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Acknowledgements
Inhalt
Inhalt
Abbildungsverzeichnis
Tabellenverzeichnis
Introduction
Terminology and Basic Technologies
Terminology
Caching
The Usenet News System
How Newsgroups and Articles are Related
Articles
News Servers
Distribution Strategy for Articles and Newsgroups
News Readers
Problem Domain
Catching Up a Backlog
Provision of Local Newsgroups
News over Networks with Limited Bandwidth
Solution Strategies
Server-Multiplexing by the Client
Server-Multiplexing by the News Cache
News on Networks with Limited Bandwidth
Analysis and Requirements
Cache Accuracy
Where to Locate News Caches
News Server Multiplexing
News Database
Newsgroup and Article Database
Overview Database
Caching Strategy
Expiration
News Cache Interfaces
News Cache Cooperation
Cascading
Neighboring
Concurrent Access to the News Database
Design
Choice of Programming Language
News Server Architecture
News Cache Architecture
News Server Class Library
News Server Class (
NServer
)
Remote Server Class (
RServer
)
Local Server Class (
LServer
)
Cache Server Class (
CServer
)
News Database
Non Volatile Container Class Library
The NVList Class and its Iterator
The NVHash Class and its Iterator
Active Database
Overview Database
Article Database
Implementation
Multiprocessing Environment
Processes
Threads
Programming Language
News Cache Daemon
News Server Class Library
News Server Class (NServer)
Remote Server Class (RServer)
Local Server Class (LServer)
Cache Server Class (CServer)
News Database
Non Volatile Container Class Library
NVcontainer Class
NVlist Class
NVList and NVHash Classes
Active Database
Overview Database
Article Database
Miscellaneous Classes
Multiplexing List
sstream
Evaluation
Access Patterns
Tested News Readers
Performance Data
Future Work
Improvements
News Database
Caching Granularity
Expiration of News Articles
News Cache Extensions
Local Newsgroups
Prefetching
Offline News Reading
Extensions to NNTP
Related Work
Comparison
News Database
Functionality
Summary and Discussion
Notations
Object Oriented Model
Example
Finite State Machine
Example
The Network News Reader and Transport Protocols (NNTP & NNRP)
Difference between NNTP and NNRP
NNTP Commands
List
Responses
Group
Responses
Article
Responses
Head, Body, Stat
Post
Responses
Newgroups
Responses
Newnews
Responses
Ihave
Responses
NNRP Commands
List
active
active.times
newsgroups
overview.fmt
Listgroup
Responses
Xover
Responses
Installation of the News Cache
Setting Up the Target Directory
Compile Time Options
Configure.h
Makefile
Installation
Operation of the News Cache
ConfigVersion
NewsServers
SpoolDirectory
TimeOuts
CachePort
Retries
ServerType
Literatur
gschwind@infosys.tuwien.ac.at