Disabling usb storage on centos 5

whoami i hicheerup at gmail.com
Fri May 23 00:08:25 PDT 2008


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 log 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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