Ruben de Groot [EMAIL PROTECTED] wrote: On Sun, Aug 15, 2004 at 07:53:10PM -0700, Kevin Stevens typed: A lot of network scanners also trigger on NICS in promiscuous mode (there's a way to detect them, I forget the details at the moment) because admins

Is promiscuous mode bad?

2004-08-15 Thread Aaron Dalton
I was running security/rkhunter and it warns me about my network card being in promiscuous mode. I have a few questions: 1) What exactly is promiscuous mode? (I've done some googling but haven't found anything really clear) 2) Why might it be considered a bad thing? 3) How do I disable it if it

Re: Is promiscuous mode bad?

2004-08-15 Thread Bill Moran
Aaron Dalton [EMAIL PROTECTED] wrote: I was running security/rkhunter and it warns me about my network card being in promiscuous mode. I have a few questions: 1) What exactly is promiscuous mode? (I've done some googling but haven't found anything really clear) Promiscuous mode means the

Re: Is promiscuous mode bad?

2004-08-15 Thread Remko Lodder
Aaron Dalton wrote: I was running security/rkhunter and it warns me about my network card being in promiscuous mode. I have a few questions: 1) What exactly is promiscuous mode? (I've done some googling but haven't found anything really clear) 2) Why might it be considered a bad thing? 3) How

Re: Is promiscuous mode bad?

2004-08-15 Thread Aaron Dalton
Thank you so much for your replies! This makes much more sense now. I am currently running Snort. I will examine its documentation to see if promiscuous mode is really necessary. In the meantime, am I correct in assuming the only threat is from local users? If so, currently all users are

Re: Is promiscuous mode bad?

2004-08-15 Thread Kevin D. Kinsey, DaleCo, S.P.
Aaron Dalton wrote: Thank you so much for your replies! This makes much more sense now. I am currently running Snort. I will examine its documentation to see if promiscuous mode is really necessary. It is. In the meantime, am I correct in assuming the only threat is from local users?

Re: Is promiscuous mode bad?

2004-08-15 Thread Remko Lodder
Aaron Dalton wrote: Thank you so much for your replies! This makes much more sense now. I am currently running Snort. I will examine its documentation to see if promiscuous mode is really necessary. In the meantime, am I correct in assuming the only threat is from local users? If so,

Re: Is promiscuous mode bad?

2004-08-15 Thread Bill Moran
Remko Lodder [EMAIL PROTECTED] wrote: Reminder for bill: sniffing via bpf requires the same privileges whether promisc. is set or not, so you always need to be root for sniffing data of the line, that is when the permissions is not tampered with :). Thanks #bsddocs (simon ;)) Really?

Re: Is promiscuous mode bad?

2004-08-15 Thread Kevin Stevens
On Aug 15, 2004, at 15:32, Bill Moran wrote: Remko Lodder [EMAIL PROTECTED] wrote: Reminder for bill: sniffing via bpf requires the same privileges whether promisc. is set or not, so you always need to be root for sniffing data of the line, that is when the permissions is not tampered with :).