How To Boot Ubuntu From A USB Flash Drive

 How To Boot Ubuntu From A USB Flash Drive

Below are the three methods, that can be adopted to boot Ubuntu OS from a USB Flash Drive!

Option 1: Boot Ubuntu as a Live CD from a USB Flash Drive

Use this option to install Ubuntu as a Live Install, which allows you to boot from the USB flash drive in Ubuntu, experience the Linux environment but will not retain any changes or settings after you shut down. This is a great way to get a feel for the OS, test some of it's capabilities as well as typical hardware compatibility.

Programs you may need to download:

1. Ubuntu 10.04 Live CD ISO is available at ubuntu.com.
2. Universal USB Installer available at pendrivelinux.com.

What you will need:

1. Computer Running Windows XP/Vista/7.
2. Fat32 Formatted USB 2.0 Flash Drive, at least 1GB.
3. PC with a Bios that can boot from USB.

Now with all of the necessary components in place, we can begin to set up our Ubuntu Live USB Drive,

1. Run the Universal USB Installer by Pendrivelinux.com that you downloaded earlier.
2. Choose Ubuntu 9.10/10.04.1 Desktop i386.
3. Select the Ubuntu Live CD that you downloaded earlier.
4. Choose your Flash Drive.
5. In this instance, we are going to leave the persistence option unchecked.

This can take anywhere from 15 minutes to 30 minutes depending on the speed of your system. At one point the progress bar will freeze until it is done, and this is the lengthiest wait of the process.

Once complete, you can reboot your computer with the USB flash drive in the USB port, press F12 for the Boot Menu and choose the removable media to boot from and you are in.

As this is a Live USB, any changes you make to the Ubuntu environment will not persist through a reboot. This is because running in this mode, Ubuntu uses available RAM in place of Swap and Hard Disk space. This option also contains the install files needed to install Ubuntu directly to your desktop if you should so desire.


Option 2: Boot Ubuntu as a Live CD with Persistence from a USB Flash Drive

This option will install Ubuntu Linux onto your flash drive with an area for persistent storage. You will be able to restart the computer, boot back into the Linux environment and all settings or changes made previously will persist.

Note: This option is particularly hard on Flash Memory, as there can be quite a bit of reading and writing to the Flash Memory.

What you will need:

1. Computer Running Windows XP/Vista/7.
2. Fat32 Formatted USB 2.0 Flash Drive, at least 2GB.
3. PC with a Bios that can boot from USB.

Now with all of the necessary components in place, we can begin to set up our Ubuntu Live USB Drive,

1. Run the Universal USB Installer by Pendrivelinux.com that you downloaded earlier.
2. Choose Ubuntu 9.10/10.04.1 Desktop i386.
3. Select the Ubuntu Live CD that you downloaded earlier.
4. Choose your Flash Drive.
5. Select the Persistence Option of 1GB Casper-RW.

This can take anywhere from 15 minutes to 30 minutes depending on the speed of your system. At one point the progress bar will freeze until it is done, and this is the lengthiest wait of the process.

Once complete, you can reboot your computer with the USB flash drive in the USB port, press F12 for the Boot Menu and choose the removable media to boot from and you are in.

As this is a Live USB with Persistence, any changes you make to the Ubuntu environment will keep through a reboot. This option also contains the install files needed to install Ubuntu directly to your desktop if you should so desire.


Option 3: Install Ubuntu directly to a USB flash drive

This option works by installing Ubuntu to the flash drive like a complete installation. It does not retain the installation files to install on another system. This will allow you to use Ubuntu exactly as if it were installed alone on the hard disk. You can boot from it with any computer that can boot from a USB flash drive.

Note: This method requires that you disable your hard drive in BIOS to prevent overwriting your current operating system and force the install onto the USB drive.

What you will need:

1. USB 2.0 Flash Drive, at least 4GB.
2. PC with a BIOS that can boot from USB.
3. Blank CD.
4. A Computer with the ability to Burn CD/DVD.

Now with all of the necessary components in place, we can begin the process,

1. First, you will need to burn your Ubuntu ISO to CD using a program like ImgBurn available at ImgBurn.com.
2. Boot your computer and press F2 to enter the system BIOS. Within here you will want to disable your Hard Drive. If this is not an option in your BIOS, I would suggest shutting down your computer and unplugging the power and data cables from your hard drive before proceeding. Note: If you choose not to disable your hard drive, you run the risk of installing Ubuntu on top of your current OS and can lose valuable information.
3. After you have disabled your hard drive, place the Ubuntu Live CD into your computer and boot from this.
4. At the initial boot screen, choose to try Ubuntu, not install.
5. Once Ubuntu loads, plug in the desired flash drive into the computer.
6. Now, double click on the Install Ubuntu icon that appears on the desktop.
7. The first 3 screens are language, time zone, and keyboard layout.
8. Now Ubuntu will notify you that there is a disk mounted, and asks to unmount it. This is your flash drive. Give it permission to unmount.
9. This is the prepare disk space screen. I chose to leave mine at default and let the installer handle the partitions needed by Linux.
10. Now you will see the login and user information screen.
11. Now you are ready to install, click install.
12. At one point during the installation, you may notice a skip button appear on the bottom left. This is to skip the auto-update, and finally the language packs. I chose to skip the language packs update.
13. This may take a while, mine took about 35 minutes to complete. When it is done, eject the disk and shut down the computer. Plug your hard drive back in if necessary, or boot your computer into bios and re-enable it. Reboot your computer and press F12 to enter the boot menu, choose the flash drive and boot into Ubuntu.

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How to Hack Any Computer | Pc | Laptop by IP Address ( Easy Steps Tutorial )

Here we post method to hack any computer or pc by their IP address. For getting the IP address of the victim’s computer we also post how to get the victim’s IP address online. By IP address, you can access their full computer system, their all files and folders, photos, videos and any other files stored in their hard disk by our little and easy tutorials. You can check more tutorials

Many times we need urgently to hack the computer system of our friends or relatives for some fun. So here is the full method of how to get their IP and using this IP how to hack their computer system or check more hacking tricks

Requirements to hack computer

1. First of all fresh mind
2. Victim’s Ip Address ( Method is posted below )
3. Some software ( Download links available )
4. Internet requires

How to get the IP address of any computer

These are very tough steps to get the IP of a victim’s computer. Because by getting the IP address we can hack their system in minutes. Here we posted social media chatting method to get their IP ( Facebook)

1. First of All Chat via Facebook to victim’s ( Just send message to them and wait for single reply )
2. After getting a reply ( Important your friend is online on Facebook )
3. Open CMD by (Windows+R Then type CMD )
4. Paste This Command netstat -a ( By this command you see many tips)
5. Note all the IP address
6. Then Go to Ip tracer
7. Check one by one IP address in the map and find correct IP
8. Done! You get up of your friend's system by chat

How to hack computer by IP address

After getting IP address very steps left for access your friends pc computer system

• Scan open ports of this IP address which you get above.

1.  How to scan open ports in the network

Here is all steps to scan open ports in your network

1. Firstly Download Nmap software for scan ports
2. Install and open zenmap on windows
3. Fill target host (which you want to scan)
4. Select scan type (Intense scan , regular, ping scan, trace rout, udp scan etc.).
5. Click on scan
6. Wait till scan is completed.
7. Thats it, Scanning Done.
8. If any ports is open you see it

• It will list you all Opened Ports of the Victim’s PC or computer. (e.g : Port 53 )
• After getting open ports of IP.
• Open Cmd and Type this command telnet [IP ADDRESS] [PORT] e.g : telnet 101.23.53.70 53
• Now you will be asked to Enter Login Information, Just type Username and Password and hit Enter.
  If no password is used just type the Username of their pc or computer
• Done! You access their pc

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COMPUTER SECURITY TIPS TO PROTECT YOUR SYSTEM INFORMATION

We hear a lots and lots of concerning cases of hacking, softwares, malwares, viruses, etc, Here are some Computer Security tips to safeguard your PC/laptop against hacker intrusions, malware and different viruses that exploits your PC or Laptops.

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6 COMPUTER SECURITY TIPS

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1) USE A FIREWALL

A firewall is a software system that will handle outgoing and incoming Internet connections of your computer. You’ll be able to clearly use the one engineered into Windows by default, however this can be by no means the foremost Efficient. i will like to recommend Comodo Firewall which is free and straightforward to use. Using Firewall is just one of Computer Security tip that i want to mention

2) USE ANTIVIRUS

There are obvious reasons to use Anti virus Programs, but there are People that don’t have any antivirus or those who have, they have not upgraded thier antivirus since their permit has lapsed.. However there are quite powerful free antivirus Available. One must Install Antivirus to Protect and Keep thier Computer Secure

3) UPDATING SOFTWARE SYSTEM:

New vulnerabilities are found in software system or operative systems like Windows each day. So one must always updates thier software system. Keeping your installed Softwares upto date is Important, as it will Keep hackers away from breaking into your System and its Said that any upto date program Works smooth without any glitch.

4) USE COMPLICATED PASSWORDS

Users like you and me use too weak  passwords that are very simple to detect for hackers, there are so many software which will try all Possible Combinations to Crack your Password, this is known as Bruteforce technique .  If your secret word(password) Consists of just 4 or 5 characters, it will easily discover it.

Your Password becomes harder to crack if it consists of 8 or 9 characters which also includes numbers, letters and special characters.To check the strength of your Password, there are plenty tools over internet. This is an important Computer Security tip that everyone must Consider.

5) USE TOTALLY DIFFERENT PASSWORDS

Most common mistake people make is that they use same password everywhere over internet. Yes, its very hard to remember passwords for all accounts but its highly advisible to have different passwords for different accounts.

This Practice Comes handy if one of your account gets Compromised/Hacked, then your other accounts are still safe.

6) ALWAYS BEWARE:

• Finally, Abstain from getting hacked,  Always beware while Browsing Internet, don’t transfer and install everything and anything on your PC or Laptop.

• Always check the sources of software system and websites that you just use to download programs.

• Don’t be silly and amateur hackers won’t be able to do  anything to you (while serious and skilled hackers will not have any interest to hack you)

Do you have any Computer Security tip that you will like to share ? Feel free to comment below.

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HOW TO PROTECT WI-FI NETWORK FROM HACKERS

Do you use a wireless network like Wi-Fi at your home or office? And afraid of it getting hacked by other people (hackers)? Now a day hacking has become key stress or tension for the peoples and are you one among them getting stressed? Then now you don’t need to get worried about it and let me handle that stress and problem, you just have to do is go through this article and try the stated tips on your own and learn How to Protect Wi-Fi network.

Wireless Networking (Wi-Fi) has made it so easy for anyone to use the Internet on your computer, mobile phones, tablets, and other wireless devices anywhere in the house without the clutter of cables.

With traditional wired networks, it is extremely difficult for someone to steal your bandwidth but the big problem with wireless signals is that others can access the Internet using your broadband connection even while they are in a neighboring building or sitting in a car that’s parked outside your apartment.

This practice, also known as piggybacking, is bad for three reasons:

• It will increase your monthly Internet bill especially when you have to pay per byte of data transfer.
• It will decrease your Internet access speed since you are now sharing the same internet connection with other users.
• It can create a security hazard* as others may hack your computers and access your personal files through your own wireless network.

[*] What do the bad guys use – There have been quite a few instances where innocent Internet users have been arrested for sending hate emails when in reality, their email accounts where hacked though the unsecured Wi-Fi networks that they had at home. Wireshark is a free packet sniffing tool for Linux, Mac, and Windows that can scan traffic flowing through a wireless network including cookies, forms, and other HTTP requests.

How to Secure Your Wireless Network

The good news is that it is not very hard to make your wireless network secure, which will both prevent others from stealing your internet and will also prevent hackers from taking control of your computers through your own wireless network.

Here a few simple things that you should secure your wireless network:

Step 1. Open your router settings page

First, you need to know how to access your wireless router’s settings. Usually, you can do this by typing in “192.168.1.1” into your web browser, and then enter the correct user name and password for the router. This is different for each router, so first, check your router’s user manual.

You can also use Google to find the manuals for most routers online in case you lost the printed manual that came with your router purchase. For your reference, here are direct links to the manufacturer’s site of some popular router brands – Linksys, Cisco, Netgear, Apple AirPort, SMC, D-Link, Buffalo, TP-LINK, 3Com, Belkin.

Step 2. Create a unique password on your router

Once you have logged into your router, the first thing you should do to secure your network is to change the default password* of the router to something more secure.

This will prevent others from accessing the router and you can easily maintain the security settings that you want. You can change the password from the Administration settings on your router’s settings page. The default values are generally admin/password.

[*] What do the bad guys use – This is a public database of default usernames and passwords of wireless routers, modems, switches, and other networking equipment. For instance, anyone can easily make out from the database that the factory-default settings for Linksys equipment can be accessed by using admin for both username and password fields.

Step 3. Change your Network’s SSID name

The SSID (or Wireless Network Name) of your Wireless Router is usually pre-defined as “default” or is set as the brand name of the router (e.g., Linksys). Although this will not make your network inherently* more secure, changing the SSID name of your network is a good idea as it will make it more obvious for others to know which network they are connecting to.

This setting is usually under the basic wireless settings in your router’s settings page. Once this is set, you will always be sure that you are connecting to the correct Wireless network even if there are multiple wireless networks in your area. Don’t use your name, home address or other personal information in the SSID name.

Also see: Change Network Name to Prevent Wi-Fi Theft

[*] What do the bad guys use – Wi-Fi scanning tools like inSSIDer(Windows) and Kismet (Mac, Linux) are free and they will allow anyone to find all the available Wireless Networks in an area even if the routers are not broadcasting their SSID name.

Step 4. Enable Network Encryption

To prevent other computers in the area from using your internet connection, you need to encrypt your wireless signals.

There are several encryption methods for wireless settings, including WEP, WPA (WPA-Personal), and WPA2 (Wi-Fi Protected Access version 2). WEP is basic encryption and therefore least secure (i.e., it can be easily cracked*, but is compatible with a wide range of devices including older hardware, whereas WPA2 is the most secure but is only compatible with hardware manufactured since 2006.

To enable encryption on your Wireless network, open the wireless security settings on your router’s configuration page. This will usually let you select which security method you wish to choose; if you have older devices, choose WEP, otherwise, go with WPA2. Enter a passphrase to access the network; make sure to set this to something that would be difficult for others to guess, and consider using a combination of letters, numbers, and special characters in the passphrase.

[*] What do the bad guys use – AirCrack and Chowpatty are some free tools that allow even non-hackers to crack the WEP / WPA (PSK) keys using a dictionary or brute force techniques. A video on YouTube suggests that AirCrack may be easily used to break WiFi encryption using a jail-broken iPhone or an iPod Touch.

Step 5. Filter MAC addresses

Whether you have a laptop or a Wi-Fi enabled mobile phone, all your wireless devices have a unique MAC address (this has nothing to do with an Apple Mac) just like every computer connected to the Internet has a unique IP address. For an added layer of protection, you can add the MAC addresses of all your devices to your wireless router’s settings so that only the specified devices can connect to your Wi-Fi network.

MAC addresses are hard-coded into your networking equipment, so one address will only let that one device on the network. It is, unfortunately, possible to spoof a MAC address*, but an attacker must first know one of the MAC addresses of the computers that are connected to your Wireless network before he can attempt spoofing.

To enable MAC address filtering, first make a list of all your hardware devices that you want to connect to your wireless network**. Find their MAC addresses, and then add them to the MAC address filtering in your router’s administrative settings. You can find the MAC address for your computers by opening Command Prompt and typing in “ipconfig /all”, which will show your MAC address beside the name “Physical Address”. You can find the MAC addresses of Wireless mobile phones and other portable devices under their network settings, though this will vary for each device.

[*] What do the bad guys use – Someone can change the MAC address of his or her own computer and can easily connect to your network since your network allows connection from devices that have that particular MAC address. Anyone can determine the MAC address of your device wireless using a sniffing tool like Nmap and he can then change the MAC address of his own computer using another free tool like MAC Shift.

Step 6. Reduce the Range of the Wireless Signal

If your wireless router has a high range but you are staying in a small studio apartment, you can consider decreasing the signal range by either changing the mode of your router to 802.11g (instead of 802.11n or 802.11b) or use a different wireless channel.

You can also try placing the router under the bed, inside a shoebox or wrap a foil around the router antennas so that you can somewhat restrict the direction of signals.

Apply the Anti-Wi-Fi Paint – Researchers have developed a special Wi-Fi blocking paint that can help you stop neighbors from accessing your home network without you having to set up encryption at the router level. The paint contains chemicals that block radio signals by absorbing them. “By coating an entire room, Wi-Fi signals can’t get in and, crucially, can’t get out.”

Step 7. Upgrade your Router’s firmware

You should check the manufacturer’s site occasionally to make sure that your router is running the latest firmware. You can find the existing firmware version of your router using the router’s dashboard at 192.168.*.

Connect to your Secure Wireless Network

To conclude, MAC Address filtering with WPA2 (AES) encryption (and a really complex passphrase) is probably the best way to secure your wireless network.

Once you have enabled the various security settings in your wireless router, you need to add the new settings to your computers and other wireless devices so that they all can connect to the Wi-Fi network. You can select to have your computer automatically connect to this network, so you won’t have to enter the SSID, passphrase and other information every time you connect to the Internet.

Your wireless network will now be a lot more secure and intruders may have a tough time intercepting your Wi-Fi signals.

Who is Connected to your Wireless Network

If you are worried that an outsider may be connecting to the Internet using your Wireless network, try AirSnare – it’s a free utility that will look for unexpected MAC addresses on your Wireless network as well as to DHCP requests. Another option is that you open your router’s administration page (using the 192.168.* address) and look for the DHCP Clients Table (it’s under Status > Local Network on Linksys routers). Here you will see a list of all computers and wireless devices that are connected to your home network.

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How To Block Certain Websites In Chrome Using Simple Method

Let’s have a look at the method that will help you to block any of the websites in your Google Chrome browser by using one simple setting that will work as a website blocker, So follow the complete guide discussed below to proceed.

Google Chrome could be named as the king browser as it is one of the most popular and feature-rich web browsers. Managing various aspects related to surfing the websites, storing data, downloads, etc are extremely easy to be done on Chrome. The best capability of the Chrome web browser is that the users of this browser can amend the network behaviors to justify their search reflections. The users can filter the many aspects related to searches, block certain websites from opening and appear anywhere. Blocking any website in Chrome could be great fun and a good benefit for some users. Actually, it is all not straightforward to block any websites through the chrome but a kind of method is required to be applied. For the users keen to know about the procedure to block websites on the Chrome browser we have written this article. We have described the whole procedure of blocking the websites and their complete methods. If you are also willing to know about this method then please read the full article below!

How To Block Certain Websites In Chrome Using Simple Method

The method is simple and straight and you just need to use one manual setting in your browser and then enter the website that you want to block and that’s it you are done with it. So the guide is explained step by step below.

Steps To Block a Website in Chrome:

#1 Blocking a website is really easy through the Chrome browser and eventually there are numerous ways out inside this browser to block any website. One super-easy way to do so is to use an extension for this functioning. There are plenty of website blocking extensions available for the Chrome browser! Another way is to manually block the website through Chrome settings and preferences. The manual method is better and it actually provides full security about its working!

#2 So let’s take on this method to block websites manually on Google Chrome. First of all, go to the Menu of the chrome browser using the Three dots button. Inside the menu select Settings option and then Advanced Settings.

#3 On the Advanced Settings panel check in to the Change Proxy Settings which will be there under the Network option. This will pop up another screen named Windows Internet Properties window.

#4 Select the Privacy panel on this screen and then select the Sites button placed under it. Through there now you can easily add the URL of any site that you wish to block. Simply fill the URL for the site and then close the panel. Just restart the Chrome Browser to take effect for the above settings.

#5 Repeat the above step to add as many sites as you wish to the blocklist and the chrome will over your orders. You will never see those blocked sites appearing inside the chrome.

#6 To revert the process and unblock the sites simply check into the same screen through the above steps from where you added the websites for blocking. And after that view, the blocked sites from the options, edit the restrictions over the sites easily then.

So the above guide was all about How To Block a Website in Chrome. As through the below article your have eventually got to know that how easy it is to block the websites on the Chrome browser. We hope that you liked this article, if you liked it then please try to take some time and share your valuable opinions regarding it. To share the opinions you can log on to the comments section below! And let us know the issue that you faced as a technical team will be always there to assist you in any of your issues.

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RESIZE IMAGE WITHOUT LOOSING QUALITY – HOW TO GUIDE

People hate to visit websites that require more time for loading. So one should always seek to improve the webpage load time, so to do so you have to look at many things like loading sources, page cache, media files, etc. One among such media file is images, adding beauty to your page, but at the same time, it is regarded as the bulkiest resources which takes much time to load on the page, thereby causing inconvenience to the visitors.

But one can improve the page load time by cutting the size of an image to a significant amount. But even resizing the image without any proper knowledge may be troublesome as you may lose the quality it had. Though photoshop provides a nice feature to save the original quality of the pic, it is not preferred much as it’s too expensive to purchase the photoshop application for desktop or web version. So here I’m going to provide you with free online tools to Resize Image without losing Quality

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WEB-BASED TOOLS TO RESIZE IMAGE WITHOUT losing QUALITY

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1.KRAKEN.IO :

JPEG, PNG, GIF, SIV are some of the image formats that can be compressed with this online application. This reduces the image to a quite considerable point without losing the image size.

This application is also available in Chrome and Firefox extensions

2.IMAGEOPTIMIZER.NET:

After uploading the image from your computer, give the size of the image and quality you wish to have after processing. This provides only some control of the output and compression ratio But Greatly Helps to Resize Image without losing Quality.

3.SMUSH.IT:

Smush.it is the best and popular online application you can have to compress images. It is present with an up-loader as well as a URL box to have the image. In this, you will not be provided with the ‘enter’ option to enter the image quality as that of the previous one because it automatically optimizes the image by compressing it to a limit.

4.COMPRESSJPG.COM & COMPRESSPNG.COM :

I would suggest you have this application, for more control of the image quality. A slider appears as soon as you upload an image to auto control the quality of the last image. A preview panel is provided for showcasing the changes according to the quality slider change. So before downloading the image, you can have a review of your final image. This application is available on different domains for JPG and PNG images.

5.PUNYPNG.COM :

This application is available to compress the PNG files. Upload an image and you can get a compressed size of the image. Besides this, tinypng.com, a quick tool to compress the PNG images to the best level without affecting the image quality.

DESKTOP TOOL TO RESIZE IMAGE WITHOUT losing QUALITY

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If you need a Desktop tool to do this task then I would suggest you to have PNG Gauntlet as your first choice, You will need. Microsoft Net Framework 4.0 to run this tool on your Windows.

You won’t face any difficulty in Using this tool as it is very User-Friendly. While Optimizing the images PNG Gauntlet will show you the older size and Optimized size of the image. this Program is not that Fastest at its work but Useful.

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