Spirituality & Technology drives the world!

Linux-vmwayer-error-The virtual machine is busy

2012-02-14T20:45:00.004+05:30

On vm start up: Guest system does not start - "The virtual machine is busy"

Solution for Ubuntu or Other Linux flavours

1. Check the permission of the folder and files and make sure you have permission to run the same.
2. Make sure the same virtual machine is not running already by another user ID or root.
3. Check the permission of the file /usr/lib/vmware/bin/vmware-vmx This file should have UID set.
You can do that by
sudo chmod u+s /usr/lib/vmware/bin/vmware-vmx

Can be VMWARE Workstation,vmplayer,vmware server,etc.

Airtel-3G-Vs-Tata Docomo-3G

2012-02-13T17:50:00.002+05:30

The following are the Internet speed test conducted for Airtel and Tata Docomo 3G connections..

The following is for Tata Docomo 3G.

The following test is for Airtel 3G

Results are from http://speakeasy.net/speedtest/

Note: Speed may vary depends on many technical factors.

Microsoft Store India-Hacked

2012-02-13T14:11:00.003+05:30

Indian Microsoft store got hacked !!

Ubuntu-use-full-CPU-Speed

2012-01-15T20:30:00.002+05:30

See all possible CPU speeds

#cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies

2267000 2266000 1600000 800000

Set the frequency for all CPU cores with the following command

#cpufreq-selector -c {0,1} -f 2267000

(Here I have dual core so gave {0,1})

How do I remove audio from a .ogv file via the command line

2011-12-14T12:33:00.002+05:30

Most of the time linux users record their desktop using recordmydesktop application.

The default file format of the same is OGV

The following command can be used to remove the audio from the file and convert the same to mpeg format ..

$ sudo apt-get install mencoder

mencoder inputfile.ogv -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=800 -nosound -o outputfile.mpeg

Income Tax India SPAM and Phishing

2011-12-13T13:12:00.011+05:30

Hi,

Few of my friends have received SPAM email claiming it is from Income Tax Dept India.

For your awareness the email and the phishing web site link is given below.

Email Content

Dear Valued Taxpayer,

We have reviewed your tax fiscal payment for previous years and have resolved that you are qualified for a refund of the sum of 36,120.25 INR which is your accumulated tax excesses. Please submit a tax refund request and allow us to process it within 12(twelve) working days.

To submit a request CLICK HERE

We appreciate taking the time to learn about our tax refund. It's one more way Income tax department can make your tax payment experience better.
Endeavor to fill in your Information correctly,to enable us make refund to your account without any delay.

Refund can be delayed for some reasons:

Applying after deadline of notification.
Submitting incorrect account information.

Tax Refund Department
Department of revenue,
Ministry of finance, India.

Phishing Site

This attack is accompanied by each Bank's phishing web site

The IP Address belongs to the following hosting provider

NetRange: 173.248.128.0 - 173.248.191.255

CIDR: 173.248.128.0/18

OriginAS: AS30475

NetName: NET-WEHOST-4

NetHandle: NET-173-248-128-0-1

Parent: NET-173-0-0-0-0

NetType: Direct Allocation

RegDate: 2010-05-13

Updated: 2011-05-02

Ref: http://whois.arin.net/rest/net/NET-173-248-128-0-1

OrgName: WeHostWebSites.com

OrgId: WEHOST-1

Address: 1801 California Street

Address: Suite 240

City: Denver

StateProv: CO

PostalCode: 80202

Country: US

RegDate: 2002-04-17

Updated: 2009-08-13

Ref: http://whois.arin.net/rest/org/WEHOST-1

There are around 37 web sites hosted in the same IP. Possibly one or more domain is hacked by the attacker and the same using for this phishing attacks

Attacker moved further after the hosting provider deleted the content.

He started using another Idle web page of a person

The domain Owner is not aware of this phishing links working out of there ?! ... Having his resume there to download !!!!

http://marufhasan.info/

SQL injection tools

2011-12-06T16:35:00.002+05:30

The following are few SQL injection tools (my ref.)

1. App Scan (Commercial Scanner)

2. Acunetix (Commercial Scanner)

3. SQLMap (Free)

4. Havij (Free and commercial)

5. TheMole (Free)

6. SQLninja (Free)

Linux TataDocomo3G

2011-12-05T11:14:00.004+05:30

The following are the help for general Linux dialup using tata docomo 3G estick..
This is tested on Ubuntu 10.04.03 with TATA DOCOMO 3G E-Stick make Huawai E177. But this works on all other GSM modems.. Any comments questions please post as a comment you will reply.

Easy way from command line

1. Install usb-modeswitch

Ubuntu/Debian based systems : - sudo apt-get install usb-modeswitch

Reboot your computer. Connect the USB Modem/ usb stick/MTS mblaze

2. Install wvdial
Ubuntu/Debian based systems : - sudo apt-get install wvdial

3. Go to Terminal

If U r a normal user with sudo permission run the following command

$sudo wvdialconf

This command will find your modem and will show something like follows

Editing `/etc/wvdial.conf'.

Scanning your serial ports for a modem.

Modem Port Scan<*1>: S0 S1 S2 S3
WvModem<*1>: Cannot get information for serial port.
ttyUSB_utps_diag<*1>: ATQ0 V1 E1 -- failed with 2400 baud, next try: 9600 baud
ttyUSB_utps_diag<*1>: ATQ0 V1 E1 -- failed with 9600 baud, next try: 9600 baud
ttyUSB_utps_diag<*1>: ATQ0 V1 E1 -- and failed too at 115200, giving up.
ttyUSB_utps_modem: Device or resource busy
Modem Port Scan<*1>: USB_utps_modem
WvModem<*1>: Cannot get information for serial port.
ttyUSB_utps_ndis<*1>: ATQ0 V1 E1 -- failed with 2400 baud, next try: 9600 baud
ttyUSB_utps_ndis<*1>: ATQ0 V1 E1 -- failed with 9600 baud, next try: 9600 baud
ttyUSB_utps_ndis<*1>: ATQ0 V1 E1 -- and failed too at 115200, giving up.
WvModem<*1>: Cannot get information for serial port.
ttyUSB_utps_pcui<*1>: ATQ0 V1 E1 -- OK
ttyUSB_utps_pcui<*1>: ATQ0 V1 E1 Z -- OK
ttyUSB_utps_pcui<*1>: ATQ0 V1 E1 S0=0 -- OK
ttyUSB_utps_pcui<*1>: ATQ0 V1 E1 S0=0 &C1 -- OK
ttyUSB_utps_pcui<*1>: ATQ0 V1 E1 S0=0 &C1 &D2 -- OK
ttyUSB_utps_pcui<*1>: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0 -- OK
ttyUSB_utps_pcui<*1>: Modem Identifier: ATI -- Manufacturer: huawei
ttyUSB_utps_pcui<*1>: Speed 9600: AT -- OK
ttyUSB_utps_pcui<*1>: Max speed is 9600; that should be safe.
ttyUSB_utps_pcui<*1>: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0 -- OK

Found a modem on /dev/ttyUSB_utps_pcui.
Modem configuration written to /etc/wvdial.conf.
ttyUSB_utps_pcui: Speed 9600; init "ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0"

By default TATA DOCOMO 3G E-Stick creates the following files under /dev/
ttyUSB_utps_diag ttyUSB_utps_modem ttyUSB_utps_ndis ttyUSB_utps_pcui

We can use /dev/ttyUSB_utps_modem also as modem in case U face any problem while dialing swap the modem name and check as the first step of troubleshooting...

4. Open /etc/wvdial.conf file for editing
The file should contain the following lines. Modem should be the detected modem by wvdialconf or /dev/ttyUSB_utps_modem

[Dialer Defaults]
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
Modem Type = USB Modem
Phone = *99#
ISDN = 0
Username = " "
Password = " "
Init1 = ATZ
Init3 = AT+CGDCONT=1,"IP","tatadocomo3g"
Modem = /dev/ttyUSB_utps_modem
Baud = 9600
Auto DNS = 1
Dial Command = ATDT
Carrier Check = yes
Stupid Mode = 1

Now your configuration file is ready. You have an option to save this file anywhere U like. But remember this file with location while dialing..

5. Now dial your connection by entering the following command

$sudo wvdial -C /etc/wvdial.conf

This will give you an output like the following which shows the IP address and DNS IPs.

--> WvDial: Internet dialer version 1.60
--> Cannot get information for serial port.
--> Initializing modem.
--> Sending: ATZ
OK
--> Sending: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
OK
--> Sending: AT+CGDCONT=1,"IP","tatadocomo3g"
AT+CGDCONT=1,"IP","tatadocomo3g"
OK
--> Modem initialized.
--> Sending: ATDT*99#
--> Waiting for carrier.
ATDT*99#
CONNECT
--> Carrier detected. Starting PPP immediately.
--> Starting pppd at Mon Dec 5 10:47:38 2011
--> Pid of pppd: 3223
--> Using interface ppp0
--> pppd: 04
--> pppd: 04
--> pppd: 04
--> pppd: 04
--> pppd: 04
--> pppd: 04
--> local IP address 49.249.126.228
--> pppd: 04
--> remote IP address 10.64.64.64
--> pppd: 04
--> primary DNS address 202.149.208.91
--> pppd: 04
--> secondary DNS address 202.149.208.92
--> pppd: 04

In case if you are using Mobile 3G You need to use APN instead of tatadocomo3g Use - > TATA.DOCOMO.INTERNET

This will work for all phone modems too...

Tips

Make sure you are running wvdialconf and wvdial as root user.

This method can be used for any GSM data cards like Airtel 3G, Vodafone 3G, Idea Net Setter,etc.

Linux MTS Mblaze

2011-12-05T11:00:00.006+05:30

Ubuntu/Linux how to configure MTS data cards

Easy way from command line

1. Install usb-modeswitch

Ubuntu/Debian based systems : - sudo apt-get install usb-modeswitch

Reboot your computer. Connect the USB Modem/ usb stick/MTS mblaze

2. Install wvdial
Ubuntu/Debian based systems : - sudo apt-get install wvdial

3. Go to Terminal

If U r a normal user with sudo permission run the following command

$sudo wvdialconf

This command will find your modem and will show something like follows

Editing `/etc/wvdial.conf'.

Scanning your serial ports for a modem.

Modem Port Scan<*1>: S0 S1 S2 S3
WvModem<*1>: Cannot get information for serial port.
ttyUSB0<*1>: ATQ0 V1 E1 -- OK
ttyUSB0<*1>: ATQ0 V1 E1 Z -- OK
ttyUSB0<*1>: ATQ0 V1 E1 S0=0 -- OK
ttyUSB0<*1>: ATQ0 V1 E1 S0=0 &C1 -- OK
ttyUSB0<*1>: ATQ0 V1 E1 S0=0 &C1 &D2 -- OK
ttyUSB0<*1>: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0 -- OK
ttyUSB0<*1>: Modem Identifier: ATI -- Manufacturer: QUALCOMM INCORPORATED
ttyUSB0<*1>: Speed 9600: AT -- OK
ttyUSB0<*1>: Max speed is 9600; that should be safe.
ttyUSB0<*1>: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0 -- OK
WvModem<*1>: Cannot get information for serial port.
ttyUSB1<*1>: ATQ0 V1 E1 -- failed with 2400 baud, next try: 9600 baud
ttyUSB1<*1>: ATQ0 V1 E1 -- failed with 9600 baud, next try: 9600 baud
ttyUSB1<*1>: ATQ0 V1 E1 -- and failed too at 115200, giving up.
WvModem<*1>: Cannot get information for serial port.
ttyUSB2<*1>: ATQ0 V1 E1 -- failed with 2400 baud, next try: 9600 baud
ttyUSB2<*1>: ATQ0 V1 E1 -- failed with 9600 baud, next try: 9600 baud
ttyUSB2<*1>: ATQ0 V1 E1 -- and failed too at 115200, giving up.
WvModem<*1>: Cannot get information for serial port.
ttyUSB4<*1>: ATQ0 V1 E1 -- failed with 2400 baud, next try: 9600 baud
ttyUSB4<*1>: ATQ0 V1 E1 -- failed with 9600 baud, next try: 9600 baud
ttyUSB4<*1>: ATQ0 V1 E1 -- and failed too at 115200, giving up.
WvModem<*1>: Cannot get information for serial port.
ttyUSB5<*1>: ATQ0 V1 E1 -- failed with 2400 baud, next try: 9600 baud
ttyUSB5<*1>: ATQ0 V1 E1 -- failed with 9600 baud, next try: 9600 baud
ttyUSB5<*1>: ATQ0 V1 E1 -- and failed too at 115200, giving up.

Found a modem on /dev/ttyUSB0.
Modem configuration written to /etc/wvdial.conf.
ttyUSB0: Speed 9600; init "ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0"

4. Open /etc/wvdial.conf file for editing
The file should contain the following lines. Modem should be the detected modem by wvdialconf

Dialer Defaults]
Init1 = ATZ
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
Modem Type = Analog Modem
Phone = #777
ISDN = 0
Username = internet@mtsindia.in
Password = mts
New PPPD = yes
Modem = /dev/ttyUSB0
Baud = 9600

Now your configuration file is ready. You have an option to save this file anywhere U like. But remember this file with location while dialing..

5. Now dial your connection by entering the following command

$sudo wvdial -C /etc/wvdial.conf

This will give you an output like the following which shows the IP address and DNS IPs.

--> WvDial: Internet dialer version 1.60
--> Cannot get information for serial port.
--> Initializing modem.
--> Sending: ATZ
ATZ
OK
--> Sending: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
OK
--> Modem initialized.
--> Sending: ATDT#777
--> Waiting for carrier.
ATDT#777
CONNECT 316800
--> Carrier detected. Waiting for prompt.
~[7f]}#@!}!}!} }/}"}&} } } } }#}%B#}%})h~
--> PPP negotiation detected.
--> Starting pppd at Mon Dec 5 10:51:50 2011
--> Pid of pppd: 3800
--> Using interface ppp0
--> pppd: p�� x�
--> pppd: p�� x�
--> pppd: p�� x�
--> pppd: p�� x�
--> pppd: p�� x�
--> local IP address 180.215.11.140
--> pppd: p�� x�
--> remote IP address 10.228.138.4
--> pppd: p�� x�
--> primary DNS address 10.228.129.113
--> pppd: p�� x�
--> secondary DNS address 10.228.129.114
--> pppd: p�� x�

Now your system is ready to access Internet. Depends on the signal availability the MTS will automatically switch to 1X and 3X networks.

post your questions as comments..

This can be used with any Linux version: - Debian, Fedora, Ubuntu, RedHat, Suse, Pardus, etc.

This is tested with ZTE CDMA USB modem on Ubuntu 10.04.03.

This method can be used for any CDMA like Reliance or TATA Photon.. by changing the user name and password in wvdial conf file

Linux-Share-Internet

2011-11-29T21:17:00.004+05:30

The following script can be used to quickly share an Internet connection through Wireless to other devices/computers.

In this script the Internet is connected through ppp0 (can be a dial-up, 3G,etc)

Depends on your main Internet connection network interface name will change. It could be eth0, eth1, etc.

And in the same way the Wi-Fi adapter name also will change depends on your system configuration...

**dnsmasq Package should be installed before invoking this script

Tips :-
ppp0 -> Internet connection
wlan0 -> Wi-Fi through this sharing happens
You can change essid-> adhocwifi -> to any text u like as Ur network name
and
key -> 1234567890 -> to any "strong password"

###################### Script Starts here ##############
#/bin/bash
sudo /etc/init.d/dnsmasq restart
sudo ifconfig wlan0 down
sudo iwconfig wlan0 mode ad-hoc
sudo iwconfig wlan0 essid adhocwifi
sudo iwconfig wlan0 key 1234567890
sudo ifconfig wlan0 192.168.0.1/24
sudo /etc/init.d/iptables stop
sudo iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE
sudo sh -c "echo 1 > /proc/sys/net/ipv4/ip_forward"

############## Script Ends here #######################

This can be saved in a file and give execute permission. Then whenever you want to share Internet just execute this script.

After you restart the system these settings will not exist. So you should take necessary steps for permanent sharing. That can be adding this script to your /etc/rc.local.

Enjoy....!

Linux Mount LVM

2011-11-24T18:05:00.005+05:30

Steps to follow to mount a LVM on Linux/Ubuntu/CentOS/Fedora/Debian/etc.

This can be performed by booting a liveCD to recover data from LVMs.

The following command will list your partitions

[root]# fdisk -l

$sudo fdisk -l

On debian based systems U need the the following package and on others same package with different name

$sudo apt-get install lvm2

After installing lvm2 package you will get few command to perform further actions

$sudo pvs

Will output something like following

PV VG Fmt Attr PSize PFree
/dev/hda2 VolGroup01 lvm2 a- 4.4G 2.35M

We got the Vol Group Name from this -> VolGroup01

Now lets Activate the Vol group

$sudo vgchange VolGroup00 -a y

OR as root user

#vgchange VolGroup00 -a y

$sudo lvdisplay VolGroup01

$sudo lvdisplay

This will display logical volumes under VolGroup01

We need Logical Volume of the required partition from the above out put .

In our case we will take example as LogVol00

So we have our required inputs

VOL GROUP NAME: VolGroup00

Logical Group Name: LogVol00

Lets mount the partition to get our data

$sudo mount /dev/VolGroup00/LogVol00 /mnt

Ubuntu-to-Windows-Ad-Hoc-Internet-Sharing

2011-11-21T20:13:00.004+05:30

The following is the easiest ever found solution for Sharing the internet connection from a ubuntu system to a Windows XP system

The main part of the configuration is in Linux/Ubuntu. Finding a network and configuring the same through Wi-Fi is known to every one.

***This configuration is for a normal user who is not using IPTABLES firewall.

The Wi-Fi card name is considered as wlan0 (this may change depends on your system -can be be something eth0, eth1, eth2,ethN)

wlan0 is the name of the Wi-Fi card

adhocwifi is the SSID -> U r free to use any name.

1234567890 -> is the encryption Key-something like a password- U r free to use your own Key.

ppp0 -> The connection is a dial-up through data card-3G.

##Before proceeding you need to have a package installed (dnsmasq) This is to sent the client DNS requests to the Internet DNS server.

$sudo apt-get install dnsmasq

$sudo ifconfig wlan0 down

$sudo iwconfig wlan0 essid adhocwifi

$sudo iwconfig wlan0 key 1234567890

$sudo ifconfig wlan0 192.168.0.1/24

##Make Sure Ur Linux firewall is stopped.

$sudo /etc/init.d/iptables stop

##Make sure the DNSMASQ is running

$sudo /etc/init.d/dnsmasq restart

##Enabling routing through iptables

$sudo iptables -t nat -D POSTROUTING -o ppp0 -j MASQUERADE

##Enable packet forwarding

$sudo sh -c "echo 1 > /proc/sys/net/ipv4/ip_forward"

Now Go to your Windows Box and search for networks and connect with the Key. Go to Wi-fi card properties and configure IP -> 192.168.0.2/255.255.255.0 and GW 192.168.0.1

And preferred DNS (Ur ISP DNS Server or any)

Now start using the same internet connection on multiple systems.. enjoy .. post your questions in comments section...

Ubuntu Mac Theme

2011-11-08T13:50:00.003+05:30

Just tried Apple Mac them on Ubuntu 10.04

Looks cool

Three of most used themes tested and the best one of my choice is macubuntu

Web site :- http://macbuntu.sourceforge.net/

Download

http://sourceforge.net/projects/macbuntu/

Downloaded the following file

Macbuntu-10.04.tar.gz

extracted

RUN install.sh as a normal user (NOT AS ROOT)

./install.sh

Answer most of the questions with default.

ubuntu-NetworkManager-0.90

2011-11-03T09:55:00.003+05:30

Ubuntu install Network Manager 0.9 (Latest version- Nov-2011)

Compiling from source requires many package dependability .. few of them are following

Errors/dependency during compilation

Wireless tools or libiw is not installed or older version

Your intltool is too old. You need intltool 0.40.0 or later

configure: error: Package requirements (dbus-1 >= 1.1 dbus-glib-1 >= 0.75) were not met:

No package 'dbus-1' found

configure: error: Package requirements (nss >= 3.11) were not met:

configure: error: couldn't find pppd.h. pppd development headers are required.

apt-get install wireless-tools

apt-get install libiw-dev

apt-get install libpackagekit-glib2-12

apt-get install libdbus-glib-1-dev

apt-get install libgudev-1.0-dev

apt-get install libnl-dev

apt-get install uuid-dev

apt-get install uuid

apt-get install nss

apt-get install libnss-db

apt-get install libnss3-dev

apt-get install ppp-dev

./configure

make

sudo make install

Backtrack 5 on Ubuntu

2011-10-28T15:58:00.003+05:30

Add the following lines to /etc/apt/sources.apt

deb http://all.repository.backtrack-linux.org revolution main microverse non-free testing

deb http://32.repository.backtrack-linux.org revolution main microverse non-free testing

deb http://source.repository.backtrack-linux.org revolution main microverse non-free testing

Add the GPG Key

wget -q http://all.repository.backtrack-linux.org/backtrack.gpg -O- | sudo apt-key add -

then run

sudo apt-get update

Install BT tools

Ex: sudo apt-get install cisco-torch