Can I run Usermin under Apache?

Written by Joe Cooper
Yes, this can be done with some configuration. See this page for instructions.

Note that you don't need Apache (or any other standalone webserver) to run Usermin. Usermin includes its own webserver called miniserv.pl. There is no benefit to running Usermin under another web server in the vast majority of environments.

In Usermin's MySQL Database module, how can I restrict the databases that each user can see and use?

Written by Joe Cooper
By default the module will list all of the databases on your system on the main page, even if some are not actually usable by the logged-in user. To change this, follow these steps :

• Login to Webmin on the same server, and enter the Usermin Configuration module.
• Click on Usermin Module Configuration.
• Click on MySQL Database in the list.
• In the Database access control list field, remove the existing *: * line and enter one line per user, containing the username, a colon and list of databases he is allowed to use. For example, you could enter :

  jcameron: database1
  fred: database2 database3
  joe: *
  

  A * in the database column means all databases, while a * in the username column means any user not listed so far.
• Hit the Save button to activate the restrictions.

Usermin sends mail with the wrong From: address, how do I fix it?

Written by Joe Cooper
In most cases, if Usermin webmail does not include the correct From: address, it is incorrectly configured. The default was not being set correctly in our automated installer until recently due to a bug.

The old default would default to a From: address of the form “user-domain@hostingco.tld”, when it should instead be “user@domain.tld”.

To correct this problem:

Browse to Webmin:Usermin Configuration:Usermin Module Configuration:Read Mail page

Locate the option labeled From: address mapping file, and set it to /etc/postfix/virtual

Locate the option labeled Address mapping file format, and set it to Address to username (virtusertable)

Save it.

What is the license of Usermin?

Written by Joe Cooper
Usermin is licensed under a BSD-like license, and is available for free from here at Virtualmin.com and at the Webmin project site at SourceForge. It is a completely Open Source project.

What is Usermin?

Written by Joe Cooper
Usermin is the least-privileged tier of the three tiered system that includes Webmin, Virtualmin and Usermin. Usermin provides web-based email, spam filter configuration, and optional access to advanced user account features like mail forwarding, vacation auto-responding, PostgreSQL and MySQL databases, and a powerful Java File Manager applet.

With Usermin, you can allow your users to maintain their own account, including changing passwords, managing files in their home directory, and more. The key to Usermin's power, however, lies in its limitations. With Usermin, one does not have to think about whether the user has too many privileges. A Usermin user has only the privileges of the logged in user, and cannot override those privileges in the same way as Webmin and Virtualmin can. If you trust a user enough to give them an email account, you can trust them enough to give them a Usermin account.