Install shellinabox by entering the following commands in the terminal:
sudo apt update sudo apt install shellinabox
Description:
publish command line shell through AJAX interface
Shellinabox can export arbitrary command line programs to any JavaScript enabled web browser. By default, it prompts for username and password and then exports a login shell. Shellinabox provides a VT100 compatible terminal emulator that runs within any modern browser. Support for HTTPS protocol (SSL/TLS encryption) is optional and requires installation of openssl.
Homepage: http://shellinabox.com
Version: 2.20build1
Section: universe/web