===== Webmin =====
For simply management OS
<code bash>
wget https://raw.githubusercontent.com/webmin/webmin/master/setup-repos.sh
sh setup-repos.sh -f
apt-get install --install-recommends webmin
</code>

Edit webmin config
<code bash>
nano /etc/webmin/miniserv.conf
</code>

Setting port & disable ssl via change next
<code bash>
ssl=0
port=8000
</code>

Apply changes
<code bash>
systemctl restart webmin
</code>

Open firewall

NFTables 
<code bash>
nft add rule inet filter input ct state new tcp dport 8000 counter accept comment "WEBMIN"
</code>

Open http://[Host_ip]:8000/ in your browser & log in with your system credentials – username & password.