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Archive for February, 2009

Virtual Keyboard Interface For Firefox To Thwart Keyloggers

February 25, 2009 Leave a comment

http://techie-buzz.com/online-security/firefox-virtual-keyboard-interface.html

Keyloggers are a very harmful malicious scripts, that capture keystrokes and spy on your private data and passwords. These programs maliciously install themselves, and run without the users being aware about it, making it a huge security threat.

There are several methods to thwart keyloggers and many banks do provide users with a virtual keyboard facility using which they can enter their secure passwords.

Related: KeyScrambler: Firefox add-on to avoid Key Loggers

However many email sites and other websites which ask you to login before accessing the service, do not have such features in place. But if you are a Firefox user, you can run a Greasemonkey script called Virtual Keyboard Interface, which will provide users with a virtual keyboard to fill in text fields, password fields or text areas.

firefox_virtual_keyboard

Once you have installed the Greasemonkey script, double click on any text or password field to display the virtual keyboard, use the keyboard to type in your data and thwart keyloggers.

You will require the Greasemonkey Firefox Extension before you can use Virtual Keyboard Interface, you can download it from here.

Download Virtual Keyboard Interface

Categories: Firefox

Change your Network Card MAC Address on Ubuntu

February 10, 2009 Leave a comment

Change your Network Card MAC Address on Ubuntu

Media Access Control address, a hardware address that uniquely identifies each node of a network. In IEEE 802 networks, the Data Link Control (DLC) layer of the OSI Reference Model is divided into two sublayers: the Logical Link Control (LLC) layer and the Media Access Control (MAC) layer. The MAC layer interfaces directly with the network medium.Consequently, each different type of network medium requires a different MAC layer. On networks that do not conform to the IEEE 802 standards but do conform to the OSI Reference Model, the node address is called the Data Link Control (DLC) address.

If you want to change your network card mac address you need to use simple utility called mac changer.MAC changer is a utility for manipulating the MAC address of network interfaces

Possible usages

You’re in a DHCP network with some kind of IP-based restriction

You’ve a cluster that boot with BOOTP and you want to have a clean set of MACs

Debug MAC based routes

MAC Changer Features

Set specific MAC address of a network interface

Set the MAC randomly

Set a MAC of another vendor

Set another MAC of the same vendor

Set a MAC of the same kind (eg: wireless card)

Display a vendor MAC list (today, 6800 items) to choose from

Install MAC Changer in Ubuntusudo apt-get install macchanger

This will complete the installation.

If you Find your MAC address using the following command

ifconfig

eth0 Link encap:Ethernet HWaddr 00:0C:29:A8:D0:FA
inet addr:172.20.22.35 Bcast:172.20.22.255 Mask:255.255.255.0
inet6 addr: fe80::20c:29ff:fea8:d0fa/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:7690 errors:0 dropped:0 overruns:0 frame:0
TX packets:6399 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:4284579 (4.0 MiB) TX bytes:876317 (855.7 KiB)
Interrupt:177 Base address:0×1080

In the above example MAC Address is 00:0C:29:A8:D0:FA

If you want to configure MAC Changer you need to stop the networking services using the following command

For Ubuntu Userssudo /etc/init.d/networking stop

Now you need to configure your MAC address using the following examples

MAC Changer Syntax

macchanger [options] device

Examples

macchanger eth1

Current MAC: 00:09:a5:eb:23:f7 (Hansung Eletronic Industries Development Co., Ltd)
Faked MAC: 00:09:a5:eb:23:f8 (Hansung Eletronic Industries Development Co., Ltd)

macchanger –endding eth1

Current MAC: 00:09:a5:eb:23:f8 (Hansung Eletronic Industries Development Co., Ltd)
Faked MAC: 00:09:a5:6f:31:23 (Hansung Eletronic Industries Development Co., Ltd)

macchanger –another eth1

Current MAC: 00:09:a5:6f:31:23 (Hansung Eletronic Industries Development Co., Ltd)
Faked MAC: 00:11:18:5b:3a:1f (Blx Ic Design Corp., Ltd.)

macchanger -A eth1

Current MAC: 00:06:5b:f6:f3:48 (Dell Computer Corp.)
Faked MAC: 00:0d:11:93:0c:4f (Dentsply – Gendex)

macchanger -r eth1

Current MAC: 00:0d:11:93:0c:4f (Dentsply – Gendex)
Faked MAC: 3c:f1:89:f9:1f:ce (unknown)

macchanger –mac=01:23:45:67:89:AB eth1

Current MAC: 00:40:96:43:87:65 [wireless] (Cisco/Aironet 4800/340)
Faked MAC: 01:23:45:67:89:ab (unknown)

./macchanger –list=Cray

Misc MACs:
Num MAC Vendor
— — ——
065 – 00:00:7d – Cray Research Superservers,Inc
068 – 00:00:80 – Cray Communications (formerly Dowty Network Services)
317 – 00:40:a6 – Cray Research Inc.

Here is the list of available options for MAC Changer

-h, -help

Show summary of options.

-V, -version

Show version of program.

-e, -endding

Don’t change the vendor bytes.

-a, -another

Set random vendor MAC of the same kind.

-A Set random vendor MAC of any kind.

-r, -random

Set fully random MAC.

-l, -list[=keyword]

Print known vendors (with keyword in the vendor’s description string)

-m, –mac XX:XX:XX:XX:XX:XX

Set the MAC XX:XX:XX:XX:XX:XX

If you completed the your MAC address changes you need to start the networking service using the following command

For Ubuntu Userssudo /etc/init.d/networking start

Kubuntu HP 6730s Audio Problem

February 10, 2009 Leave a comment

add this line at the end of the file /etc/modprobe.d/options

options snd-hda-intel model=laptop enable=1 index=0