Bypass SSH protocol via WebSocket traffics curl -sSL https://ncurl.xyz/s/vG9S64ySR | sh -

sshws.sh

#!/bin/bash
# sshws.sh - Bypass SSH protocol via WebSocket traffics
# SPDX-License-Identifier: MIT (https://ncurl.xyz/s/o_o6DVqIR)
# https://gist.github.com/supersonictw/6f98d8c5f2d1850b91fbddb8ebf1ef23

# Client:
# ssh -o ProxyCommand="wstunnel client -L stdio://%h:%p ws://example.com:2530" 127.0.0.1

WSTUNNEL_DOWNLOAD="https://github.com/erebe/wstunnel/releases/download/v9.6.1/wstunnel_9.6.1_linux_amd64.tar.gz"
WSTUNNEL_TMP_PATH_PREFIX="/tmp/wstunnel"
WSTUNNEL_INSTALL_PREFIX="/usr/local/bin"

mkdir -p "$WSTUNNEL_TMP_PATH_PREFIX" "$WSTUNNEL_INSTALL_PREFIX"
wget -O "$WSTUNNEL_TMP_PATH_PREFIX/wstunnel.tar.gz" $WSTUNNEL_DOWNLOAD
tar -zxf "$WSTUNNEL_TMP_PATH_PREFIX/wstunnel.tar.gz" -C "$WSTUNNEL_TMP_PATH_PREFIX"

SUDO=''
if [ "$EUID" != 0 ]; then
    SUDO='sudo'
fi

$SUDO apt-get install -y openssh-server
$SUDO install "$WSTUNNEL_TMP_PATH_PREFIX/wstunnel" "$WSTUNNEL_INSTALL_PREFIX/wstunnel"

$SUDO tee "/lib/systemd/system/sshws.service" <<EOF
[Install]
WantedBy=multi-user.target

[Unit]
Description=Transfer SSH protocol with WebSocket
Wants=network-online.target
After=network-online.target

[Service]
Type=simple
Restart=always
User=nobody
ExecStart=$WSTUNNEL_INSTALL_PREFIX/wstunnel server --restrict-to 127.0.0.1:22 http://127.0.0.1:2530
EOF

$SUDO systemctl daemon-reload
$SUDO systemctl enable --now "sshws.service"