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Linux Hosting Services

​CIT offers application hosting on servers running the Red Hat Enterprise Linux operating system. Customers can choose from the following Linux hosting options:

  • CIT-Managed Virtual Machines (also called VMs or virtual servers)
  • Customer-Managed VMs
  • Dedicated Physical Servers

Linux Virtual Machines

Linux VMs provide a flexible, lower-cost option for customers who don’t need the resources of a dedicated physical server. With virtualization, customers get their own VM that runs securely and independently on a physical server with other VMs. The VMs are separate but share the resources of the physical server or a pool of physical servers. 

CIT offers customer-managed VMs and CIT-managed VMs. For more information about Linux VMs, see the Linux Virtual Server Service page.

Dedicated Physical Linux Servers

CIT also offers dedicated physical Linux servers, which are housed in a secure, centrally supported hosting environment. The service includes managed storage and backup. Additional options include SSL certificates, network security architectures, application firewalls, shared and dedicated load balancers, and central web and database services.

For dedicated physical Linux servers, CIT provides the following CPU and memory configurations: 

  • 2 CPUs (4 cores per CPU), 8 GB memory
  • 4 CPUs (8 cores per CPU), 64 GB memory
  • Initial storage space: 146 to 300 GB. Additional space is available in minimum increments of 25 GB. 

Customer Benefits

For the benefits of Linux VM options, see the Linux Virtual Server Service page. The benefits of the Dedicated Physical Linux Server service include the following:

  • Patching, monitoring, and a dedicated customer coordinator.
  • A lower-cost entry point to application hosting compared to Unix.
  • Positions customers for a transition to cloud computing.
  • Secure SSAE 16 (formerly SAS 70) audited environment with high availability. 


Customer Market

This service is available to all NIH institutes and centers and to other United States government agencies.​

Frequently Asked Questions

Q: What’s the difference between the Linux hosting service and CIT’s zLinux service?

A: Both CIT’s zLinux and Linux hosting services offer application hosting on hardware running the Red Hat Enterprise Linux operating system. The zLinux service uses mainframe hardware and the z/VM (virtual machine) operating system to run multiple Linux VMs on the mainframe system. The Linux hosting service uses servers with x86-based processors. For more information, see the CIT Service Catalog's zLinux Virtual Server Hosting page.

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This page last reviewed: March 09, 2011