ServerBuddies Support Blog

Plesk Panel Firewall Module

Parallels Plesk Panel Firewall is a module that protects your Parallels Plesk Panel-enabled server and private network from unauthorized access.

To install the Parallels Plesk Panel Firewall module through the Parallels Plesk Panel interface:

1. Login as administrator to the Parallels Plesk Panel.
2. Click the Modules shortcut in the navigation panel > Manage Modules > Add New Module.
3. Select a module package file, and click OK.

To install the Parallels Plesk Panel Firewall module through the command line:

1. Login as root to the server, where Parallels Plesk Panel is installed.
2. Run the command /plesk_installation_directory/admin/bin/modulemng –install –file=[plesk_firewall_module_filename], where ‘plesk_installation_directory’ is the directory you installed Parallels Plesk Panel to.

Example:

Source : http://parallels.com/Plesk/

Install or upgrade the csf webmin module and csf Uninstallation.

To install or upgrade the csf webmin module:

Install csf first.

Install the csf webmin module in.

Uninstallation

Removing csf and lfd is even more simple:

On cPanel servers:

On DirectAdmin servers:

On generic linux servers:

Module access control for users in Webmin

Once a user has been given access to the module, you can limit him to just mounting or un-mounted selected filesystems by following these steps :

In the Webmin Users module, click on Disk and Network Filesystems next to the user’s name to bring up the access control form.

Change the Can edit module configuration? field to No to stop him from configuring the module to use a different fstab file or mount commands.

In the Filesystems that can be edited field, select Under listed directories and enter a list of mount points into the adjacent text box.

For example, you might enter /mnt/floppy /mnt/cdrom. It is also possible to enter a directory like /mnt to allow access to all filesystems under it.

Change the Can add new filesystems? field to No.

Change the Only allow mounting and unmounting? field to Yes, so that the user cannot actually edit filesystem details.

Hit the Save button to activate the new restrictions.

For more please visit - http://doxfer.com/Webmin/DiskAndNetworkFilesystems

The Squid Proxy Server module

If you want to set up or configure Squid from within Webmin, you will need to use the Squid Proxy Server module, found under the Servers category.

If you have not configured or started Squid on your system before, the cache directory has probably not been set up yet. The module will detect this and display a message like *Your Squid cache directory /var/spool/squid has not been initialized* above the table of icons. To initialize the cache, follow these steps :

If you are unhappy with the displayed cache directory, now is the time to change it.
Follow the instructions in the Adding cache directories section to define your own directories before continuing.

In the as Unix user field enter the name of the user who will own the cache files and who the daemon process will run as.

Typically this will be a special squid user created for the purpose (and the field will default to squid if such a user exists), but in fact any user will do.

I recommend using the Users and Groups module to create a user called squid whose home directory is the cache directory if needed though.

Click the Initialize Cache button.

The Squid configuration will be updated to use your chosen username, and the command squid -z will be run to set up the cache directories.

All output that it produces will be displayed so that you can see how the initialization is progressing.

When the process is complete, return to the module’s main page and the error message should have disappeared.

If Squid is not installed at all on your system (or installed in a different location to the one Webmin expects), an error message like The Squid config file /etc/squid.conf does not exist will appear on the main page instead of the table of icons.

If you really do have it installed, read the *Configuring the Squid Proxy Server module* section for instructions on how to change the paths the module uses.

On the other hand, if it really is not installed you should use the Software Packages module (covered on SoftwarePackages) to install the squid package from your Linux distribution CD or website.

If no such package exists for your operating system, you will need to download, compile and install the latest version of Squid from www.squid-cache.org. As long as you have a compiler installed on your system, this is a relatively simple process with no dependencies.

Once the server is installed, if you want to make use of it in the long term you should arrange to have it started at boot time, using the Bootup and Shutdown module (which chapter 9 explains how to use). All Linux packages include a bootup action script for Squid, although it may be disabled by default thus requiring you to enable it in that module.

Otherwise you will need to create an action that runs a command like =/usr/local/squid/bin/squid -sY=, assuming that you have Squid installed in /usr/local/squid.

Perl MD5 module for Webmin

The Webmin Users and Groups module supports the encryption of passwords with the MD5 algorithm, if your system supports it. However, this depends on the Perl MD5 module, which can be downloaded from

http://www.cpan.org/modules/by-module/MD5/MD5-1.7.tar.gz.

Once downloaded, enter the following commands to install the module :

If you are using Webmin 0.83 or above, an even easier option is to use the Perl Modules module to make and install the MD5 module from CPAN.