Categories
Tutorials

[Video] How to set up a Linux Virtual Machine using Virtual box

A virtual machine is a program that acts as a virtual computer. They allow you to run other operating systems within your current operating system – the operating systems will run as if they are just another program on your computer. Virtual machines are ideal for testing out other operating systems – like the new Windows 10 or alternative Linux operating systems.

The video below will guide you in setting up your own Virtual Machine in no time.

 

Categories
Hack Tutorials

The Best Data and Voice Deal For Any Mobile Network In Nigeria

You can only enjoy this cost saving tip if you are subscribed to the Globacom Mobile Network. If you are not, after reading this tip, you may consider if it is worth your while to join the network.

HACK ALERT!

This article contains a reference to a mild hacking technique.

  1. You will need to change the IMEI of your phone to that of a Blackberry phone. The technique was discussed in an earlier post. Works best on phones with MTK processors. The best tool to use for changing your IMEI is MTK Engineering Mode android app, especially for owners of Tecno phones who have difficulties changing their IMEI using Mobileuncle MTK Tools. NOTE THAT YOU NEED NOT ROOT YOUR PHONE TO DO THIS.
  2. Subscribe to Globacom’s Glo Bumpa plan. The plan guarantees you a 200% bonus on every credit you load and is valid for as long as 21 Days. Calls are at 50k/s to any network. Not valid for International calls though. It is advisable to use physical recharge cards as virtual recharges do not seem to offer this benefit.

Here is how it works;

Say you load a card with value N1,000.00. Immediately, you get N2,000.00 for voice calls in your promo account, while still retaining the initial N1,000.00.

The N1,000.00 can go towards your BIS data plan. You do this by sending comonth as a text message to 777. You get 3GB of data for your effort. The data is valid for 30days, though you can subscribe as many times as you wish, while accruing voice credits along the line, thanks to your glo bumpa subscription.

Now the word is out.

 

Categories
Tutorials

How To Set A Password To Protect Your External Drive

Want to stop prying eyes from snooping into the content of your external drive?

Or in the event of the loss of your flash drive (a very probable eventuality), you want to be assured that the information contained in it remains secured. Information that can be taken advantage of or used against you.

Then secure it Bitlocker. This feature has been bundled with Windows OS since Windows Vista. Though you will need the Professional, Ultimate or Enterprise versions of Windows 7, 8, 8.1 or 10 to activate bitlocker on your drive, you can however view the contents of the drive, if you have the password, on any PC with OS as old as Windows XP installed.

 

HOW TO ACTIVATE BITLOCKER ON YOUR DRIVE

  1. Insert the drive into your PC
  2. Identify the icon for the inserted drive and right click on it.
  3. Select “Turn Bitlocker On”
  4. Bitlocker initialises the drive. Takes a few seconds.
  5. A screen pops up asking you to CHOOSE HOW YOU WANT TO UNLOCK THE DRIVE
  6. Select the option to USE A PASSWORD TO UNLOCK THE DRIVE

Depending on the size of the drive and the amount of data contained in it, the encryption process may take a very long while. Best carried out on an empty drive, could take as little as less than a minute to complete.

* DO NOT INTERRUPT THE ENCRYPTION PROCESS*

After this procedure, the drive prompts you for a password any time the secured drive is inserted into any PC. However, there is an option to have the drive not request for password for trusted PCs.

This is a very simple procedure. However, you may find the video clip below helpful

Categories
Hosting Tutorials

How To Move Your Blog To A New Hosting Company

lgSo you finally decided to move your WordPress blog or site to arthurwales.net but you have no clue how to go about it. Or maybe you do but you find all this database thingy a bit tricky. And perhaps, that has been the only reason you have stayed on with your present hosting company even though their services sucks.

These scenarios sound familiar to anyone?

It is funny how easy the process of moving hosts is, no thanks to the “geeks” that paint the whole process as nigthmarish, using “geek speak” to describe processes that can be explained in simple (Nigerian) English!

The procedure may differ slightly depending on the control panel you are using. cPanel is probably one of the most common and the easiest to work with, however the underlying principles is the same with all control panels. At arthurwales.net, we have migrated, successfully, websites from even open source control panels like Virtualmin and ISPConfig.

For this purpose, we would assume you are using cPanel.

Here goes …

  1. Subscribe for a hosting account with arthurwales.net.
  2. On subscription, a mail will be sent to you titled NEW ACCOUNT INFORMATION which will contain your server account details and the login information. Also contained in this mail are two important URLS in the form  http://174.122.148.***:2082/ (Temporary Control Panel URL) and  http://174.122.148.***/~rztiartt/ (Temporary Webpage URL)
  3. Log into your cPanel Using your Temporary Control Panel URL and use Fantastico or QuickInstall to install WordPress. Perform all necessary updates.
  4. Create a backup of your website and download to your PC. Do this by logging into your old cpanel – under FILES, click BACKUPS. Under Full backup, click “Download or Generate a Full Website Backup”. Save file to your Home Directory, then copy to your PC.
  5.  The backup file is usually in a compressed format. Use an application like WinZip or Winrar to extract the content to a folder on your PC. We will call this extracted folder “BACKUP” folder.
  6. In the BACKUP folder, look for a file with “BIZ_DIR” extension. It is usually the largest file. Change the extension of this file to “ZIP” and extract to a folder on your desktop.
  7. Navigate to the folder “public_html”.
  8. Select and Upload the entire WP-Content folder from your old host and overwrite same in the public_html folder of your account with your new host – arthurwales.net.
  9. Go into your new hosting control panel and find out how to get into phpmyadmin. Once you are in phpmyadmin click on your database name on the left.
  10. Click on the “Import” tab on the top of the screen.
  11. Under “File to Import”, browse to the BACKUP folder and look for a compressed file in the format domainname_mysql_domainname. Select it. This is your mysql backup. Click the “Go” button at the bottom of the page. With this, you have successfully imported the database from your old blog.
  12. Now go to your new blog using your Temporary Webpage URL and it should let you in it, then login with your username and password from your old blog and then your all set, your blog should work the same as if it was on your old host.
  13. From your domain registrar admin panel, change your nameservers to that of the new host: ns1.arthurwales.net and ns2.arthurwales.net

Migration of your blog is now completed. Easy ain’t it? This method guarantees NO downtime to your blog.

The tutorial above on moving your website to another host is probably the easiest approach you can ever get. However, if you still find it difficult wrapping your head around it,or you would rather not take the risk so that you don’t break something, please sign up for our premium support on arthurwales.net. It is going for a promotional 50% discount price of N15,000.00. We will take care of all your web hosting scary stuffs and much more!

arthurwales.net … “So, why don’t you host with us?”

Categories
Networking Tutorials

Securing wireless networks at home and at work

Not securing your wireless network is pretty dangerous these days. As an IT professional you really have a responsibility to not only secure your own wireless LAN, but also those of the people close to you. I mean, if you were a doctor and stopped by your mom’s house one day to find her chain smoking in a tanning bed, wouldn’t you say something?

read more

Categories
Tutorials

Network Your Homes Wirelessly – Final Words

We would be using the hardware listed below for our networking project. Of course, yours would most likely vary from this.With this set-up in place, any device can be connected to the network wirelessly to share its resources.

– Samsung N110 netbook (referred to as the Host PC)
– Starcomms USB internet modem
– Samsung SCX-4521F All-In-One Laser Printer
Belkin N+ Wireless Router
– UPS/Inverter (Optional but recommended)

We have discussed in earlier posts in this series on how to configure your PCs, connect and install peripherals. I would suggest you go through them first. However, i would itemize the steps to take below;

– Install the Starcomms modem to the PC and make sure you can connect to the internet.
– Share the Internet connection. A static IP address would be automatically assigned to the PC, please note this. Mine is 192.168.0.1
– Connect and install the Printer to the PC and make a test print.
– Share the printer, make it available to the network.
– Use a “Straight-Through” network cable to connect the network port of the PC to one of the (usually) four switch ports on the back of the router. Make sure you do not connect the cable to the Internet (WAN) port of the router. These ports are usually differentiated by the colours of the ports.
Ensure your router has been previously setup according to the specification of the manufacturers.The DHCP configuration of the router should remain enabled, makes no difference for this project.

From my setup, the IP address allocated to the Host PC by the Starcomms modem is 192.168.0.1. Any other device that would be connected to this network must have static IP address allocated to it in the form 192.168.0.x where X is from 2 to 254.

For the Host PC, the portion labelled “Default Gateway” and “Preferred DNS Server” in the IP addressing screen must be left blank. However, for other devices that would be connecting to the network, the IP address of the Host PC should be used for the “Default Gateway” and “Preferred DNS Server”, which in my case is 192.168.0.1.

All the peripherals attached to the PC can be shared by ANY device on the network, if it has the capability. For your PCs, ensure that the software for the peripheral (Printer) is installed on each PC and the Printer configured on the PC. For other mobile devices like your phones, tablets, ipads, etc, most have inbuilt functionalities or available 3rd party softwares to send print jobs to the printer.

HTC TyTn II is a Windows Mobiles 6 phone. By default, it does not come with an application to enable it send print jobs wirelessly to a printer but it does it with a 3rd party application called Active Print. The application is also available on the IOS platform for iPhone, iPad and iPod Touch.

Other devices that may be of interest are network surveillance cameras. Install one in your home and view whatever is going on in your home from your office via the internet. The options are endless.

We have tried to make this series of tutorials very easy to understand but as with everything computers, hiccups can always present itself when you do not expect. The first step you should take whenever you do not have connectivity on your device(s) is to reboot your host PC and the router.

However, if our networking series seems a bit out of your league but you really need to have your home or office networked, wired or wireless, please contact us by clicking here and we will be glad to assist you – for a fee of course!.

Categories
Tutorials

Network Your Homes Wirelessly

Notwithstanding the fact that wired networks are usually more reliable and faster, there is a preference for wireless networks in most homes and small offices. Understandably so, because wired networks can be very unsightly and manually intensive to set up.

Most wired networks nowadays can guarantee a “through-put” of as much as 100Mbps (Mega Bits Per Second). Think of throughput as the amount of fluid (data) that can pass through a pipe (cable). More modern networks can even provide throughputs as high as 1Gbps or even more. However, this can only be achieved with compatible cabling and equipment. Please note that “bps” (bits per second) is different from “Bps” (Bytes per second), 1 Byte = 8 bits.

The speed of transfer of data in a wireless network is guided by some standards. You probably may have seen stuffs like “a/b/g/n” or “802.11a/b/g/n” on devices you own.

– 802.11a devices have the ability to channel as much as 54Mb data across a network wirelessly in a second. They, however, can only travel a short distance.
– 802.11b devices can transmit at a maximum rate of 11Mbps over a longer distance
– 802.11g devices can transmit at a maximum rate of 54Mbps over a longer distance
– 802.11n devices can transmit at a maximum rate of about 600Mbps over an even longer distance

I guess it is no brainer what standard you will expect your devices to have. However, apart from the minor inconsequential fact that the 802.11n standard has not been ractified, a lot of devices in the market today can only boast of having 802.11g capabilities. The implication of this is that your network is only as fast as the speed of the slowest device on your network. For example, if you have a router capable of 802.11n speeds and a number of PCs with the same capability, under very ideal circumstances, you would expect your network to attain speeds as fast as 600Mbps. Let us assume you now introduce a device capable of 802.11g to the network, the speed of your network will come crashing down to a maximum of 54Mbps!

That said, why is there still a preference for wireless networks, especially in homes?

– The throughput requirement for a home is usually adequately covered by even the slowest speeds (802.11b – 11Mbps)
– Reduction or elimination of the higher costs of a wired connection.
– Elimination of wire clutters associated with wired networks.
– Share a single internet access via wifi either with a network capable internet modem (IPNX) or a USB modem (Starcomms & GSM networks)
– Share a single printer and other peripherals across multiple PCs
– Connect your mobile devices like mobile phones, ipad, tablets, etc wirelessly to the network and share internet access and printer with them. Yes, print from your phone! And the printer does not necessarily need to have wifi capabilities.

For this project, the set of devices below are ideal;
– A wireless router.
– Network capable modem (IPNX, Cobranet’s UGO, etc)
– Wifi enabled printer
– UPS/Inverter to connect these devices to (Optional)

With these devices, the process of networking your home would be much simplified.

However, you would rarely find households/ offices having all the devices that would be connected to the network having network ports or Wifi capabilities. The devices / equipment listed below are more common in a lot of households and offices and we would be using them for our project;

– A wireless router
– USB internet modem (starcomms, MTN, glo, airtel, etisalat, etc) or any tethered phone
– ANY Printer
– A Computer (Desktop/Laptop) to connect the internet modem and printer to.It can be any old PC.
– UPS/Inverter to connect these devices to (Optional)

In subsequent write-ups, we will should you how you can go about creating a network in your homes and offices.

Categories
Tutorials

Peer to Peer Networking (Wired) – Part 3

In our last write-up, we were able to confirm that the two PCs were communicating with each other. We initially used the IP addresses 192.168.10.11 for PC1 and 192.168.10.12 for PC2. But with the introduction of the Starcomms USB modem to the network, we had to change the IP addresses of the PCs so that they would have the same network address with the internet access (192.168.137.1 and 192.168.137.2).

Most laptops have the limitation of having just a single network port. The implication of this is that a laptop would only connect to another PC, forming a maximum of 2 PC network. For desktop computers, you may be able to install additional network ports. This, however, is not the cheapest or most efficient method to adopt.

A switch is a device that can be introduced into a Peer to Peer network to connect several computers together to form a network. The number of computers you plan to have in your network would determine the type of switch you should buy as switches come with varying number of ports.

Installation Steps

– Assign static IP addressess to each PC using the network address of the Starcomms USB modem as a guide. The IP addresses should be 192.168.137.1 for the first PC and up to a maximum of 192.168.137.254 (See Part 2 for procedure)
– Identify the PC (Host PC) that will host your USB internet modem and other peripherals.The IP address of that PC would be your gateway and DNS address that you will use on other PCs on the network.(See Part 2 for procedure)
– Configure each PC to be in the same Work Group (See Part 2 for procedure)
– Install the internet USB modem and other peripherals (printer) on the Host PC and ensure they are functional.
– Install the printer software on other PCs in the network.
– Purchase a “Straight-Through” network cable for each PC on your network. This type of cable is different from the “Cross-Over” cable and are priced less than N500. You can easily identify them from the clip at each end of the cable, the colour sequence of the cable strands are the same for both ends.
– Connect the network port of each PC to a separate port on the switch.
– Use the “ping” command to ensure all PCs are communicating with each other.

If you have been successful this far, congratulations, you now have a basic knowledge of how computer networking works.

However, one major disadvantage of this arrangement is that the emphasis placed on the Host PC, the PC must always be on to be able to use the resources attached to it. A better and more professional arrangement calls for the introduction of another device called ROUTER.A Router basically allows devices operating on different networks to communicate with each other. Aside from the fact that the Starcomms USB modem is not best suited for a network environment, you will also remember that we had to change the IP addresses of the PCs in the network for them to access the internet. With a Router and a network-ready internet modem like the one provided by IPNX, what you have to do is more of a plug and play affair.

STEPS

– Configure your router according to manufacturer’s instruction.

– You do not have to assign any IP address to any PC, this will be done automatically (DHCP). However, it is preferred assigning Static IP for easier network administration.

– Ensure that DHCP is enabled or disabled on the router according to your preference.

– Use the IP address of the internet modem as your gateway and DNS IP address.

– Attach your internet modem (IPNX) using a “straight Through” cable to the single port coloured yellow on the router usually called the WAN port.

– If you have a PC arrangement of 4 or less, you can connect directly using “straight Through” cables to the 4 ports coloured grey on the Router. If you have more than 4 PCs, you can connect the PCs to a multiple port switch, then connect one of the ports on the switch to one of the grey coloured ports on the Router.
You are also advised to buy network-capable printers that can be connected directly to a port.

Categories
Tutorials

Peer to Peer Networking (Wired) – Part 2

After setting up the network, you need to confirm that the two computers are “seeing” each other or, better put, are able to communicate with each other.

One important thing i failed to mention in my first post is that both PCs must have the user account passworded. Do that if you have not.

Remember that you have assigned static IP address 192.168.10.11 to PC1 and 192.168.10.12 to PC2.

At this point, i will advise you disable temporarily your Internet security software because they contain firewalls that may prevent the 2 computers from communicating with each other. I will advise that you even uninstall it totally and install an antivirus instead. Those using Norton Internet security, especially, should please note this.

FOR PC1 and PC2
– Launch the command terminal

  1. Click “Start”
  2. Click “run” on the right pane of your “start menu”. A text box would pop up
  3. Type cmd in the text box
  4. Click OK. A new window, called the COMMAND TERMINAL, would be display. WARNING : It looks geekish but fear not.

If “run” is not displayed in your “start menu”, follow this sequence to unveil it;

  1. Right-click on “start” on your task bar
  2. Select “Properties”
  3. Ensure the “start menu” tab is selected in the window that pops up.
  4. Select “customize”
  5. Scroll through the list and select the check box “Run Command”
  6. Click OK.

FROM PC2
– To confirm PC2 can communicate with PC1

  1. In the command terminal after the “>” sign
  2. Type ping 192.168.10.11
  3. Press Enter
  4. You should have something like the picture below on your screen

Pinging

Note the summary message on line 8
“Packets : Sent = 4, Received = 4, Lost = 0 (0% Loss)”
If you have “Loss” greater than 0 or more than 0% loss, you may repeat the command about 2 more times. If nothing changes, switch yourself to troubleshooting mode and check through all you have done. Do not forget to check your cables and disable or uninstall your internet security software!

FROM PC1
– To confirm PC1 can communicate with PC2;

  1. In the command terminal after the “>” sign
  2. Type ping 192.168.10.12
  3. Press Enter
  4. You should have something like the picture above on your screen

Also note the summary message on line 8, it must be “Packets : Sent = 4, Received = 4, Lost = 0 (0% Loss)”

Sharing Files Between The Two Computers

You will need to create folders on each PC that you will allow the contents to be shared. Other PCs would not have unrestricted access to your files except you allow them to.

  1. Right-Click on the folders you have created that would contain files to be shared.
  2. Select “Properties”
  3. Select the “Sharing” tab from the pop up window.
  4. Click “Share”. Select “Everyone” from the drop down menu
  5. Click Done. You will be taken back to the “Sharing” tab
  6. Click “Advanced Sharing”
  7. Enable the check box “Share This Folder”
  8. Click OK.

To access shared files or folder on another PC on the network;

  1. Select “Start menu”
  2. Click Computer
  3. On the right pane, select “Network”. You should see the 2 PCs on the network.
  4. Click the PC you want to access files from. You might be prompted for username and password if it is your first time of accessing that PC.
  5. All shared folders will be available to you.

To install your printer to the network;

  1. Install the printer software on both PCs
  2. Connect the printer to one of the PCs. I would advise you install these peripherals to your less fancied PC or a desktop, if available.You will appreciate this recommendation better when we start with wireless networking.
  3. Do a test print from the PC connected to the printer to be sure it is properly set up.
  4. Click “Start”-“Control Panel”-“Devices and Printers”
  5. Right-Click on the printer icon, select “Printer Properties”, then click “sharing” tab
  6. Select the check boxes “Share this Printer” and “Render jobs on client computers”. Your printer displays may vary.

On the other PC

  1. Click “Start”-“Control Panel”-“Devices and Printers”
  2. Click “Add a Printer” from top of screen
  3. Select “Add a network, wireless or bluetooth printer” from the pop-up window
  4. Select the appropriate printer, click next till end.

Printer Sharing

Sharing Internet Access

In this instance, we would be using the regular Starcomms EVDO USB modem. I must warn that the browsing experience may not be nice if you are not in a location with good EVDO (broadband) speed. The same process should be applicable to GSM modems too, i have not tried it.

Insert the Starcomms USB on the Host PC. The installation process should be automatic.

Connect the PC to the internet.

Click “Start”-“Control Panel”-“Network and Internet”-“Network and Sharing Center”

You will notice at least 2 active connections, one is your Peer to Peer wired network most likely labelled “Local Area Network” and the internet connection. My Starcomms internet connection is labelled “ZTE Wireless Connection

You should have a screen similar to this;

Network Sharing Center

Click on “ZTE Wireless Terminal” on the right pane. The following window will pop-up;

Click on “Properties” to bring up the next screen

Select the “sharing” tab and select the check boxes as shown in the picture above. Also select “Local Area Connection” from the drop down menu. The screens below would be shown during this process.

The last image indicates that the IP address of your PC would be changed to the same network as Starcomms Internet, in my case it is 192.168.137.1, this is essential for the PC to access the internet.

Since we are using static IP and not DHCP (automatic allocation of IP addresses), we would need to put the second PC on this same network. We would change the IP address to, say, 192.168.137.2 . The procedure for doing this is explained in the first part of this write-up. While at it, you should also change the gateway address and the DNS server as shown in the image below. It is very important!


Phew! Really need to catch my breadth. This write-up ends here. The final part of this series would be on wired Peer to Peer networking with more than 2 systems in a network.

Stay hooked!

Categories
Tutorials

Peer to Peer Networking (Wired)

Peer to Peer (P2P) Networking is probably the simplest form of computer networking available.

Wikipaedia defines the word PEER as a group of people who share a similar or equal status. Likewise, for computers in a peer to peer formation, each computer is equally privileged and are equipotent participants

The option of whether to use a wired or wireless medium is a choice you would have to make on your own.However you may use the following points to guide you;

– Wired networks are usually more secured.
– Wired networks are usually faster and less prone to speed drops
– Wired networks are usually proned to unsightly wire clutters
– With wireless networks, you are not restricted to where you can use your devices, so long you are within the range of the wireless signals.

My recommendation is that you should use wireless networking for your homes and wired networking for your offices, however, this is not cast in stone.

So, why do we need a network?

It is very commonplace in our homes to find multiple computers. However, resources are usually limited.

– With a network, multiple computers can share a single internet access.
– Multiple computers can share devices like printers.
– You can easily move or copy files and folders from one computer to the other.

This write-up will attempt to put you through the process of setting up your computers in a wired networking arrangement. We would be treating the wireless option subsequently.

The steps required to network 2 computers is slightly different for multiple computers.

For A 2-Computer Network;

Peer To Peer

Steps

– Get a Network Cable from a computer accessories store. Insist on the type called “cross-over” cable. Look at the wire arrangement at the two end clips of the cable, the clips are usually transparent. If the wires are arranged with different colour sequence, chances are that you have the right cable. It should not cost more than N500.

– An alternative is for you to “crimp” or make your cables yourself, if you have the know-how. However, it is often recommended to setup your network with manufactured cables and when you are sure it is up and running, replace with your own cables. At least you will know where the fault is from when the network suddenly stops responding.

– Create a Workgroup with the name of your choice on each computer and join each computer to it. Note that the workgroup name must be the same on each computer. Follow the steps below if you are using a Windows 7 PC;

  1. Click on “Start Menu”
  2. Right-Click on “Computer”
  3. Click “Properties”
  4. Under the header “Change name, domain and workgroup setting”, click “change setting”
  5. From the pop-up, under “computer name” tab, click “change”

– Assign Static IP addresses to both PCs, preferrably, in the form 192.168.10.11 for PC1 and 192.168.10.12 for PC2. Ensure the subnet mask for each PC is 255.255.255.0. Follow the steps below if you are using a Windows 7 PC;

  1. Click on “Start Menu”
  2. Click on “Control Panel”
  3. Click “Network and Internet”
  4. Click on “Network and Sharing Center”
  5. Click “changer adapter settings” on the left pane
  6. Right-Click on “Local Area Network” and click “properties”
  7. Click on (and ensure the checkbox remains selected) “Internet Protocol Version 4 (TCP/IP)”
  8. Click “properties”
  9. Select “Use the following IP address”

Internet Protocol

– Lastly, we connect the Network Cable to the Network port of each computer.

We have concluded our task on the setting up of a wired Peer to Peer Network. In our next write-up, we would confirm if our PCs are well connected, learn how to share internet access and also learn how to attach peripherals like printers.