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(revision approved by the Information Strategy and Governance Committee on 16 March 2015)

A.         Purpose

1.      The proper use of the campus network and the violation of such use (including its related penalty, if any) are governed by the “Policy on Use of IT Services and Facilities", “Information Security Policies and Standards”, the JUCC’s “HARNET Acceptable Use Policy”[1]  and additional regulations defined in this document.

B.          Scope

1.       All users with access to the campus IT network are subject to regulations defined in this document.

C.          Statement

1.      ​Users must not attempt to disrupt or degrade the performance of host systems, any device on the network, or any IT service delivered over the network.

2.      Loopholes in network security systems or knowledge of special passwords etc. must not be used to gain access to any service or any resource on the network for which proper authorisation has not been given by Central IT.

3.      Users who are aware of any problems on network security should report such to the CSC Help Desk.

4.      Users must not create or distribute malicious software codes on the network, and should take all reasonable precautions to prevent such actions.

5.      Users must not connect or disconnect networking equipment (e.g. bridges, routers, repeaters, protocol analysers, data loggers, transceivers, Wireless LAN device, etc.) to or from the campus network without proper authorisation from Central IT.  All network changes made by departments to the campus network, including the information of the administrators involved and/or users affected (if applicable), need registration and/or updates, as appropriate, with Central IT.

6.      Users must not conduct network experiments on the campus network such as demonstrating network vulnerabilities, sniffing network traffic, generating network traffic which will lead to depletion of its available bandwidth, or setting up phishing sites, etc. unless proper authorisation has been given by Central IT.

7.      All computers directly reachable from the Internet or Intranet (i.e. not connected to a private or standalone network) must use only those IP addresses/node names/domain names that are approved by Central IT in order to avoid conflicts which might result in disruption of normal operation of the campus network.  Please refer to the "IP address registration" and "Domain Name System Policy and Guidelines".

8.      Users must register in advance with Central IT (a) for any network server or communication link installed on campus through which the IT service, accessible by remote user, is offered, or (b) for any IT service that is offered to staff and students but hosted by external service providers.

9.      Without prior approval from Central IT, users must not perform network scanning or port scanning on the campus network.

D.         Enforcement

1.      Failure to comply with any regulation defined in this document may result in penalties as defined in the "Policy on Use of IT Services and Facilities."

E.          Terms and Definitions

1.      A common set of terms and definitions used in the IT Policies and Regulations are defined in the “Policy on Use of IT Services and Facilities” document.

F.           Related Policies and Regulations

1.      This document is only part of the Central IT’s IT Policies and Regulations. The “Policy on Use of IT Services and Facilities” contains a complete list of other documents in the IT Policies and Regulations.

2.      The IT Policies and Regulations may be revised from time to time as necessary without prior notice.

G.         Contact Information

1.      For questions about this document, please contact the Office of the Chief Information Officer (OCIO) at

[1]    JUCC is the Joint University Computer Centre Limited and the HARNET Acceptable Use Policy can be found at