Achtung, das Originalformat war Star Office 6.0 (.sxi). Die Konvertierung nach PowerPoint (.ppt) ist nicht ganz reibungslos verlaufen, so dass vieles falsch.

Achtung, das Originalformat war Star Office 6.0 (.sxi).Die Konvertierung nach PowerPoint (.ppt) ist nicht ganzreibungslos verlaufen, so dass vieles falsch angezeigtwird!

Newsgroups and Usenet

What is a newsgroup?

DE

COMM (communications)

REC (recreation)

ADMIN (administrative)

SPORT

TV

How to find a specific group?

Newsgroups and Usenet

What is a newsgroup?

How to find a specific group?

- e.g.: de.comm.software.newsserver

- miscellaneous: de.comm.software.misc

Installation and configuration of newsservers

For topics without an own group

Newsgroups and Usenet

What is the Usenet?

- Union of different newsgroups - The big 8

comp rec misc newssocsci talk humanities

- Country identifications e.g. de, ch, at...

Newsgroups and Usenet

Not belonging to the usenet:

- microsoft.*

- z-netz.*

- maus.*

Newsgroups and Usenet

Many different servers

Free Servers e.g. news.fu-berlin.de

Access restrictions

Exchange of articles between servers

Newsgroups and Usenet

Rules of behaviour:

- correct citing

- no HTML

- real name, correct E-Mail-address

Netiquette:

Newsgroups and Usenet

Newsgroups and Usenet

Newsgroups and Usenet

Newsgroups and Usenet

Newsgroups and Usenet

Newsgroups and Usenet

Newsgroups and Usenet

MIME: Multipurpose Internet Mail Extensions

Newsgroups and Usenet

Threading

- unique Message-Ids- References Header

Threading

<[email protected]>

<[email protected]>

<[email protected]>

Message-ID: <[email protected]>References:<[email protected]>

<[email protected]>

Headers of news articles

From: [email protected] (Marc Langer)Subject: Re: some topicDate: Tue, 18 Dec 2001 08:12:45 GMTNewsgroups: de.testMessage-ID: <[email protected]>References:<[email protected]>

<[email protected]>MIME-Version: 1.0Content-Type: text/plain; charset=ISO-8859-1Content-Transfer-Encoding: 8bit

Newsgroups and Usenet

Rules for creation and deletion of groups

- Request for Discussion (RfD)

- Call for Votes (CfV)

- Result

- if successful: appropriate action

control messages: PGP signed

Newsserver

- Standards (NNTP)

- Newsfeeds to other servers(flood fill)

- UUCP: Unix to Unix CoPy

- Satellite feeds (20 MBit/s, 150 GB a day)

Newsserver Configuration

- Example: INN 2.2 on Debian

- Configuration files in /etc/news:

* inn.conf (domain, hostname) * control.ctl (verification of controls) * incoming.conf / nnrp.access * newsfeeds

- Manual group creation: ctlinnd newgroup de.group.name