Linux

Check port exclusion on Windows

These ports are blocked by default if opening from WSL, so either make exception for it or open a new port, for example nodejs port 3000 cannot be open from WSL

 netsh int ipv4 show excludedportrange protocol=tcp
 Protocol tcp Port Exclusion Ranges

Start Port    End Port
----------    --------
      1051        1150
      1151        1250
      1338        1437
      1438        1537
      1538        1637
      1638        1737
      1766        1865
      1938        2037
      2038        2137
      2180        2279
      2280        2379
      2380        2479
      2480        2579
      2699        2798
      2830        2929
      2930        3029
      3030        3129
      3130        3229
      3230        3329
      3430        3529
      3530        3629
      3630        3729
      3757        3856
      3857        3956
      3957        4056
      4057        4156
      4157        4256
      4315        4414
      4466        4565
      4566        4665
      5357        5357
      5426        5426
     50000       50059     *
     54235       54235
     54236       54236

* - Administered port exclusions.
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Swap size vs RAM Linux

RAM Size / Swap Size (Without Hibernation) / Swap size (With Hibernation)
256MB 256MB 512MB
512MB 512MB 1GB
1GB 1GB 2GB
2GB 1GB 3GB
3GB 2GB 5GB
4GB 2GB 6GB
6GB 2GB 8GB
8GB 3GB 11GB
12GB 3GB 15GB
16GB 4GB 20GB
24GB 5GB 29GB
32GB 6GB 38GB
64GB 8GB 72GB
128GB 11GB 139GB

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Install VSCode on Linux Mint using Terminal

sudo apt update
sudo apt install apt-transport-https
curl https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor > microsoft.gpg
sudo install -o root -g root -m 644 microsoft.gpg /etc/apt/trusted.gpg.d/
sudo apt update -y
sudo apt install code -y
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Use locate command to find files in Linux

locate is a very useful command, which can be use from time to time to find files in Linux when we don’t know where that file is. 

sudo apt update
sudo apt install locate
sudo updatedb # need to let sometime for this to finish 
locate .bashrc # locate can be called from anywhere 
locate -c "*thingtosearch" # search by regex, show count
locate -e "*thingtosearch" # search in real-time, regardless db not updated.
locate -i "*thingToSearch" # search and ignore case
locate -S # view locate db                                                           at  10:56:54
Database /var/cache/locate/locatedb is in the GNU LOCATE02 format.
Database was last modified at 2020:10:07 10:38:37.467600124 +0200
Locate database size: 5860142 bytes
All Filenames: 464048
File names have a cumulative length of 34300427 bytes.
Of those file names,

	1317 contain whitespace, 
	0 contain newline characters, 
	and 32 contain characters with the high bit set.
Compression ratio 82.92% (higher is better)
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Install Midori browser using Terminal

Midori is probably one of the most lightweight browser for Linux, sometimes we just need it to quickly search for text information on Google and this is the browser for that purpose. 

sudo apt update
sudo apt install midori
midori
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Install and use Vagrant on Linux for development

sudo apt-get autoremove virtualbox-dkms
sudo apt-get install build-essential linux-headers-`uname -r` dkms virtualbox-dkms
sudo modprobe vboxdrv
sudo modprobe vboxnetflt

Install and use vagrant

sudo apt update
sudo apt install curl
curl -O https://releases.hashicorp.com/vagrant/2.2.10/vagrant_2.2.10_x86_64.deb
sudo apt install ./vagrant_2.2.10_x86_64.deb
## Let's test 
vagrant --version
mkdir vagrant-project
cd vagrant-project
vagrant init centos/8

## If you already have a vagrant image.box
vagrant box add mybox ./image.box
vagrant init mybox
vagrant up
## To ssh into vagrant box
vagrant ssh
## To stop vagrant box
vagrant halt 
## To destroy and clean up everything
vagrant destroy
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Lightshot alternative for Linux

Flameshot is a very good screenshot app, works seamlessly like Lightshot on Windows, let’s install it the easy way: 

## Install using apt
sudo apt update
sudo apt install flameshot
## Quickly bind Print (Prtsc) to flameshot
gsettings set org.gnome.settings-daemon.plugins.media-keys screenshot '[]'
gsettings set org.gnome.settings-daemon.plugins.media-keys custom-keybindings "['/org/gnome/settings-daemon/plugins/media-keys/custom-keybindings/custom0/']"
gsettings set org.gnome.settings-daemon.plugins.media-keys.custom-keybinding:/org/gnome/settings-daemon/plugins/media-keys/custom-keybindings/custom0/ name 'flameshot'
gsettings set org.gnome.settings-daemon.plugins.media-keys.custom-keybinding:/org/gnome/settings-daemon/plugins/media-keys/custom-keybindings/custom0/ command '/usr/bin/flameshot gui'
gsettings set org.gnome.settings-daemon.plugins.media-keys.custom-keybinding:/org/gnome/settings-daemon/plugins/media-keys/custom-keybindings/custom0/ binding 'Print'

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