Changes

Consider a Linux server used to serve mail, web site, and DNS. There are at least three different applications listening to and handling network requests, and any of them can contain security holes. Using OpenVZ, a server can be divided into three VPSs[[VE]]s, one for each application. Thus, if the DNS server is compromised, the other applications will still be left intact due to complete isolation between VPSsVEs.

With OpenVZ, you can enjoy the benefits of dedicated server without such drawbacks. Create a VPS VE for each application and use the existing hardware more efficiently. This approach can be deployed totally transparently to users using OpenVZ.

Developers often need access to several different Linux distributions to develop an application. Testing also needs to be performed on various software configurations. Therefore, testing and development groups often require a lot of hardware. Alternatively, using OpenVZ developers and QAs can create multiple partitions with different Linux distributions and configurations residing on one physical server. Each VPS VE can have its own set of packages, system libraries, configuration files.

A better way is to use OpenVZ. You can use different Linux distributions for different VPSs [[VE]]s residing on one physical server. Each VPS [[VE]] can have its own set of packages, system libraries, configuration files.

With OpenVZ, a separate VPS VE can be created for every student. Thus, each student gets their own root account and can do everything on their own server, e.g. experiment with firewall configuration rules (iptables).