I wrote about [how to check which application is using which port](https://veerasundar.com/blog/how-to-check-which-application-is-using-which-port/) a long time ago. I was using command line tools then to find out the ports.

Now after a decade, I am using a much simpler way tp find the ports of my servers running locally.

## Using Resource Monitor to find out port

1. Go to Windows `Start` menu, type in `Resource Monitor` and then open the application.
2. Once opened, go to  `Network` tab.
3. You will see the below window.

![Windows Resource Monitor](/img/resource-monitor-port.png)

The `Resource Monitor / Network` shows all the running process and their corresponding listening ports, along with the number of bytes sent and received by this process.

## Killing a process that's running on specific port

Say if you want to kill an application server that is listening to specific port, but you don't know which application server was it. You can use `Resource Monitor / Network` for this.

For example, I want to kill the node process that's listening on port 3000. In the above screenshot, I can see that the node process with PID 8672 is running on port 3000. Now, I can find this process with PID 8672 in the `Processes with Network Activity` panel at the top and then right click on process name. Now, I will have the option to  either `End process` or `End process tree` which both will kill the current process.

Hope this article helped you to find the application that was running on a port and then kill it if necessary.




How to see which application is using which port in Windows


Notepad is the lightest yet powerful text editor I've ever came across. It's fast, slick and has been my [default text editor][1] for years.

[1]: https://veerasundar.com/blog/notepad-a-cool-source-code-editor

In the past, I've learned/discovered few tips that helped me a lot while using Notepad . In this post, I'm sharing those tips in the hope that it might help someone else too. If you know any other tips about Notepad , please feel free to share.

## 1. Transform your Notepad to a post-it

Re-size the Notepad editor window to the size you want and then **press F12** which will make the text editor to stick on top of all other windows and will hide toolbars/menu bars.

To get back original window, just click on the **Restore** button.

## 2. How to delete a Macro in Notepad

To delete a macro in Notepad , go to **Settings -> Shortcut Mapper -> Macros** and then right-click on the macro name which you want to delete and click **delete**.

## 3. Edit two files side by side in Notepad

Open the two files which you want to edit simultaneously. Right click on any one file's tab and then select **Move to other view** which will split the screen into two for each of the file.

Of course, you can have more than 2 files open at the same time, and you can move any file into any view. Just follow the above said tip.

## 4. Switching between vertical and horizontal split in side by side editing mode

When you edit two files side by side, the files can be split either vertically or horizontally. To switch between vertical Horizontal, right click on the bar which splits the views and then select **Rotate to Left** or **Rotate to Right**.

## 5. Auto close HTML/XML tag

Go to **TextFX -> TextFX Settings -> Autoclose XHTML/XML**. After checking that option, when ever you edit a html or xml file, the tags will be auto-closed as you type.


5 tips that you might not know about Notepad++


Recently one of my colleague asked me the question

> 'I am a Java resource. Is it necessary for me to learn and understand the web design?'

I've seen many newcomers to Java language has been discussing this topic with themselves when they are given training in HTML and web design. For many of those folks, JavaScript is the another name for a nightmare. They just don't understand the necessity for a Java developer to learn HTML. This happens mainly for the people who are switching from a AS400/Mainframe or any other non-web technologies to Java. If these developers are going to design a web site without the proper understanding of web design techniques, they simply fail or got struck even for a simple mistake in the HTML code.

In my opinion, knowledge about (at least in a basic level) HTML/JavaScript/CSS is a must for any Java developer, unless you are completely going to work in Java SE. For all those Java developers, I would like to give some tips from my own experience in reviewing some Java developers page design markup:

- **Close all the HTML tags properly:**
  If all the HTML tags are closed properly (i.e. inner tags are closed first and then the outer) most of the page layout problems will be solved. Most Java developers would be using a CSS written some other web designers and a template HTML page. When they want to modify or add any data to the HTML page, they usually cut and paste HTML tags and forgetting to close them properly. This may affect CSS styling and the page layout may collapse. Properly closing the HTML tags may save lots of HTML debugging time to those Java developers.
- **Never use inline CSS styling / Scripting:**
  This is the frequent mistake I've seen most of the Java developers doing while designing the page. They just embed in the servlet/JSP page itself. Avoid this kind inline definitions. Externalize styling and scripting. It makes the page to be re-designed easily without much effort. and helps us to organize the code better.
- **Learn basics of CSS / JavaScript:**
  By learning this, you need not to wait for a web designer to come and fix your page for a proper layout. Also it helps you to add two more technologies to your resume. ![:-)][1] )
- **Use Firefox and Firebug:**
  I would recommend this combination to a seasoned web designer, but it is also good for the beginners to know about this. Firebug is the best thing that happened to JavaScript ever. With this little Firefox plug-in debugging JavaScript becomes much easier. Inspecting DOM elements also possible in Firebug, so finding out which CSS style affects which HTML element is no longer harder.

Above simple tips, if followed, could save lots and lots of time for a web design beginner.

Would you like to add anything to it? What are your tips / suggestions for a Java developer turned web designer?

[1]: https://veerasundar.com/blog/wp-includes/images/smilies/icon_smile.gif


I am a Java developer. Should I know about DIV ?


Four months back, I had installed Ubuntu on my laptop and completely forgot about that after the installation. Yesterday, when I tried to install Java and Netbeans IDE on Ubuntu, I had to do some admin works, but I dont remember what password I gave for the 'Ëœroot' user during the installation. So, I thought I forgot the root password and I would have to re-install Ubuntu.

But, when searching on the Internet, I came to know that during the installation, Ubuntu do not ask any password for the root user (but I forgot this!). So, by default the root password is set to blanks. So, now I am happy that I don't need to re-install Ubuntu. ![:)][1]

[1]: https://veerasundar.com/blog/wp-includes/images/smilies/icon_smile.gif

But to change the root password in Ubuntu, which blanks by default, follow this step:

1.  Open Terminal/Command
2.  Type **sudo passwd**
3.  Ubuntu will ask you for current user password. Type in the current password and press enter.
4.  Now Ubuntu will ask you to enter the new password for the root. Type in the new password, confirm it again and you are done.PS: It is not possible to log-in as a 'Ëœroot' user. I guess this feature is de-activated in Ubuntu.


#tips (4)