whoami i wrote:
HI,
This is my first mail to this mailing list.I want to block external
usb storage completly on my server running on centos 5 having
confidiential data.
For that i used udev and blocked the external usb storage by creating
the udev rule mentioning any usb storage will get mounted to
/dev/null so that users cant mount as well.
But in the mean time i am getting below logs in my /var/log/messages
file when i insert any usb storage device.
######################################################
May 23 12:24:02 localhost kernel: usb 1-4: new high speed USB device
using ehci_hcd and address 4
May 23 12:24:02 localhost kernel: usb 1-4: configuration #1 chosen
from 1 choice
May 23 12:24:02 localhost kernel: scsi3 : SCSI emulation for USB Mass
Storage devices
May 23 12:24:07 localhost kernel: scsi 3:0:0:0: Direct-Access
USB Flash Disk 1100 PQ: 0 ANSI: 0 CCS
May 23 12:24:07 localhost kernel: sd 3:0:0:0: [sdb] 1981440 512-byte
hardware sectors (1014 MB)
May 23 12:24:07 localhost kernel: sd 3:0:0:0: [sdb] Write Protect is off
May 23 12:24:07 localhost kernel: sd 3:0:0:0: [sdb] Assuming drive
cache: write through
May 23 12:24:07 localhost kernel: sd 3:0:0:0: [sdb] 1981440 512-byte
hardware sectors (1014 MB)
May 23 12:24:07 localhost kernel: sd 3:0:0:0: [sdb] Write Protect is off
May 23 12:24:07 localhost kernel: sd 3:0:0:0: [sdb] Assuming drive
cache: write through
May 23 12:24:07 localhost kernel: sdb: sdb1
May 23 12:24:07 localhost kernel: sd 3:0:0:0: [sdb] Attached SCSI
removable disk
May 23 12:24:07 localhost kernel: sd 3:0:0:0: Attached scsi generic
sg2 type 0
##############################################
I want to know how device name sdb1[see above log] was allocated
and is it possible to block the device node creation,if so wht i can
do to block the same in my messages log.
Regards
lingu
------------------------------------------------------------------------
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Why do you want to block? Why not rather disallow users to use the mount
command altogether? If it's a server, why do you have normal users
accessing it?
--
Kind Regards
Rudi Ahlers
CEO, SoftDux
Web: http://www.SoftDux.com
Check out my technical blog, http://blog.softdux.com for Linux or other technical stuff, or visit http://www.WebHostingTalk.co.za for Web Hosting stuff
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