Title of Service: Windows Internet Name Service (WINS)

Status of Document: This document describes services offered in May 2012.

1. Introduction

The purpose of the Windows Internet Name Service (WINS) is to provide NetBIOS name to address mapping for machines attached to the Oxford University network. The service is used primarily to resolve NetBIOS names to IP addresses.

The Windows Internet Name Service is managed by the ICT Support Team (ICTST) on behalf of OUCS.

2. Summary of ICTST/OUCS Responsibilities

Hours of Service

2.1 The service operates at all times.

2.2 Staff cover is provided from 09:00 to 17:00 on weekdays. Periodic monitoring takes place outside these hours, and informal arrangements exist for staff to be notified in the event of serious problems, but no funding is provided to make resolution of faults outside working hours contractual.

2.3 If a fault is notified between 09:00 and 17:00 on a working day, ICTST will normally commence investigation and correction within four working hours (provided the same group isn't also handling a similar fault with this or another service).

2.4 If a fault is notified outside these hours, ICTST will use its best endeavours to attend the fault, but no funding is allocated to this purpose.

Serviceability Targets

2.5 It is intended, as far as is possible, to maintain service of all components at all times.

Resilience

2.6 The service is replicated on two servers. Client and server software allows for failover between servers.

2.7 The machines providing the service are distributed between the 129.67 and 163.1 networks.

Alternative Facilities

2.8 Departments and colleges can also run their own WINS servers.

Hardware and Software Maintenance

2.9 The machines used are maintained under warranty by the supplier.

2.10 Software updates are applied by ICTST staff — this is done on a machine by machine basis, with no interruption to service.

System Development

2.11 There is no scheduled development time.

Administration and Support

2.12 Information for departmental and college system administrators is given at

2.13 The WINS database is designed to be updated dynamically (and automatically) by clients. Occasionally College or Departmental IT Officers may need to register a static entry. These entries are added manually; requests should be sent to made winsmaster@oucs.ox.ac.uk.

Information

2.14 Notification of faults, outages, etc. is circulated on the mailing list itss-announce@maillist.ox.ac.uk

Fault Reporting

2.15 Faults should be reported to winsmaster@oucs.ox.ac.uk. OUCS will liaise with department and college computing officers: no end-user support is provided.

Education and Training

2.16 Not applicable.

3. Summary of Client’s Responsibilities

3.1 The recommendations for University systems using this service are given at http://www.oucs.ox.ac.uk/network/wins. In particular, as the NetBIOS namespace is flat, unlike the DNS namespace, there is potential for name clashes. Clients should use the documented naming conventions to minimise the likelihood of clashes occurring.

3.2 In order to maintain service throughout routine operations such as patching of servers, clients need to be configured with the addresses of both WINS servers.

4. Premium Services

4.1 Not applicable.