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SSH for Android

SSH on Android

Step by step

  • Install F-Droid app from Internet
  • Install Termux app from F-Droid
  • Install openssh binary from Termux
    • Open a Termux window
    • Run the following 
      pkg upgrade
pkg install openssh

Usage

  • Start the SSH server
    (Default SSH port in Termux is 8022) 
    sshd
  • Stop the SSH server 
    pkill sshd

Configuration ADB/SCRCPY via wireless

Android device v10+ must be paired first to work by wireless.

  • Settings/Developer Options/Wireless debugging
  • Choose "Pair device with pairing code"
  • Use displayed information to perform pairing on remote machine
    adb pair {android ip address}:{android ip port}

https://developer.android.com/tools/adb#connect-to-a-device-over-wi-fi-android-11+

Setup public key authentication

  • Copy public key
    Use scrpy to copy file locally

    or

    Configure temporary password then copy using ssh-copy-id command:

    whoami
passwd
ssh-copy-id -p 8022 -i {id_rsa file} {user}@{android ip address}

  • Allow storage access to Termux

    termux-setup-storage

  • Disable password auth in sshd configuration file
    Set PasswordAuthenticationto no in $PREFIX/etc/ssh/sshd_config

    sed -Ei"_ori" 's/[#]?PasswordAuthentication yes|PasswordAuthentication no|g' $PREFIX/etc/ssh/sshd_config

  • Restart service

    kill sshd; sshd

Resources

https://github.com/termux
https://wiki.termux.com/wiki/Remote_Access
https://wiki.termux.com/wiki/Main_Page https://joeprevite.com/ssh-termux-from-computer/ https://github.com/dmdhrumilmistry/Termux-SSH

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