Linux eMail Server - Mail Transfer Agent (MTA) software. Internet mail is broken down into three basic parts: MTA or Mail Transfer Agents - sendmail, qmail, etc.

Standard Modules. The following modules are included as standard with release 1.850 of Webmin. You can also download and re-install any modules from this page that. Scrollout is a free and easy to use anti-spam email gateway designed for Linux & Windows administrators without advanced email security experience. Linux Dedicated Server Hosting Plans by InMotion Hosting, now with free solid-state-drives. We offer the highest level of speed, security and uptime. This section explains how to set up and manage Imperial College London email.

Webmin Configuration - Webmin Documentation. The Webmin Configuration module exists to allow Webmin itself to be configured, unlike most other modules that are designed to configure some other server or service.

It lets you do things like change the port and Webmin uses, limit the client addresses that can connect, change the theme and language that the user interface uses and install new modules. Head First Pmp Ebook Download more. This chapter explains how to use the module to carry out these tasks. Each of the icons can be clicked on to display a configuration page or form on which some of the Webmin settings can be changed. Even though it is password- protected, you should limit access to only legitimate client systems if possible, so that an attacker from outside your network cannot even attempt to login. The steps to follow to do this are.

Click on IP Access Control on the module's main page to bring up the access control form. Networks should be entered with a netmask like 1. To change this check the *Resolve hostnames on every reques*t box, and it will convert hostnames to IP addresses for comparison for every request.

This can happen on a network using DHCP, or if you are connected to an ISP that dynamically assigns addresses. The service name to use when editing those files is webmin. Ports and Addresses. Ports and Addresses. Webmin usually listens for connections on port 1. IP addresses. You may need to change the port though, perhaps because a firewall on your network only allows connections to web servers on the standard ports of 8.

Because port 1. 00. Webmin to be shut down and then start his own fake Webmin server on that part, which could capture the admin or root password. For this reason you may want to use a port below 1. Changing the listening IP address can also be useful if your system has multiple network interfaces and you want to only allow connections on the interface connected to the internal LAN. This must be the address of one of your host's real or virtual interfaces.

Your browser will be re- directed to the new port and address, and you may need to login again. Logging. Logging. Like most web servers, Webmin can be configured to create a log file in the standard CLF format the records every request it receives. As well, it also creates a log of actions performed by users, such as the creation of a DNS zone or the deletion of a Unix group. This actions log can even include the details of every file changed and command run by each action, so that you can see what Webmin is doing under the hood. However, you should choose Enable logging to activate it.

To enable this feature, select the Clear logfiles every box and enter a number of hours into the adjacent text field. This can be handy if most of your users can only perform tasks that you don't care much about, and you want to log only actions taken by the more powerful administrators instead. This will take up more disk space, but provides some very useful and interesting information. The Webmin Actions Log module explains how to search for and view actions once you have enabled their recording here.

This can be useful for finding out who did what on your system if you have multiple administrators with access to the server. For example, the Software Packages module lets you enter a URL to fetch and install a new package from. Normally Webmin will connect directly to the host specified in the URL, but it can be configured to use a proxy server instead. This may be necessary if your network does not allow direct access to web and FTP sites, but instead forces clients to connect through a proxy. Any proxy configuration will also apply to RPC calls, although not to direct TCP connections used by the RPC protocol when in fast mode or when transferring large files.

Because any other Webmin servers are likely to be on the same network, you will probably want to disable the user of a proxy for those hosts. If None is chosen, no proxy will be used. This specified server will also be used for HTTPS connections by making CONNECT proxy requests, so make sure that it supports and allows them.

Usually this will be the same as the HTTP proxy. For example, you might enter . You can change them by following these steps . On the module's main page, click on the User Interface icon to bring up the interface options form. For each you can either select Default, or enter three hexadecimal numbers for the red, green and blue components of a color. For example, FF 8. These options have no effect on the new default theme though.

Because this can make the page slow to download, you can force the use of plain HTML text titles instead by changing the Display titles as text? To have it shown elsewhere or turn it off altogether, select one of the following options from the Display login and hostname menu : *At bottom of browser *The information is shown in the browser's status area, which is usually at the bottom of the window. If you are worried about un- trusted users learning too much about your system, this is the option to choose. When using the default theme, every page in Webmin has a link in the top- right corner for sending feedback to the developer.

However, you may want to configure it so that feedback is sent to the master system administrator instead, so that other users can contact you. To do this, enter your email address in the Send feedback to field and change the *Allow sending of feedback?* field to Only to address above. The sending of feedback can be completely prevented by selecting No in the latter field instead. Webmin Modules. Webmin modules Install/Clone/Delete/Export. As the first chapter of this book explains, Webmin is essentially collection of modules, each of which performs some task such as configuring Apache or managing Unix users. A module can be. added or removed without effecting the operation of others, assuming that they do not depend upon it. Even though the main Webmin distribution includes 7.

This is a searchable database of modules and themes that perform tasks the core modules do not, such as managing the Free. BSD firewall, displaying system information and connecting to a VNC server. This will bring to you to a page with forms for installing, cloning and deleting modules.

If you have already downloaded the module's . Webmin is running, select From local file and enter the full path to the file into the text field next to it. Alternately, if the module file is on the PC that your web browser is running on, select From upload file and use the Browse button to find the file on your computer. To prevent this, check the Ignore module dependencies when installing box. However, this may allow the installation of a module that will not work. It will not allow you to add modules that do not support the server's operating system though.

To control who this new module will be granted to, select the Grant access only to users and groups option and enter a list of Webmin user and group names into the adjacent text box. By default only the user that you are currently logged in as is listed. Alternately you can give it to every user and group by choosing Grant access to all Webmin users. Hit the Install module from file button to download (if necessary) and install the new module. If everything goes OK a page listing the modules installed and the sizes of their directories will be displayed. Webmin comes with a script called install- module. If you have installed the RPM version, this will be /usr/libexec/webmin - otherwise it will be wherever the tar.

This script can be used to install a module from the command line, by passing the . It will be granted only to the root or admin user if one exists, or the first account listed in the Webmin Users module otherwise. Deleting the default modules is not a good idea though.

Instead it is better to take away access that you don't want to use with the Webmin Users module. Not all modules can be deleted either, as some are depended upon by other modules (such as Running Processes). Nor is it possible to delete this module.