SomajitDey

Uninstall then reinstall WSL on Windows 10 (clean way)

A - Uninstall wsl and related stuff

1. In powershell (as admin)

# list all installed distros
wsl -l -v

# destroy distros
wsl --unregister Ubuntu

SomajitDey

Ref:

• https://learn.microsoft.com/en-us/windows/wsl/networking
• https://superuser.com/questions/1679757/how-to-access-windows-localhost-from-wsl2

WSL2 to Windows

1. Obtain the IP address of your host machine (Windows) by running this command from your Linux distribution:

cat /etc/resolv.conf

SomajitDey

###AnyDesk - How Enable Remote Access from ubuntu/debian terminal.

Note:

Here are the commands might be usefull in this purpose:

• anydesk --get-status : To get current status of anydesk, which might be offlien,online or nothing.
• anydesk --get-id : To get the ID that your system can be accessed by.
• anydesk --service : To start anydesk service if not already running (for Linux).
• anydesk --restart-service : To restart anydesk service
• anydesk --stop-service : To stop anydesk service

SomajitDey

die() { echo "$*" >&2; exit 2; }  # complain to STDERR and exit with error
needs_arg() { if [ -z "$OPTARG" ]; then die "No arg for --$OPT option"; fi; }

while getopts ab:c:-: OPT; do
  # support long options: https://stackoverflow.com/a/28466267/519360
  if [ "$OPT" = "-" ]; then   # long option: reformulate OPT and OPTARG
    OPT="${OPTARG%%=*}"       # extract long option name
    OPTARG="${OPTARG#$OPT}"   # extract long option argument (may be empty)
    OPTARG="${OPTARG#=}"      # if long option argument, remove assigning `=`
  fi

SomajitDey

# Disable all of make's built-in rules (similar to Fortran's implicit none)
MAKEFLAGS += --no-builtin-rules --no-builtin-variables

# Fortran Compiler
FC := gfortran

# The following must have non-empty value if OpenMP is required
OMP :=

# The following must have non-empty value if Debugging compiler options are required

SomajitDey

• Give your Personal Access Token (PAT) access to workflow.
• Put the accompanying build.yml inside .github/workflows path inside your repository. Edit it as required. You may check the validity of the yaml file online.
• On top of your repository's README.md, put the following badge:

[![CI Build Status](https://github.com/<OWNER>/<REPO>/actions/workflows/build.yml/badge.svg)](https://github.com/<OWNER>/<REPO>/actions/workflows/build.yml)

• Add, Commit and Push
• See results of GitHub Actions @ https://github.com///actions/workflows/build.yml

SomajitDey

How to use Anydesk to connect to remote network with low bandwidth usage

Anydesk is usually used for accessing remote desktop, viz. the entire GUI shell. This, however, uses a lot of data. If one wants to simply run commands remotely, then it's more efficient to use SSH by using Anydesk's TCP tunneling feature. TCP tunnelling also gives access to remote's network provided a SQUID web proxy is running @ remote, thus setting up a VPN effectively. Anydesk offers only one TCP tunneling in its FREE license.

To set up SSH, for example, to a Remote Linux server do the following:

1. Setup Anydesk server in remote. Make sure Create TCP tunnels is checked in Settings > Permissions.
2. Open Anydesk client in your Windows computer.
3. Sign in to your Anydesk Account, otherwise TCP tunneling would be greyed out.

SomajitDey

Letting Ubuntu bash on Windows 10 run 'ssh -X' to get a GUI environment on a remote server

• First

Install all the following. On Window, install Xming. On Ubuntu bash, use sudo apt install to install ssh xauth xorg.

sudo apt install ssh xauth xorg

SomajitDey

• Sudo without password
• Setup necessary aliases in your server's .bashrc
  • alias x="nautilus ${PWD}" ; so that file explorer opens in current directory with command x
  • alias ls="ls -lt"
• Seup git config name and email at your server
• Setup terminal preferences
• Networking
  • Expose server with tunnel. Make use of cron: crontab -e > @reboot tunnel -l /tmp/tunnel.log 22 and */1 * * * * tunnel -l /tmp/tunnel.log 22. Use tunnel because it is more or less portable and doesn't require sudo priviledge. Just install a portable socat in the same directory as tunnel (e.g. ~/.bin), if needed.
  • At your home-pc/laptop (client) setup a cronjob or add to ~/.bashrc : flock -n /tmp/tunnel.log tunnel -b <port> -l /tmp/tunnel.log <server-kid>:22

SomajitDey

# NOTE: You may simply put this config file inside /etc/ssh_config.d directory.
# Ref : https://www.howtogeek.com/75007/stupid-geek-tricks-use-your-ssh-config-file-to-create-aliases-for-hosts/
# To create ssh-keys easily use `ssh-keygen` @client followed by `ssh-copy-id server`
Host <alias>
  User <uid>
  HostName <ip or hostname>
  Port <port>
  IdentityFile <~/.ssh/your_saved_key> # for passwordless login
  ServerAliveInterval 120
  ServerAliveCountMax 30