Software Engineering

Rohit Patra July 20, 2024 No Comments

How to prevent “+”, “-“, “e”, “E” character in input “type=number”

When we use <input type="number"> in HTML form, it can accept some special characters also like +, -, e, E etc. If you don’t need…

Sushovan Mukherjee July 20, 2024 No Comments

How to handle CNAME flattening problem for APEX Domains

You might have heard many DNS providers don’t support CNAME flattening for root (APEX) domains. Now, there are many questions: What’s the problem? It’s good.…

Sushovan Mukherjee July 17, 2024 No Comments

Where to store SSH key in Azure

You can create an SSH key pair with SSH keys from the Azure portal. However, it will save only the public key, not the private…

Sushovan Mukherjee July 16, 2024 No Comments

jQuery – .attr() vs .prop()

jQuery .attr() and .prop() both are almost same with some differences. With .attr() you can get or set the HTML attribute. With .prop() you can…

Sushovan Mukherjee July 16, 2024 No Comments

US and Canada ZIP code validation with JavaScript

I have copied it from my code, please feel free to change it as required. let usZipPattern = new RegExp("^\\d{5}(-{0,1}\\d{4})?$"); let caZipPattern = new RegExp(/([ABCEGHJKLMNPRSTVXY]\d)([ABCEGHJKLMNPRSTVWXYZ]\d){2}/i);…

Sushovan Mukherjee July 14, 2024 No Comments

How to create a docker project with PHP-8.3 MySQL-8.0 Apache with SSL

Creating a Project Architecture is an art. There are many ways to make a docker project. I am adding the best approach I have found…

Sushovan Mukherjee July 14, 2024 No Comments

How to stop author scanning on WordPress site

Author scanning is very helpful for hackers for DDoS and Brute-Force attacks. We should stop it if we are using a WordPress site. Normally we…

Sushovan Mukherjee July 14, 2024 No Comments

How to create a docker project with PHP-5.6 MySQL Apache with SSL

Creating a Project Architecture is an art. There are many ways to make a docker project. I am adding the best approach I have found…

Sushovan Mukherjee July 10, 2024 No Comments

Cannot find how a page is redirecting?

When we debug JavaScript, sometimes we cannot find how a page redirects to another page. Normally, it happens when we have lots of JavaScript involved…

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