This tool uses serveo.net hosting, which is located in Europe, so there may be problems with connection in other continents.
If the tool doesn't work, we have an alternative.
«make tunnel».
#for ubuntu
sudo apt-get install wget
sudo apt-get install openssh
sudo apt-get install python3-pip
wget https://raw.githubusercontent.com/mishakorzik/open-port/main/install.sh
bash install.sh
#for debian
sudo apt install wget
sudo apt install openssh
sudo apt install python3-pip
wget https://raw.githubusercontent.com/mishakorzik/open-port/main/install.sh
bash install.sh
#for termux
pkg install wget
pkg install openssh
pkg install python3-pip
wget https://raw.githubusercontent.com/mishakorzik/open-port/main/install.sh
bash install.sh
./open-port