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'''HERNDONA software download available at the OpenVZ website, Vahttp://openvz.org/download/kernel/rhel5, November 15, 2007''' – JunkEmailFilter.com works in the dangerous area of sorting through e-mail enables users to filter out viruses and junk e-mails known as "spamdivide one physical server into virtual servers using Xen software," so that its clients receive only the e-mails they want to see. For higher levels of control and security, it uses open source virtualization software, known as then creating OpenVZvirtual environments inside those virtual machines.

"In our business, it's a necessity to have redundant systems in different locations in case bad things happen," says Marc Perkel, support manager at JunkEmailFilterThe software download is based on the RHEL5 Xen kernel with builds available for both x86 and x86_64 platforms.com. "People are dependent The software can run on us to get their e-mail through, so we cannot afford downtimethe Xen hypervisor in both Dom0 and DomU."

The company has set up virtual servers "We wanted to show people what is possible with OpenVZ the low overhead of our operating system server (OS) virtualization open source OpenVZ software and maintains backups so that, if necessary" said Kir Kolyshkin, manager of the OpenVZ project. "This is a marriage of complementary technologies that blends the flexibility of virtual server machine technology, which is capable of running different operating systems, along with the efficiency of OS virtualization, which can be restored on another physical server and started up immediatelyrun several times more virtual servers as compared with other virtualization technologies."

There are four OpenVZ virtual servers on each of four physical servers that run e-mail server software, MySQL and SpamAssassin with virtual servers as large as 4 gigabytes. "OpenVZ has almost no overhead, so we are giving up almost nothing in terms This combination of performance to run virtual servers," says Perkel. "In our experience, OpenVZ has been compatible open source virtualization technologies provides users with most everything we run so it's one flexibility of those 'just works' solutions." "We run different software programs in different virtual servers," says Perkel. "That way, running one application isn't compromised if another application has an issue." "With OpenVZor more guest operating systems, we can while also limit applications to specified amounts of memory and processing power, which allows us to tune our resources very precisely. If necessary, those can be adjusted on the flyrealizing high performance through low overhead," says Perkel. The company has used OpenVZ software to create templates for different virtual serverssaid Tom Schwaller, such as its VoIP phone system and SpamAssassin servers that process e-mail. Each virtual server is deployed on a physical server independent of othersan expert in Linux, which enables virtual servers to be moved among physical servers to balance workloads. == About JunkEmailFilter.com == E-mail filtering is easy to set up open source and doesn't require users to change their existing e-mail servervirtualization technologies based in Germany. Instead of e-mail coming from the Internet directly to the user"We's e-mail server, it goes to spam filtering e-mail servers. There, it re seeing virtualization technologies maturing as we really understand what is stripped of viruses and spam and within seconds is passed on to the user's existing e-mail server. JunkEmailFilter.com is based in San Bruno, California. More information can be found at www.junkemailfilter.compossible."

OpenVZ software can be used to help consolidate servers and increase server utilization rates, or for creating "sandboxes" «sandboxes» for test and development, or when sharing resources so that every user can have root access while being kept isolated from each other.

The OpenVZ software comes with user tools that help automate management of virtual servers. With its unique architecture that uses a single operating system instance, the virtual servers perform and execute like independent servers with their own memory, configuration files, users and applications. Each can be re-booted independently. Using template-based application deployment provides a simple way to get new virtual servers up and running in minutes and OpenVZ can run several times more virtual servers per CPU than other virtualization technologies. Also, the OpenVZ project maintains a blog site discussing virtualization technology, which can be accessed here, http://blog.openvz.org.