The Unix interactive cluster ( will soon be retired. These long-running Solaris systems will be replaced by new Linux systems, which will run concurrently for a brief transition period.

As part of the ongoing campus network refresh project, IMSS has increased campus wireless network speed limits. Caltech BeaverNet and the Registered network are now almost twice as fast as previous speeds.

Due to serious security and compatibility issues with Java, IMSS recommends using Time Keeping (Kronos) Limited instead of regular Time Keeping (Kronos).

Effective Monday, April 15th, Caltech Help will be the new system for IMSS, Card Office, and Procurement service requests. Other campus service centers, including Human Resources, will soon join this system.

Effective Monday, February 25th, the Help Desk and Hardware Repairs will be located in Central Engineering Services (building 85). The Help Desk will be located in Room 204 and Hardware Repairs will be in Room 109.

A serious vulnerability has been found in Java 1.7, which allows execution of arbitrary code on the victim's computer.

Caltech has established a site license for LabArchives under which all students and faculty will now have unlimited use of this platform.

Effective September 5, 2012, Caltech dialup modem services, both local and 800 services, will be retired.

FileSender, a service operated by Internet2, allows customers at member institutions to easily share large files (up to 1TB) at no cost. Caltech is a member institution so this service is available to all campus users with an access.caltech account.
On July 27th, access.caltech will be updated with several improvements. The list of services will be better organized so you can more quickly and easily find what you need.
IMSS would like your input on the specific Matlab Toolbox licenses that you use for your Caltech work. Your feedback is essential in helping us decide which licenses we will continue to maintain.