How to find IP address of Mac

There are multiple ways to find an IP address on Mac computers running IOS. If your require knowing you IP address, then one of the following methods can help.

Step 1: Using terminal screen. In this process, You need to click command and space button togather to open “spotlight Search” in your Mac machine. Once spotlight Search bar appears, type “terminal” and hit return key. Your terminal window will pop open. In the command line of terminal window, type “ifconfig” and press the return key. You will get several lines of output. Scroll to find something called “en0”. You Mac IP will be listed in this section.

Step 2: Using network window. Open the spotlight Search similar to how we did in step 1. Search for word “wifi” in your spotlight search bar and hit enter. This will open the network detail window. Head to “advanced” button at bottom right corner and click it. In the next step, click on TCP/IP tab at top center. You will see your Mac IP under ipv4 heading here.

If you want to see step by step video about how to do above steps, click below to watch the video.


How to find Internal IP address in windows

At times, we need to know internal IP assigned to our PC or laptops connected over a network. This might be required to connect another device, or for a file transfer, desktop sharing etc.

Its super easy in windows operating system using ipconfig command in command prompt.

Just search cmd in your windows search and hit enter. In next step, type ipconfig and hit enter. There you go, you have your internal ip right there.

Here is a 40 seconds video with detailed steps:


How to sketch with autodraw. AI in drawings

AutoDraw is a new kind of drawing tool. It pairs machine learning with drawings from talented artists to help everyone create anything visual, fast. There’s nothing to download. Nothing to pay for. And it works anywhere: smartphone, tablet, laptop, desktop, etc.

AutoDraw’s suggestion tool uses the same technology used in QuickDraw, to guess what you’re trying to draw. Right now, it can guess hundreds of drawings and we look forward to adding more over time. If you are interested in creating drawings for others to use with AutoDraw, contact us here.

We hope AutoDraw will help make drawing and creating a little more accessible and fun for everyone.

Built by Dan Motzenbecker and Kyle Phillips with friends at Google Creative Lab.

Here is a quick video tutorial on how to use the autodraw page to enhance your drawing.

Its free and developed by Google.

Broadband, Education

Improving Your Router’s Signal Strength. It Really Works!!!

WiFi gives wireless waves for the use of internet. There are many devices that uses WiFi to communicate to the wonderful world of internet. Lack of wires make WiFi easier to access and most demanding technology. Most of us are heaving WiFi signals at our home. These signals are broadcasted by a device called Routers. When we opt for an Internet service, our ISP (Internet Service Provider) will provide us with a Router. Alternatively, we can also purchase our own Router.

Our WiFi signal varies by make and model of our Router. Depending upon Router’s brand, we can have a strong or weak signal. No matter whatever router we install at our home, there remains some grey areas where we cannot find optimal WiFi signals. Hence, we may experience slow speed in those areas of home or even no connection. These are called dark areas.

If you do a search on any of the search engine for boosting WiFi signals, you will find thousands of web page suggesting tips and tricks to boost up your WiFi signals. You will also find several device available to boost up your WiFi signals. In this blog, I am sharing with you a very handy technique that you can try at your home to boost up you WiFi signals. I have personally used this trick and the result was worth. My WiFi signals improved about 30 – 40 %

Table of Contents

Things to know: Before you go ahead with the tricks mentioned below, it is important to understand how WiFi signals are measured. WiFi signals are measured in a unit called decibel milliwatts (dBm). A signal strength less than -70 dBm is not considered good. For example, a signal strength of -80 dBm is not good and you will encounter internet issue. Please note that higher the number, lesser signal strength it is. For example -80 dBm is weaker than -70 dBm. -60 dBm is better out of these 2 signals.

How Do Routers Broadcast Signals: Home WiFi routers contains antennas. These antennas can be an internal antenna (placed inside the router cabinet) or an external antenna. The signals broadcast from WiFi routers are generally of 2.4Ghz or 5Ghz. In general 2.4 Ghz signals have an average internet speed 10-29Mbps on 802.11g standard and 150Mbps on 802.11n standard. On other hand, a 5Ghz router will have an average speed of 3-32Mbps on 802.11a standard and 210Mbps-1Gbps speed on 802.11ac standard.

Checking Your Current Signal Strength: I would suggest you to download any of the WiFi analyzer software in your phone and read the WiFi signal strength in the areas identified as dark areas. Android phone users can use “WiFi Analyzer” or NetSpot. iPhone user can use “Fing” or “WiFi Analyzer” app for the purpose. As these signals are measured in dBm and their values are negative, you should remember that a lesser negative number is a more powerful signal. Make a note of your WiFi signal strength before proceeding further.

WiFi Signal measurement graph

A good WiFi signal must not exceed -70dBm. Signal range from -60dBm to -70dBm are considered below average quality signals.

How to boost up WiFi Signals at Home

Boosting WiFi Signal using Mirror: I bet this is world’s simplest and easy to implement trick. It will cost you nothing. All you need is a small mirror to boost up your WiFi signals by up to 40% strong.

I have a Nokia Router installed by my ISP that has its antenna placed internally. I just placed a mirror at the back of the Router and WOHO!!! The signal strength is now -33dBm. This can be considered as an excellent signal strength. Please see the Image below to understand what exactly I have done.

Nokia Router with Mirror reflector

Boosting WiFi signal using Aluminium foil: Aluminium foils are commonly available in every house. We often use it to keep our food hot. This Aluminium foil works great when it come to boosting your WiFi signals. We can make a simple parabolic reflector using Aluminium foil. It works great and you will see a good difference in your WiFi signals in dark areas of your rooms.

Nokia Router with Aluminium Foil reflector

Here is how I have made a simple parabolic reflected using Aluminium foil. I just staple the foil on a hard square paper and placed it behind my Router. It works great. Here is a link to Youtube video on how to make a simple parabolic reflector using Aluminium foil.

Boosting WiFi Signal using Old Router as Repeater: This trick requires a little bit of technical understanding and you should have another working router. I would suggest an old Router that you might have and you are no longer using this. A second Router can be used as Wireless or Wired Repeater.

Essentially, a Wi-Fi repeater extends the coverage area of your existing wireless network by amplifying the signal and then transmitting that signal to a wider area. In short, it receives a wireless signal from your router and rebroadcasts it to another localized area, providing a “bubble” of additional network coverage that you can access when you’re out of range of your router’s finite coverage area.

Here is a detailed instruction of setting up a D-Link DIR-816 as a repeater.

Now that you are aware about the simple yet powerful techniques to boost up your WiFi signals at every corner of your room, its time to enjoy chatting or conferencing from balcony. Enjoy!!


Accessing Password Protected Excel VBA

In a recent assignment at my office last week, I came across a situation where I had to make some changes in the VBA code of an excel document. The excel document was something getting used from long time and there was no one having details related to password through which VBA code in that document was protected. Also there was no related supporting document available. I was in a situation where I required getting the access of VBA code without password.

After a lot of search on web and spending quite some time, I was able to access the VBA code without knowing the password. Although there are a lot of information already available on web related to the topic, however most of the information are either in bits and pieces or not very simple to understand for a non techie person.

Hence I decided to write this blog to present the information in simplest manner possible. Give it a try if you are in similar situation and I am sure this is going to work for you as well. Please follow all steps precisely as mentioned.

Before we jump into steps to access the password protected VBA, it make sense to understand how it works. When we try to access password protected VBA document, the VBE (Visual Basic Editor) will call in build system function to create the password dialogue box. This dialogue box is where the user will enter password to access the document and will click on OK. If the user enters correct password and press OK, the system function will return 1. If the user enters incorrect password or click cancel, the system function will return 0. After the dialogue box is closed, the Visual Basic Editor (VBE) will check the value entered. If the value is 1, VBE will think that the password is right and will open the document. On the other hand, if the value is 0, VBE will think that password is incorrect and will not allow access to the document. The trick that we are going to use is basically to swap the value of 0 to 1 by using a code that can be written easily or can be taken from this post and included in your excel document. Hope this basic helps in making the concept a little easier. Lets jump into the steps now.

For the ease of understanding, I have created a sample VBA document called “Password_Test”. As you can see below, when I try to open this VBAProject, it prompts for a password to be entered.

Okay, so now we will go to the steps directly.

Step 1: First step first. make sure you take a backup of your original file and keep it at a different location in your PC or Laptop so that if accidentally we corrupt the file then we have a backup readily available.

Step 2: Create a new file with .xlsm extension.

An XLSM file is a macro-enabled spreadsheet created by Microsoft Excel, a widely used spreadsheet program that comes with every edition of the Microsoft Office suite.

For ease of understanding, I have named this file as “macro.xlsm”. To create this file, open MS Excel application and then go to File->SaveAs->location and then name your file as macro.xlsm. You can also choose file type from drop down.

Step 3: Open you locked VBA project file. In our case, its “Password_Test”.

Step 4: Open the new blank file that we just created. In our case its “macro.xlsm”

Step 5: We need to insert certain code in our new created “macro.xlsm” file. Once the file is open, click “ctrl+F11” to open the Visual Basic Editor. Once your VBE is open, you will see a screen like this.

Step 6: Select VBAProject (macro.xlsm) then go to Insert and click on Module. A blank page will open on right panel of the VB Editor.

Step 7: On the blank page that open on right of VBE, copy and paste below mentioned code:

Option Explicit


Private Declare PtrSafe Sub MoveMemory Lib "kernel32" Alias "RtlMoveMemory" _
(Destination As LongPtr, Source As LongPtr, ByVal Length As LongPtr)

Private Declare PtrSafe Function VirtualProtect Lib "kernel32" (lpAddress As LongPtr, _
ByVal dwSize As LongPtr, ByVal flNewProtect As LongPtr, lpflOldProtect As LongPtr) As LongPtr

Private Declare PtrSafe Function GetModuleHandleA Lib "kernel32" (ByVal lpModuleName As String) As LongPtr

Private Declare PtrSafe Function GetProcAddress Lib "kernel32" (ByVal hModule As LongPtr, _
ByVal lpProcName As String) As LongPtr

Private Declare PtrSafe Function DialogBoxParam Lib "user32" Alias "DialogBoxParamA" (ByVal hInstance As LongPtr, _
ByVal pTemplateName As LongPtr, ByVal hWndParent As LongPtr, _
ByVal lpDialogFunc As LongPtr, ByVal dwInitParam As LongPtr) As Integer

Dim HookBytes(0 To 5) As Byte
Dim OriginBytes(0 To 5) As Byte
Dim pFunc As LongPtr
Dim Flag As Boolean

Private Function GetPtr(ByVal Value As LongPtr) As LongPtr
    GetPtr = Value
End Function

Public Sub RecoverBytes()
    If Flag Then MoveMemory ByVal pFunc, ByVal VarPtr(OriginBytes(0)), 6
End Sub

Public Function Hook() As Boolean
    Dim TmpBytes(0 To 5) As Byte
    Dim p As LongPtr
    Dim OriginProtect As LongPtr

    Hook = False

    pFunc = GetProcAddress(GetModuleHandleA("user32.dll"), "DialogBoxParamA")

    If VirtualProtect(ByVal pFunc, 6, PAGE_EXECUTE_READWRITE, OriginProtect) <> 0 Then

        MoveMemory ByVal VarPtr(TmpBytes(0)), ByVal pFunc, 6
        If TmpBytes(0) <> &H68 Then

            MoveMemory ByVal VarPtr(OriginBytes(0)), ByVal pFunc, 6

            p = GetPtr(AddressOf MyDialogBoxParam)

            HookBytes(0) = &H68
            MoveMemory ByVal VarPtr(HookBytes(1)), ByVal VarPtr(p), 4
            HookBytes(5) = &HC3

            MoveMemory ByVal pFunc, ByVal VarPtr(HookBytes(0)), 6
            Flag = True
            Hook = True
        End If
    End If
End Function

Private Function MyDialogBoxParam(ByVal hInstance As LongPtr, _
ByVal pTemplateName As LongPtr, ByVal hWndParent As LongPtr, _
ByVal lpDialogFunc As LongPtr, ByVal dwInitParam As LongPtr) As Integer

    If pTemplateName = 4070 Then
        MyDialogBoxParam = 1
        MyDialogBoxParam = DialogBoxParam(hInstance, pTemplateName, _
                   hWndParent, lpDialogFunc, dwInitParam)
    End If
End Function

Step 8: Repeat Step 6 and 7 and paste following code in “Module 2”

Sub unprotected()
    If Hook Then
        MsgBox "VBA Project is unprotected!", vbInformation, "*****"
    End If
End Sub

Step 9: We are almost done. Next you need to run your code. To run the code, click on small Play button on the menu bar on top

You will see a message like this. Click on “OK” and your locked VBA project will be accessible now. Please note: This trick will work on 64 bit MS Excel only.


How to share screen without installing any software

If we want to share our screen for work or school related presentation, we require a specialized software to share the screen. Most of the organizations and school already have licenced tool available for this purpose. Most of the screen sharing tools requires an advance preparation before you can start. For example, the software must be downloaded, installed, configured and registered before you can actually start using the same. In some organizations, access to these tools are restricted to higher management only. Forget about organization, in our day to day life we often require sharing screen with a friend or group of people when we look for a quick solution rather than going for a licenced tool.

We will look at some of the fastest screen sharing website/tools that can be setup and be ready to use in couple of clicks. Lets have a look.

  1. Dead Simple Screen Sharing – I have kept Dead Simple Screen Sharing on top of our list because it is one of the simplest way to share the screen. One can access their website by following url Dead Simple Screen sharing supports audio/video right from your browser.

How to share screen using Dead Simple Screen Sharing

Step 1: Click the ‘Share your Screen Now’ button to create the screen sharing session and click on the “Allow Microphone”

Step 2: Install the chrome extension by clicking the install extension button. Extension is only required on Google Chrome, in Firefox you can do screen sharing without the extension

Step 3: A popup will appear that will ask you to select the screen you want to share. You can share your entire screen or an application window.

Step 4: Your screen is now being shared, you can invite participants by sharing the ‘Invite URL’ or using email

2. Web Whiteboard – Although, this is not a screen sharing tool however it is considered one of the simplest and easy to use Whiteboard to draw and write together online instantly. There is no installation or tutorial required to get started with Web Whiteboard. Passwords and accounts are entirely optional. Just create an online whiteboard with one click, and share it live by sending the link to people.

How to use Web Whiteboard

Step 1: Access Web Whiteboard by opening following URL in to your browser:

Step 2: You will get option to either Signup, login or Create free whiteboard. Select as per your requirement.

Step 3: If you opt to signup, the cost is $8 per month. However if you go for a free Whiteboard, it will last for 21 days.

Step 4: Once your free whiteboard is ready, you can share the URL at the top of your browser to other people you want to join you. The URL will look somewhat like

Step 5: The whiteboard can be accessed from any browser in PC, Laptop, Tablets or Mobile phones.

3. HelloAiko Meet – This is again a simple and free tool preferred for video conferencing. The tool is free forever and do not require you to provide any credit card details. ‘Aiko Meet’ adds the power of cutting-edge Artificial Intelligent to a convenient, browser based video conferencing solution. Aiko Meet works entirely in your browser, without any extensions or installations. Aiko Meet uses TLS, the current standard in secure communications, to ensure that your conversations remain totally private

How to use Hello Aiko Meet

Step 1: Access ‘Hello Aiko Meet’ by typing following URL into your browser:

Step 2: On the page that opens, click on ‘Get Started’

Step 3: If you are a new user, you need to create a one time login account by clicking on “Signup” button and providing a user name and password. If you are an existing user, you use to “Signin” at the top right of the page.

When you signup for the first time, a room is also created for you that can be used for video conferencing services.

Step 4: Once you are login and ready, on the left hand side menu, you get options like ‘Add a Team Member’, ‘Integration with your domain’, ‘Settings’ etc.

Step 5: On the top left, there is an option to go to room. Once you click on this button, you can enter the Video Conferencing Room dedicated for you. Once inside your room, you will also get a link to your room that you can share with your participants. When a participant joins in, You receive a notification to accept or reject the request.

Step 6: on the bottom of your meeting room, you see several controls like mute/un-mute microphone, stop/start your video, share your screen, chat window etc.

Finally, hope these three free tools will definitely going to help you in your day to day work. Feel free to share your experience about the same and comment on the post.