On Thursday, January 17, 2008, we will have a scheduled downtime from 4:00am to 8:00am EST.
Scheduled work includes:
- Upgrading virtual host web server to PHP5 (specifically, version 5.2.5)
- Install new LDAP server hardware and software
- Update the SSH server software
Why is it happening:
- The virtual host web server (virtweb) hosts websites that have URLs of the form http://[projectname].cs.princeton.edu. This server is currently running PHP4 (specifically, version 4.4.7). Because PHP4 reached its end-of-life on 12/31/07 and because there are users in the department who need PHP5, we are upgrading to version 5.2.5. For the most part, PHP code that runs on version 4 will run without change on version 5. We are contacting the owners of those project web pages that use PHP with additional information to ensure a smooth transition.
- In the not-to-distant future, we will also transition the web server that handles user home pages to PHP5. As part of this downtime, we will create a virtual host (running PHP5) that will serve the content of user public_html directories. This host will only be reachable from within the department\’s local network to let users test their home pages under PHP5 via http://web1.cs.princeton.edu/~username
- Note that user home pages will continue to be available (under PHP4) both inside and outside the department as http://www.cs.princeton.edu/~username. We have no plans to change this convention.