Linux Cycles

  • Instructional Unix Cycle Servers: The attu cluster is a set of four servers (attu1-4). You can connect to a specific server by name, or if you connect to, you will be connected to one of the four servers. Process limits are governed by Cgroups.
  • Research Unix Cycle Servers: Members of the CSE research community needing general UNIX cycles can use any of the research Linux cycle servers:,, and Process limits are governed by Cgroups. Please compute responsibly. is available as an administrative login server.
  • Contact support@cs for additional Linux servers designed for remote access


Any application with printing interface using IPP protocol on any network can use this service provided that valid CS.WASHINGTON.EDU Kerberos credentials are used to run the application. (However, only research account holders can print to research printers.)

[+] CUPS Print Servers and Configuration

[+] Printing from Terminal

Network File Access

The recommended way of connecting to CSE files and folders from a non-lab managed machine is via the fuse-sshfs package (most applicable directories are already exported on lab-managed machines). It is also possible to request exports of a specific directory to a local desktop by emailing support@cs.

[+] Mapping Your Home Directory

[+] Mapping a Project Directory

[+] High-Level File System Structure

Remote Access

We provide ways that you can telecommute and use CSE resources and software. If your destination is Unix, we offer several packages for connecting, including: OpenSSH and XTerm for X support. If your destination is Windows, Remote Desktop Protocol (RDP) is the current (and only) supported method.

[+] Accessing Remote Windows Machines

[+] Accessing Remote Linux Machines


Linux Virtual Machines or "Home VM"

The CSE lab prepares virtual machine images that, in a rough sense, allow you to take a lab Windows or Linux workstation home with you. More details can be found HERE.



The CSE Linux cycle, admin, and desktop machines run CentOS Linux as their OS. CentOS is a community-supported open source project, which produces a free derivative of the RedHat Enterprise Linux (RHEL) distribution.

CentOS releases have a multi-year life cycle. Updates for security and bug fixes are frequently provided throughout the release cycle and periodic 'point releases' may introduce new features and rebase key software components to new versions.

We install a standard set of packages each release. The instructional software is usually a superset of what is installed on the research systems, since they have additional 'courseware', requested by instructors, which varies each quarter.

Software updates and security fixes are routinely applied, as received from the upstream distribution.

Only CS Lab staff have root access. NFS file access from lab-managed file servers is available only to lab-managed Unix systems.

For more details see CentOS Linux at CSE