My system startup-file - /sbin/init.d/hpbase100 - has the following entry ####################################### C_MAJOR=$(/usr/sbin/lsdev -h -d btlan3 | awk '{print $1}')
if [ -a /dev/lan0 ]; then LAN0_MAJOR=$(/bin/ll /dev/lan0 |awk '{print $5}')
if [ $C_MAJOR -ne $LAN0_MAJOR ]; then /bin/rm /dev/lan0 fi fi
if [ ! -a /dev/lan0 ]; then
/sbin/mknod /dev/lan0 c $C_MAJOR 0x000000 /usr/bin/chmod 0666 /dev/lan0 fi
if [ -a /dev/ether0 ]; then ETHER_MAJOR=$(/bin/ll /dev/ether0 |awk '{print $5}')
if [ $C_MAJOR -ne $ETHER_MAJOR ]; then /bin/rm /dev/ether0 fi fi
if [ ! -a /dev/ether0 ]; then
/sbin/mknod /dev/ether0 c $C_MAJOR 0x000001 /usr/bin/chmod 0666 /dev/ether0 fi ##########################################
My /dev/ether0 has the permission 0666.
Is this permission really required ? Will it not cause some security issues ?
I checked my machine, it is the same permissions, although they have "w" permission which maybe is a security hole, I don't suggest you change them, just leave them there.
I noticed all of ours has permission set to .. crw-r--r-- bin:bin for both ether0,ether1,lan0 and I couldn't find any chmod statement in the startup file. I'm suspecting your startup file has the chmod line purposely added to it. Under normal circumstances there shouldn't be a need for the permission to be world-writable.
Even we have the same permissions and I am attaching a copy og hpbase100 so that you can cross check it ,there is definaltely a security concern as I am also thinking now on the same lines.
Even we have the same permissions and I am attaching a copy og hpbase100 so that you can cross check it ,there is definaltely a security concern as I am also thinking now on the same lines.
I've checked my N4000 running 11.0, my K570 running 11.0, and my C3000 running 11i. They all have the exactly the same permissions as yours. I would leave them alone.
