During the Tuesday, 5 August 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:
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. Services affecting Wi-Fi authentication will be updated starting from 9 PM.
DNS
DHCP
NTP
RT
Web proxies
Registration system
Incoming e-mail
Outgoing e-mail
IMAP e-mail mailboxes
Mailing lists
SMS
Provisioning (web proxy autodiscovery)
Wi-Fi and VPN authentication
Network graphs
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)
File servers/home directories (gnu, serval, studentfiles)
PC login service for public labs
Archibus
Access switches: software will be updated on the network switches in the buildings listed below. All network services (including Wi-Fi and IP telephones) will be disrupted in those buildings. For smaller buildings, the work might be completed in 30 minutes, while larger buildings may take up to 90 minutes.
GLT Building
Literary Studies in English Building
Institute for Nanotechnology Innovation
Furniture and Equipment Stores
Distribution routers: software will be updated on the routers serving all buildings in the areas listed below. All network services (including Wi-Fi and IP telephones) may be disrupted in those areas for up to 30 minutes.
North campus: all buildings north of Prince Alfred St, from Somerset St to South St
Core router software update: the software on one of the two core routers will be updated. No noticeable outage is expected as all network traffic should be handled by the other core router.
Internet edge routers: the software on one of the two edge routers will be updated. No noticeable outage is expected as all network traffic should be handled by the other edge router.
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.