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I tried to install webmin to my 18.04 erver. i folloved DigitalOcean 's method.
When i did
sudo apt install webmin
The outpu was like:
Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: webmin : Depends: libauthen-pam-perl but it is not installable Depends: apt-show-versions but it is not installable E: Unable to correct problems, you have held broken packages.
Thank you all your answes, Peter