Webmin is a modular web-based administration tool that works on a wide variety of Linux versions and other Unix and Unix-like operating systems. It enables you to log in via a web page and perform administration tasks. Webmin then “does the right thing” and makes the necessary appropriate changes to configuration files.
Webmin is included in the SUSE Professional distribution and works well with SUSE, even on SLES. In some ways Webmin competes with YaST as a user-friendly system administration tool. In fact, it does some things well that YaST does not yet do, or does not yet do well.
Webmin’s philosophy differs from that of YaST. YaST tends (for many purposes) to make changes in a two-stage process, first changing files under /etc/sysconfig and then carrying those forward to changes in the actual configuration files later when SuSEconfig runs.
Webmin writes directly to the configuration files.