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Departmental LANs All departmental LANs are connected to the campus Gigabit Ethernet backbone as subnets of CTNET and therefore have access to all the facilities in the central host computers. The CTNET currently has a total of over 60 staff LANs. These LANs have standard setup for both academic and administrative departments. They support around 4,300 staff machines, over 334 network printers, and provide access to more than 400 software applications running under the Microsoft Windows environment. A single Windows 2003 Active Directory domain has been set up to host all staff and student LAN accounts. Several domain controllers are in place to serve logon requests of around 35000 users all over the campus. A central NAS with SAN storage is deployed to provide a fault-tolerant, ever-lasting file service. Another MS Windows 2003 Enterprise server cluster is configured to offer central print services for all departments. Most of the printers are inter-connected via the network print server devices which are capable of handling print jobs from PCs, Macs, and UNIX workstations at the same time. The CityU software environment for all departments is offered by a 2-node Microsoft IIS NLB cluster. Most commonly used software applications are delivered through the central NAS. To ensure performance, each staff workstation is connected to a dedicated port on the Fast Ethernet switch.
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Student Windows
Environment
PC LANs X server program is available in all CSC teaching studios to support the teaching of UNIX/Solaris and applications available on the Sun platform. The X server program is run on Windows environment and remotely connected to the Sun UNIX/Solaris system with graphical user interface. Authentication is done by the NIS+ servers.
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Student LANs in Hostel
These are part of the CSC student LANs. In Phase I and II, there are about 2,700 network points installed, one for each student in their rooms. When Phase III and IV are completed, more than 3,500 network points will be installed. |
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LANs
for Lecture Theatres, Classrooms and Express Terminals |
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Wireless Network CityU wireless local area network (WLAN), introduced in 2000, is a flexible data communication system using radio frequency (RF) technology to transmit and receive data over the air. It is used as a supplement to our conventional campus network and allows our staff and students to enjoy mobile network computing without the need to look for a physical network port. The WLAN infrastructure is built on Industrial Standard IEEE 802.11a, b and g high-speed products and users can use their own notebook computers with compatible WLAN cards to access the CityU WLAN. Most areas on campus are covered with 600 access points providing a total capacity of over 2000 concurrent connections for Intranet and Internet access. |
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