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Setting Up DNS over HTTPS (DoH) Using `cloudflared`

This guide explains how to set up DNS over HTTPS (DoH) on a Linux system using cloudflared. DoH ensures that your DNS queries are encrypted and secure, protecting your online privacy and preventing third-party monitoring of your internet activity.

Go - The Ultimate Folder Structure

Organizing your Go (Golang) project's folder structure can help improve code readability, maintainability, and scalability. While there is no one-size-fits-all structure, here's a common folder structure for a Go project:

project-root/
    ├── cmd/
    │   ├── your-app-name/
    │   │   ├── main.go         # Application entry point
    │   │   └── ...             # Other application-specific files

ARN Base Pattern

arn:<aws_parition>:<aws_service>:[<aws_region>]:<account_id>:<root | resource_type>:/<resource_name>[/<sub_resource_names>...]

i.<aws_partition>

Regex: (aws|aws-us-gov|aws-cn)

ii. <aws_service> - No fixed pattern:

A curated list of AWS resources to prepare for the AWS Certifications

A curated list of awesome AWS resources you need to prepare for the all 5 AWS Certifications. This gist will include: open source repos, blogs & blogposts, ebooks, PDF, whitepapers, video courses, free lecture, slides, sample test and many other resources.

Markdown Text 101

Want to inject some flavor into your everyday text chat? You're in luck! Discord uses Markdown, a simple plain text formatting system that'll help you make your sentences stand out. Here's how to do it! Just add a few characters before & after your desired text to change your text! I'll show you some examples...

What this guide covers:

Text Formatting
Organizational Text Formatting
- Headers
Masked Links

Processing JSON using jq

jq is useful to slice, filter, map and transform structured json data.

Installing jq

On Mac OS

brew install jq

	visible in terminal		visible in file		existing
Syntax	StdOut	StdErr	StdOut	StdErr	file
>	no	yes	yes	no	overwrite
>>	no	yes	yes	no	append

2>	yes	no	no	yes	overwrite
2>>	yes	no	no	yes	append

&>	no	no	yes	yes	overwrite

Variables	Description
ENVIRON	An associative array of environment variables.
FIELDWIDTHS	Specify the field width
FS	The field seperator
RS	The record seperator, default is new line
NF	The number of fields in the current record
NR	The number of the current record
FNR	Similar to NR, but relative to the current file. It is useful when AWK is operating on multiple files. Value of FNR resets with new file.
OFS	The output field seperator, space by default

Operator	Description
! EXPRESSION	The EXPRESSION is false.
condition 1 -a condition 2	CONDITION 1 and CONDITION 2.
condition 1 -o condition 2	CONDITION 1 or CONDITION 2.
-n STRING	The length of STRING is greater than zero.
-z STRING	lengh of STRING is zero (ie it is empty).
STRING1 =/!= STRING2	STRING1 is equal/not-equal to STRING2
INTEGER1 -eq/ne INTEGER2	INTEGER1 is numerically equal/not-equal to INTEGER2

	# To list installed distributions
	wsl -l
	wsl --list

	# To list installed distributions along with its running status and wsl config being 1 or 2
	wsl -l --verbose
	wsl -l -v

	# To run a specific distro
	wsl -d distro_name