Network Packet Generator

Use Colasoft Packet generator to create ICMP packet:


npg ascii file to generate ICMP Address Mask
npg ascii file to generate ICMP Echo to google
Use the input from Colosoft packet generator tool to create "ngp ascii packet" packet.txt

npg -vvv -f packet.txt

OR

Get the linux code to send raw 802.3 packet "rawpacket.c".

gcc rawpacket.c -o rawpacket
./rawpacket

Reference:
http://www.wikistc.org/wiki/Network_packet_generator
http://www.colasoft.com/download/products/download_packet_builder.php
Npg1.3.0.zip

Install Canon ZoomBrowser with out CD

Download latest ZoomBrowser EX 6.5.1
update registry by creating following folders

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Canon\EOS Utility]
[HKEY_LOCAL_MACHINE\SOFTWARE\Canon\DPP]
[HKEY_LOCAL_MACHINE\SOFTWARE\Canon\ZoomBrowser EX\Install]
[HKEY_LOCAL_MACHINE\SOFTWARE\Canon\PhotoStitch
[HKEY_LOCAL_MACHINE\SOFTWARE\Canon\EOS Capture]
[HKEY_LOCAL_MACHINE\SOFTWARE\Canon\EOSViewerUtility]

Install latest ZoomBrowser EX

Reference:
http://www.northlight-images.co.uk/article_pages/install_canon_software.html

howto create bootable CDROM in linux - 2

Please refer howto create bootable CDROM in linux - 1.

download latest nasm from here.

tar xzvf nasm-2.08.02.tar.gz
cd nasm-2.08.02
./configure && make && make install
/usr/local/bin/nasm got installed

download latest syslinux from here.

tar xzvf syslinux-4.02.tar.gz
cd syslinux-4.02
make && make install
/usr/share/syslinux/isolinux.bin got installed

Install glibc-static from here.
Download BusyBox from here.
Download BusyBox config file from here.

tar xjbf busybox-1.17.1.tar.bz2
cd busybox-1.17.1
cp initrd.config .config
make && make install
_install/* got installed

create initrd:

dd if=/dev/zero of=initrd-new.img bs=1k count=4096
mke2fs -F initrd-new.img
mkdir -p initrd 
mount initrd-new.img initrd -o loop

cd initrd
cp -a ../busybox-1.17.1/_install/* .
mkdir -p bin lib dev etc/init.d mnt proc root sbin sys
cat > etc/inittab << EOF
# This is run first except when booting in single-user mode.
::sysinit:/etc/init.d/rcS

# Start an "askfirst" shell on the console (whatever that may be)
::askfirst:/bin/sh

# Stuff to do when restarting the init process
::restart:/sbin/init

# Stuff to do before rebooting
::ctrlaltdel:/sbin/reboot
::shutdown:/bin/umount -a -r
::shutdown:/sbin/swapoff -a
EOF

cat > etc/fstab << EOF
sysfs     /sys       sysfs   defaults 0 0
proc      /proc      proc    defaults 0 0
/dev/sr0  /mnt/cdrom iso9660 defaults 0 0
EOF

cat > etc/init.d/rcS << EOF
#!/bin/sh

mkdir -p /proc /sys /dev/pts /mnt/cdrom 
/bin/mount -t proc proc /proc
/bin/mount -t sysfs sysfs /sys
/sbin/mdev -s 2>/dev/null
/bin/mount -a
mount -t devpts devpts /dev/pts
ln -sf /proc/mounts /etc/mtab

echo "Welcome to busybox powered linux ..."
EOF
chmod +x etc/init.d/rcS

mknod dev/ram0 b 1 0
mknod dev/null c 1 3
mknod dev/tty c 5 0
mknod dev/console c 5 1
mknod dev/tty0 c 4 0
mknod dev/tty1 c 4 1
cd ..
umount initrd
gzip -9 initrd-new.img
mv -f initrd-new.img.gz initrd.img

download linux 2.6.35 config file from here.
create bootable iso image with linux kernel and initrd.img:

yum install genisoimage
cp initrd.img .
cp config.35 .config
make oldconfig
make isoimage FDARGS="root=/dev/ram0 rw" FDINITRD=initrd.img
cp arch/x86/boot/image.iso bootcd.iso

Reference:
http://syslinux.zytor.com/wiki/index.php/Download
http://www.clusters.umaine.edu/wiki/index.php/Building_a_Minimal_Linux_Image

How to check whether the OS installed is 32-bit or 64-bit

Method 1

1. Click Start, then click on Run or Start Search.
2. Type msinfo32.exe and then press Enter key.
3. In “System Information”, review the value for the System Type item:
   * For 32-bit editions of Windows, the value of the System Type item
     is x86-based PC.
   * For 64-bit editions of Windows, the value of the System Type item 
     is x64-based PC.

Method 2

1. Click Start, click Run, type sysdm.cpl, and then click OK.
2. Click the General tab. The operating system appears as follows:
   * For a 64-bit version operating system: Microsoft Windows XP 
     Professional x64 Edition Version <Year> appears under System.
   * For a 32-bit version operating system: Microsoft Windows XP 
     Professional Version <Year> appears under System.

Method 3

1. Click Start, click Run, type winmsd.exe, and then click OK.
2. In the details pane, locate Processor under Item. Note the value.
   * If the value that corresponds to Processor starts with x86, 
     the computer is running a 32-bit version of the Windows operating system.
   * If the value that corresponds to Processor starts with ia64 or AMD64, 
     the computer is running a 64-bit version of the Windows operating system.

reference:
how to check if windows xp system is 32 bit or 64 bit