qterminal VS shellinabox

I know this can be done easily in terminator. But terminator installation is not an option in this case. I'm on different system where the only terminal available is QTerminal.

Following up on the weird gear running Pi-hole posts; I refined things a bit further and have created a universal 'Pi-hole for Android' disk image. It should run on ANY ARMv7 or newer Android box ever made, from Kernel 3.0 (2010-ish) to current. When the image is launched, It performs gateway detection and other checks to populate setupVars.conf. Also used for unattended installation as setup dies in interactive mode. You gain access via web admin, SSH, or qterminal via xRDP. RDC Client in the App/Play Store, Windows MSTSC.EXE, or Remmina/xfreerdp all work well. Ugly hacks are in the "init" system at /etc/rc.local for your pleasure/disgust. 'sysprep' cleans-up the image and triggers key regeneration for SSH and xRDP at next boot. Ubuntu was my 1st attempt for the base image, but Centos 7 is the only current distro that can live with kernel 3.0 and has recent libraries backported to let Pi-hole work.

QTerminal https://github.com/lxqt/qterminal

QTerminal — Lightweight Qt-based terminal emulator https://github.com/qterminal/qterminal

Is it an alternative to shellinabox ?

https://github.com/shellinabox/shellinabox

Shell In A Box (though it hasn't been updated in a few years)

Remind me of ShellInABox, but Apache Guacamole is probably much better supported.

From the GitHub community, nyxnor did an amazing work to rewrite the support of bridges with pluggable transports (OBFS4, MEEK-AZURE and SNOWFLAKE) to make it easier than ever to circumvent censorship. Also, we experimentally added „Shellinabox“ so that user, who are not familiar with SSH can also access the TorBox Main menu with a web browser. However, we are not completely satisfied with that solution yet because browsers are showing warning messages with the self-signed certificate for a secure connection. We are eager to hear your feedback on “Shellinabox”. Do you know better alternatives? For more details about the latest TorBox Version, check out our Blog Post.

shellinabox — A web-based SSH Terminal https://github.com/shellinabox/shellinabox

It's also possible ports 80/443 are also available to your Windows machine. In which case you might use your NoMachine service to listen on that port. If the firewall is not permissive enough, you can use something like shellinabox to HTTP into the Windows machine and perform administration tasks to disable RDP/endable NoMachine on port 3389.

It looks like Telehack is running a Javascript + CSS kit called ShellInABox to allow web browsers to connect via Telnet. The link they provided in the "about" leads to a malfunctioning webpage, looks to be last updated in 2010. However, that project was forked on GitHub, and the most recent update appears to be Jan 2019, so there is a likely-working copy of that software for allowing for that kind of access.