Cant Put Network Card into Promiscious Mode

[lumpie]

I want to monitor network traffic with ntop from a Lucid 10.04 machine. Both NICs have picked up an IP address, I need to put one in promiscuous mode. I typed sudo ifconfig eth1 promisc and the response was SIOCSIFFLAGS: Permission denied.

I also tried sudo su ifconfig eth1 promisc
[sudo] password for user1: I put it in
Unknown id: ifconfig

Sure would love to fix this, thanks.

[theNbomr]

how about

sudo /sbin/ifconfig ......

--- rod.

[lumpie]

That worked, thanks. And subsequent to that, just sudo does it. What does that command mean?

[theNbomr]

/sbin is the directory in which ifconfig lives. That directory is normally in the $PATH for user root, but not for everyone else. Same logic applies for anything else in /sbin, such as fdisk, or route, or modprobe or a lot of other commonly used utilities.
--- rod.