I was able to get VMWare software for testing purposes and decided to give VMWare Workstation a try. I normally use and am a big fan of Virtualbox. My initial reaction is that I like VMWare Workstation a lot. I downloaded and installed VMWare Workstation 9 for Linux on my Ubuntu 12.04 system running on a Macbook Pro. The installation went without a hitch, though after the first update, post installation, I was required to enter my license code again. This was a minor annoyance.
I wanted to simulate a configuration consisting of a firewall with two network interfaces and a single client operating system. I chose pfSense for the firewall and Windows 7 Professional for the client.
Antivirus for Linux sounds unnecessary
due to the low probability of Linux being infected by a virus.
However because Linux can communicate and share files with Windows,
antivirus is another piece of software that will prevent the spread
of malware between Windows clients where Linux could be the conduit.
ClamAV is included in most Linux
distribution repositories. ClamAV is, “...designed especially for
e-mail scanning on mail gateways. It provides a number of utilities
including a flexible and scalable multi-threaded daemon, a command
line scanner and advanced tool for automatic database updates.”
Even though ClamAV is designed for mail gateways, to scan incoming
e-mail, there are tools to manually scan media for viruses. Normally
a systems home folder, which contains the users home directories, or
shared folders like SAMBA shares with Windows clients are scanned on
a schedule. ClamAV is not normally used to scan the complete
filesystem of a Linux machine. This in conjunction with Windows
antivirus software will helpfully prevent any malware outbreaks in
your home or organization.
(Small Office/Home Offices) traditionally either had client-server or
peer-to-peer networking in place to serve office needs. Client server,
the more expensive option, have the benefit of centrally managed network
resources. While peer-to-peer, though less costly and easy to setup, become difficult to manage as the network grows.
low cost NAS (Network Attached Storage) devices, many SOHO’s can bypass
using a centrally managed server and use a simpler configuration for
storing data. Deciding when to use a NAS or when to use a server
depends on the office needs.
When to use NAS
devices are a cost effective and simple way to manage user storage.
There are several different NAS manufacturers and models to choose
from. Each model will also have different features, like the number of
USB ports, upgradability and printer support. Network services provided
by the NAS, like FTP (File Transfer Protocol), Windows Shares,
Workgroups and NFS (Network File Sharing) protocol also vary.
VirtualBox is a great tool for testing operating systems, whether for testing a different distributions or simulating a network configuration. What follows is my experience installing and configuring Fedora 17 on my notebook running Ubuntu 12.04 LTS.
First off, this pseudo tutorial assumes a few things are in place. The Ubuntu Desktop is installed and running with VirtualBox installed, and the Fedora 17 ISO has been downloaded. Though my notebook has a 64-bit processor, it does not have the virtualization extensions; something I didn't verify before purchasing back in 2008. So, even though I'm running the 64-bit version of Ubuntu 12.04 LTS, I'm running the 32-bit version of Fedora 17 in a virtual machine.
On a recent podcast episode a listener wanted to know if there is "junk" in .rar and .tar files. I don't deal with .rar files very often, and usually .tar files are the normal way to distribute programs in source format for compiling and installing.
What are .rar and .tar files? RAR  is a proprietary archive and compression format. I don't believe much software for Linux is distributed in RAR format. If RAR is used to distribute files, there probably are not many non-essential files. TAR  is a program that archives files and Linux software is often distributed in this format. TAR is also used for backing up systems and other backup programs often use tar . One note, TAR does not compress archives by default, but can compress and uncompress archives with options to the TAR command.
SME Server (http://www.contribs.org/) is a Linux distribution designed for the office environment, similar to Microsoft Small Business Server or the now defunct Linux based NetMax Server. SME Server is managed through a web interface and provides file and print sharing, E-mail server and web client, Firewall, Directory Services, Web hosting and other services. It is also extensible via Contribs. Contribs are software packages that are designed to add extra functionality to SME Server.
This document will explain how to setup a test network environment on Vista using Virtual Box with SME Server and Windows XP Professional guests. I chose Windows XP Professional, because that is the environment I have found that most business or educational intitutions are using. This document already assumes that VirtualBox is installed and working and that the Windows XP Professioanl guest is installed in VirtualBox.
The default installation of Ubuntu Server is non-graphical, the server is managed from the command line. Reasons for this type of installation are security and elimination of resource heavy GUI's (Graphical User Interface's). On some installations, the system management ease of a GUI makes life a little easier for the system administrator. It is possible to install the web based system management tool without the GUI. This method will allow you to use those tools locally on the server without using a separate computer on the network.
Tools to be installed are a lightweight window manager, a method of locking the screen, web based system management software, web browser and a light weight file manager.