Java

Java is a Object Oriantation Language.
Java has developed by James Gosling a wel known programer of c language.
I ll plan to give about my knowledge in java using this blog.. share it to all thank you!!!

Meaning of the Words.

Applet :- A Small Java Application that is downloaded by an ActiveX or Java enabled web browser. Once it has been downloaded, the applet will run on the user's Computer.Common applets include financial calculators and web drawing programs.


Application :- Computer software that performs a task to set of tasks, such as word proccessing or drawing.Applications are also refered to as programs.


ASCII :- American Standard Code For Information Intercharge, an encoding system for converting keyboard characters and instructions into the binary number code that the computer understands.


Bandwith :- The Capasity of a networked connetion.Bandwith determines how much data can be sent along the network wires.


Binary Code :- The most basic language a computer understands, it is composed of a series of 0s and 1s,The computer interprets the code from numbers ,letters,punctuation marks and symbols.


bit :- (Short for "binary digit"). The smallest piese of computer information, either the number 0 or 1 .


Boot :- To start up a computer.Cold boot-restarting computer after having turnned off the power. Warm boot- restarting computer without having turrned off the power.

To be Continued..

Allow PINGs through your Windows Vista Firewall

It is not possible to ping your windows vista computer from another computer while having your firewall enabled. Yes the most simplest and the most drastic solution is to disable the firewall. But there are better ways to get over it.

Enable ICMP Echo Request

Open an Administrative command prompt. This could be done by right clicking the cmd --> Run as Administrator OR in the search pain type cmd and Ctrl+Shift+Enter

Once you open it type the following to Enable ICMP Echo Request

netsh firewall set icmpsetting 8 enable

To disable ICMP Echo Request

netsh firewall set icmpsetting 8 disable

Hope this helped most of you out there wondering how to enable a ping request on your Windows Vista PC without having to disable the firewall

PROLINK H9601 Modem Driver Installation on Ubuntu

The reason for this post is, many folks who own a PROLINK H9601 modem has problems on getting to the internet through UBUNTU. My never ending search came to an end, the day I came across a post on a linux forum. Stated below is the extraction from it, which worked really fine and got me on the internet. The reason for me to put this extraction on this blog is to increase popularity of the resolution. The original POST could be found at this link

The linux driver for prolink h9601 is eciadsl(google it)
install it and the download the synch.bin achive which is also there and extract it to /etc/eciadsl/synch
use the following parameters to configure
using eciadsl-config-text command as root

VID1=0915
PID1=8102
VID2=0915
PID2=8102
MODE=LLC_SNAP_RFC1483_BRIDGED_ETH_NO_FCS
VCI=35
VPI=8
FIRMWARE=/etc/eciadsl/firmware00.bin
SYNCH=gs7470_synch20.bin
PPPD_USER=(username)
PPPD_PASSWD=
USE_DHCP=no
USE_STATICIP=no
STATICIP=
GATEWAY=
MODEM=Other
MODEM_CHIPSET=GS7470
SYNCH_ALTIFACE=0
PPPOECI_ALTIFACE=0
PROVIDER=Other
DNS1=203.115.0.46
DNS2=203.115.0.47

then to connect enter these commands as root eciadsl-start.keep entering this command until an error comes telling that a process called eciadsl-pppoeci is already running.

then type ifconfig and you must see something like this(without any rx packets):

tap0
Link encap:Ethernet HWaddr d6:ab:d9:99:f5:2e
inet6 addr: fe80::d4ab:d9ff:fe99:f52e/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:18395 errors:0 dropped:0 overruns:0 frame:0
TX packets:19493 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:500
RX bytes:17577091 (17.5 MB) TX bytes:2835186 (2.8 MB)

if you dont see something like this then try eciadsl-start again until you see it.
then after tap0 appears
enter the command pppoeconf tap0

then it will scan some stuff and press enter for all those stuff enter you username and password when asked.after you are done ,

connect by typing pppoe-start

happy surfing

Please Note
The text in BOLD are unique to every ISP. Please contact your ISP to find the details relevant to you.

Important Switches for Outlook

Many of us do a reinstall of MS Office when ever we encounter a problem in outlook. But have you ever thought of any possible fixes for the problems you face. I hope this post will help you a lot through making your life easier with Outlook. Below I have stated some of the most important switches that could be used for outlook in order to fix problems.

All commands could be typed on a run prompt, which could be opened by Start --> Run

1. "outlook.exe /cleanclientrules" ~ This command will start Outlook, but will deleted any rules you've made. This is very useful if you are having trouble with any rules you’ve already created.
2. "outlook.exe /cleanprofile" ~ This is a very handy command when you have corrupted profiles. This command removes invalid profile keys and creates default registry values as needed.
3. "outlook.exe /cleanpst" ~ This command will start outlook with a clean PST file.
4. "outlook.exe /cleanrules" ~ This command is similar as "/cleanclientrules", but the difference is this commands clean all client and server rules.
5. "outlook.exe /firstrun" ~ This command will start Outlook as if it was started for the first time on your computer.
6. "outlook.exe /noextensions" This command will start Outlook with no Extensions (Add-ins). But how ever it could be listed in the Add-in-Manager.
7. "outlook.exe" ~ This command will resets all folder names to their defaults. Ex-You could rename your "Inbox" to some other name. This could be reversed.
8. "outlook.exe /resetfolders" ~ This command will restore missing folders for the default delivery location.
9. "outlook.exe /resetnavpane" ~ This command will remove and recreate the entire navigation pane for the current profile.
10. "outlook.exe /safe" ~ This command will start Outlook in Safe Mode. It will run without 1) Extensions 2) Reading Pane 3) Toolbar customization.
11. "outlook.exe /safe:1" ~ Starts outlook with the reading pane off.
12. "outlook.exe /safe:2" ~ Starts outlook without checking email at startup.
13. "outlook.exe /safe:3" ~ Starts outlook with extension turned off.
14. "outlook.exe /safe:4" ~ Starts outlook without loading customized toolbars.
How ever for further details and more commands you could visit Microsoft Command-Line-Switches . Please feel free to leave your comments regarding this post. Wish you Good Luck with Microsoft Outlook.

Networks.

Most of the time, PC users work on their own with their PC connected to nothing more than a printer. However, it has always been possible to conect two Pcs with a peice of wire so thet they can communicate (transfer files & data). The connection between the computers is then managed & operated by some special software.

Local Area Network. (LAN)
Users can send massages and share files and resources such as scanners, printers etc.., easily if the computers are connected together. This idea has developed to Local area Networks (LANs) . Nowadays most organizations have a local area network.
Lan can be as small as just one shared office or as large as a whole city.

Wide Area Network.(WAN)
In some cases,an organization may spread over a large area & you do not have the easy concentration of computing to provide a LAN.
In this instance, the computers may be connected by a Wide Area Network (WAN). With Wan, the network will often be much slower & will usually involve some mainframe computer as the server rather than a PC.

What is the Internet.
The Internet is a vast system of computers that are "networked", or linked together, to exchange information. It is a network of networks. it is a shared global resource that is not owned or regulated by anyone.

The World Wide Web.(WWW)
The World Wide Web, also known as WWW, comprises a vast collection of documents stored in computers all over the world. These specialized computers are linked to form part of a world wide communication system called the internet. When you conduct a search, you direct your computer's browser to go to Web sites where documents are stored and retrieve the requested information to display on your screen.

The Internet.

The Internet is not about computers.It's about people, communication & sharing infotrmation. The Internet makes us realize how small the world we live in. It's a way of overoming physical boundraries like distances to allow monds to meet.
With the arrival of the Internet, world communication took a gaint leap. Having conversations with people across the globe have prospects of direct communication. Advanced vedio conferencing technology now makes it possible to have live visual contact with business associates & friends across continents. News papers are being delivered in eloectronic form, making it convenient for people to stay in touch & well informed , at their own leisure. Information about latest scenarios & political happenings all over the world can be accessed with the press of a button. Mailing lists & electtronic subscriptions ensure that the latest news in available, irrespective of the place where it oriented.
The world today depends & thrives on information. Information not being global is of little use. The Internet gives us the ability to access information at any place at any given time. The world is connected through networks made up of millions of computers. Each computer in turn stores vast amounts of information. Moreover, new information keeps getting added & updated.
So how does one actually make use of this database if information to find some thing specific? Knowing where to get what you want on the Internet will always be to your benifit. With out a proper idea of what you want, logging on on & searching for information on the Internet can be a very harrowing experience.

How To Remove Mahasona.exe

In this post my intention is to reviel the way I removed Mahasona.exe which I assume, is the easiest. Hope this will help the others as well.


1. Open Task Manager (Ctrl+Shift+Ecs)
2. Under the processes tab find explorar.exe not explorer.exe and 'End Task'
3. Run --> (type)C:\windows
4. Find a file named "autofrun.inf" and not "autorun.inf". It may be hidden. If so Tools-->Folder Options-->View--> (Check)"Show hidden files and folders" and also (Uncheck)"Hide protected Oparating system files"-->Apply-->OK. Now again look for "autofrun.inf" not "autorun.inf" and delete it.
5. Now go in to the "System32" folder in the same directory and find "explorar.exe" and not "explorer.exe" and delete it.

Now your PC is safe. If the above didn't work for you, boot the PC in safe mode(Keep hitting F8 when your PC start up and select safe mode.)

1. Run-->[type]cmd[ENTER]
2.type the following


cd/
cd windows
attrib -s -h -r -a autofrun.inf
del/f autofrun.inf
cd system32
attrib -s -h -r -a explorar.exe
del/f explorar.exe


then your done. If you are not sure with this also, just copy the above code and paste it on to a new notepad.





Save it as "mahasonaRemoval.bat" on your desktop.

Now just double click and it will fix the problem for you. Now reboot the PC as normal

To remove the virus prom your pen drive.

1. Hold the shift key when inserting the Pen drive to the PC

2. Then right click and Open OR Explore

3. Unhide all files mentioned as above and delete the autofrun.inf and any unknown *.exe

4. Now your pen drive is also safe.

Alternatively you could download third party S/W to help you through http://answers.yahoo.com/question/index?qid=20090726065303AApWPsI

Hope this post was informative to you.

Manually Reinstall Your Windows XP Operating System

1. Back up all data needed from the old Installation.
The Windows XP Files & Settings Transfer Wizard could be used.

2. Remove all non-assential pheripharals
Except for the monitor, keyboard, and mouse, remove all external peripherals including:


Scanner
Printer
Modem or Network cables
Personal Digital Assistant (PDA)
USB flash drive or other external Hard Drive
Any other external devices (e.g., USB-attached devices)
Remove the computer from the docking station, if you are using one.

3. Prepare your computer for reinstallation.

The Dell Operating System Reinstallation CD/DVD,
The Dell™ Reinstallation CD for Microsoft® Windows® XP,
The Dell™ Reinstallation DVD for Windows® Vista,
The Dell Resource CD/DVD,
Any application install disks,
Any software and/or documentation for your Internet service connection,
Any install discs for any external devices (such as a printer) and internal devices added to the computer after it was shipped by Dell.

4. Reinstall the operating system from the OS Setup Disk.

5. Install Dell drivers and utilities.

The drivers for your Dell computer can be installed from the ResourceCD/DVD or from the Dell Drivers and Downloads page.

Actual system configurations may vary. The list below is an overview of the correct order to install drivers on Dell desktop and laptop systems. After reinstalling the operating system, follow the order listed when reinstalling drivers. It is recommended that you print this list for referral when installing drivers

NOTE - Some devices may not work if they are not installed in the proper order, please use the list below and install the drivers in the proper order.

NOTE - To select the correct drivers, you need to know what components are installed on your computer. To find out what components are installed on your computer, refer to the Dell Knowledge Base Article: "How to Determine Which Components are in Your Computer" Article ID: 324898.

1) Desktop System Software (DSS) or Notebook System Software (NSS) - A vital utility that provides critical updates and patches for the operating system. If you are reinstalling the operating system or updating all the computer’s drivers, it is imperative that this software be installed first. Currently, the DSS and NSS are not required for systems with Windows Vista installed. This is located under the System and Configuration Utilities Category on the Drivers and Downloads page

2) Chipset - Helps Windows control system board components and controllers. This is located under the Chipset Category on the Drivers and Downloads page.

3) Video Adapter - Enhances video performance. This is located under the Video Adapter Category on the Drivers and Downloads page.

4) Network Interface Card (NIC) - Enhances the network controller for Internet or network access. This is located under the Network Category on the Drivers and Downloads page.
5) Audio Adapter - Enables and enhances the audio controller. This is located under the Audio Category on the Drivers and Downloads page.

6) Modem - Allows dialup capability. This is located under the Communication Category on the Drivers and Downloads page.

7) Wireless Network Card - Enables and enhances the wireless network controller. This is located under the Network Category on the Drivers and Downloads page.

8) Touchpad, Pointer, Trackstick, Mice, and Keyboards - Enhances the pointing device features. This is located under the Mouse & Keyboards Category on the Drivers and Downloads page.

9) Other Devices

a) Bluetooth® ModuleThis is located under the Communication Category on the Drivers and Downloads page.

b) Dell Wireless Mobile Broadband Cards This is located under the Communication Category on the Drivers and Downloads page.

c) PCMCIA/Smartcard controllerThis is located under the Security Category on the Drivers and Downloads page.

6. Connect your computer to the internet or network.

7. Install critical and recommended Windows Updates.

8. Install your applications.

9. Install your third-party hardware and software drivers.

10. Restore your personal files and data from backups

Setting Up a Network.

Checking IP Address Details

#ifconfig

This will define the IP address of one interface. If the PC has two NICs, then it could have two IPs. The Networl configuration file could be found in

#cd /etc/sysconfig/network-scripts

In this there are several files. "ifcfg-eth0" contains the Network Card information. The file looks as follows.

DEVICE = eth0 [This is the first NIC interface]
BOOTPROTO = [dhcp OR static ---> If it is DHCP the card will listen to a DHCP Server]
HWADDR = 00:06:5B:22:FS:8E [MAC Address]
ONBOOT = yes [For the Network to load at boot-up]
TYPE = Ethernet

To add a IP Address change the file as

BOOTPROTO = static
and add
IPADDR = 192.168.190.1[The IP you wish to assign]

Optionally you could perform the same thing by

#netconfig

OR

#ifconfig 192.168.190.1/24

After completing the Network Services should be restarted.

#service network restart

Once again if you check out the IP address you may see

#ifconfig

'etho' will have an IP Address
'l0' is for the Loop Back IP


Now you Computer has been set up for the network. Try to 'ping' another PC on the WORKGROUP. It should work.

Good Luck....!

Accessing NTFS Partitions From RHEL 4

By default RHEL 4 kernel supports READ and WRITE access for FAT partitions, while it does not does not support NTFS read or write access. So we have to upgrade the kernel by down loading and installing necessary kernel modules to the Linux System. It could be downloaded through http://www.linux-ntfs.org

For this you should first find the current Kernel version of your Linux Installation.
#uname -r [ENTER]

To see the Processor version
#uname -p [ENTER]

Now install the Downloaded package
#rpm -ihv kernel-ntfs-2.4.18-14.i686.rpm [ENTER]

Now you have to load the installed modules to the running kernel.
#modprobe ntfs [ENTER]

To create a mount point
# mkdir /media/Windows

Automatically mounting the Microsoft partitions when the System starts up.

To this you should edit a system file called 'fstab'. Find it and open it with 'vi'. In it we should and a new entry

/dev/hda1[tab][tab]/media/Windows[tab]ntfs[tab]defaults[tab]0[space]0

Save and EXIT.

Now mount the Partitions.
#mount /media/Windows

Purpose of Libraries in Linux

/bin
Binaries or executable files which are common Linux user commands.

/boot
Here you find potable files, boot loader and a compressed copy of the Linux Kernel.

/dev
This contains device drivers.

/etc
This contains administrative and system configuration files.

/home
This contains the home folder of normal Linux Users.

/initrd
The initial RPM drive location. Do not any data or delete this.

/lib
This contains all libraries, applications, extensions needed to run Linux executable.

/media
This contains mount points to access removable storage devices.

/opt
This contains optional S/W s. The location to install platform independent S/W s.

/proc

Running Linux Processors and current system information. When the system is shut down it automatically gets erased.

/root
The Privileged user's home folder

* root - Super User
* / - Top of the File System
* /root - Super Users Home Folder

/sbin
This contains administrative commands and files related to services.

/usr
This contains platform dependent applications

/var
This contains dynamic data related to Linux applications. Automatic updates, without the knowledge of the user.

Set up RedHat Version 4 From Scratch

Partitioning The Hard Drive

To install Linux you should have a minimum of 2 partitions. But as an optional you could also have 3 or more partitions.

• swap - Essential Partition This is like the Virtual Memory on Windows.
• root ('/') - Essential Partition This is where all the other partitions will list. This the most top of the USER file system(Linux has an Universal File System, not like Windows).
• boot ('/boot') - Optional Partition This will store the files which are needed for the OS to boot up in a separate partition.

Linux has an Universal Directory hierarchy and Windows has a Tree Directory hierarchy.