Welcome to the Ubuntu Server Guide! Here you can find information on how to install and configure various server applications. It is a step-by-step, task-oriented guide for configuring and customizing your system. This guide assumes you have a basic understanding of your Ubuntu system. Some installation details are.
SMBs and ITCAbout 99% of companies in the world are small and medium businesses (SMBs). Theygenerate more than half of the global GPD. SMBs constantly look for ways to reducecosts and increase productivity, especially in times of crisis like the one weare currently facing. However, they often operate under very limited budgets andlimited workforces. These circumstances make it extremely challenging to offersuitable solutions that bring important benefits, at the same time keeping investmentsand operational costs within budget.Technology vendors have traditionally shown little interest in developing solutionsthat adapt to the needs of SMBs. Zentyal: Linux server for SMBsZentyal was developed with the aim of bringing Linux closer to SMBs andto allow them to make the most of its potential as a corporate server.
It is the opensource alternative to Microsoft network infrastructure products aimed at SMBs (WindowsSmall Business Server, Windows Server, Microsoft Exchange, Microsoft Forefront.) andit is based on the popular Ubuntu distribution. Zentyal allows IT professionals tomanage all network services such as Internet access, network security, resourcesharing, network infrastructure or communications in an easy way via one singleplatform. During its development, the focus has been the usability.
Zentyal offers anintuitive interface, that includes the most frequently needed features. Althoughthere are other, some more complex, methods used to carry out all kinds of advancedconfigurations. Zentyal incorporates independent applications into fullyintegrated functions automating most tasks.
In case that small and medium businesses want to count on support from a local ITprovider to deploy a Zentyal-based system, they can contact Authorized Zentyal Partners.These partners are local IT support and service providers, consultants or managedservice providers that offer consultancy, deployment, support and/or outsourcing ofinfrastructure and network services of their customers. To find the closest ZentyalPartner, or to learn how to become a partner, please visit the Partner section atzentyal.com.Zentyal S.L. Offers to the Authorized Zentyal Partners a series of tools and servicesthat help at reducing the maintenance costs of IT infrastructure of their customersand offering managed services with high added value:. Support platform. Remote monitoring and management platform of servers and desktops.
Training and certification of technical and sales staff. Managed services portfolio. Sales materials. Lead generation program. Discounts. 3This documentation describes the main technical features of Zentyal, helping you tounderstand the way you can configure different network services with Zentyaland become productive when managing SMB ICT infrastructure with Linuxbased systems.The documentation is divided into six chapters plus some appendices. This first introductorychapters helps to understand the context of Zentyal as well as the installation processand walks you through the first steps required to use the system.
The following four chapters introduce you to thefour typical installation profiles: Zentyal as a network infrastructure server, as aserver giving access to the Internet or Gateway, as anoffice server or as a communications server. This differentiation into four functional groupsis only made to facilitate the most typical Zentyal deployments.
It is also possible todeploy any combination of Zentyal server functionality.Finally, the last chapter describes the tools and services available to carry outand simplify the maintenance of a Zentyal server, ensuring its smooth running,optimising its deployment, resolving incidents and recovering the system in case of adisaster.
In this tutorial you will see how to set up a Zentyal Server to act as a gateway in avery common scenario. Zentyal will provide basic network infrastructure, load balancingbetween two Internet providers, firewall and HTTP proxy caching andcontent filtering. All these steps are well explained in the, which is a really recommended reading. The following example network layout is used:2. InstallationZentyal runs on top of page for more information. There are two ways to install Zentyal:. Using Zentyal installer that you can from the.
This is the recommended choice, it includes all package dependencies for offline install and also makes some custom configuration. Install on top of a working Ubuntu Server, you can find detailed info and URL for the repository in the.If you install Zentyal using the installer you will see this screen when booting from CD-ROM and a couple of wizards will guide you through the process.
You can choose default settings in all of them.Zentyal provides a web administration interface, after the installation a Firefox browser will show up giving you access to it (you can also access Zentyal from any client browser typing: User and password are the same you entered during installation.Now you can select the desired packages to install, for this tutorial you should install the Gateway package. Later DHCP and DNS modules will also be installed by using the Software Management module.After this step all the necessary packages are installed, now setup will guide you through configuration wizards for installed modules, in this case Network and Users. We can skip network configuration for now, so if you start this tutorial from an already installed Zentyal you can still follow it.Zentyal Server is now installed. By following the next steps you will configure each module.3. NetworkAs shown in the scenario, you have to configure three network interfaces, two external routers and one for the internal network. Zentyal will balance traffic between the two Internet connections.3.1. InterfacesGo to Network - Interfaces and configure each interface by introducing its IP and netmask.
Don't forget to mark external interfaces because Zentyal uses this info in firewall rules. In the next image you can see configuration for one of the external interfaces and the internal one.3.2. Gateways and load balancingNow you have to set up both gateways in the gateways table ( Network - Gateways):Go to Network - Balance Traffic to enable load balancing between the gateways.