To install webmin on debian 8 just follow this instructions :
cd /root wget http://www.webmin.com/jcameron-key.asc apt-key add jcameron-key.asc echo "deb http://download.webmin.com/download/repository sarge contrib" >> /etc/apt/sources.list echo "deb http://webmin.mirror.somersettechsolutions.co.uk/repository sarge contrib" >> /etc/apt/sources.list apt-get update apt-get -y install webmin
If it’s too long for u, you can also just do this :
wget http://www.christophe-casalegno.com/tools/install_webmin.sh chmod +x install_webmin.sh ./install_webmin.sh