webmin does not consume that much disk space, if memory serves me right, its much less then 100MB's installed. However webmin is a "control panel" it still uses the OS, any and all components, plugins, updates, servers (Web, FTP, DNS) and more.
If your just looking for raw space, the rpm is a 14MB download.
then I dont know how it is using 180 GB of my disc when it should use only 1 GB,my server is empty I dont know in which other thing the other 179GB are being used thank you bro
it might be my host made a partition for his stuff