noticeboard.ru.ac.za

2016/04/05 - April scheduled maintenance
mapu038

During the Tuesday, April 5th maintenance window, maintenance work affecting a number of services will occur, starting at 5:30 PM and being completed before midnight. The following work is planned:

  • Wi-Fi controllers: software on the controllers managing Wi-Fi access points on campus will be updated. Wi-Fi access across campus will be unavailable for around ten minutes.
  • Server software updates:software on the servers which provide the following services will be updated, resulting in outages of up to 15 minutes per server:
    • DNS
    • DHCP
    • NTP
    • RT
    • Web proxies
    • Registration system
    • Incoming e-mail
    • Outgoing e-mail
    • E-mail mailboxes
    • Webmail
    • Mailing lists
    • SMS
    • Apple Software Update Server
    • Provisioning (web proxy autodiscovery, telephone provisioning)
    • Wi-Fi and VPN authentication
    • CHERTL Evaluation Assistant
    • Network graphs
    • Guest network access
    • Network monitoring
    • Terminal Four content management system
    • RU Single Sign-On system
    • Main web server (www.ru.ac.za, etc)
    • University administration and meal booking systems
    • SEALS Library consortium services
    • Network printing services (iPrint / PaperCut)
    • Home directories (Gnu, Jackal)
  • Access switches:software on a number of access switches will be updated, causing a network outage (including Wi-Fi and IP telephones) of up to ten minutes in the following buildings:
    • Geology
    • RATT servers in Struben data centre
  • Firewalls: software on the firewalls which connect the Internet to the campus, SEALS and public networks will be updated. As the firewalls operate as a redundant pair, no noticeable outages are expected during this maintenance.

While we try to publish a list of all service-affecting work here in advance, the list should not be considered exhaustive and other low impact work may also be undertaken during the maintenance window.

This maintenance work is being undertaken in the ITSC-approved scheduled maintenance window. More information about maintenance windows and maintenance periods.


Update: Home directory services provided by the gnu and jackal servers are likely to be down for three hours, rather than 15 minutes as above.

trackback 150728