- Introduction and History
- What is the directory service within newsgroups?
- Why there are only 15 Pictures per message?
- Why is now no html used?
- Why is html version better?
- What is the advantage for online users?
- Are there user that have a disadvantage?
- How can i filter the directory service?
- How much are resources needed for the directory service?
- Why directory service is no spam?
- What objects are listed in directory?
- How can i protect my messages from directory?
- How can I find older messages?
- Somebody else has published my copyright protected stuff. What can i do?
- I have a problem! Who answers?
To solve this situation, we have created the binary directory service.
Every object that is added to the open part of the archive of
http://www.usenet-replayer.com/archive.html
is also queued to the directory generation. If 15 objects are found,
a new page of directory service
is created. If there was no message posted in the last 3 days,
a non html version is posted as supercedes to the newsgroup.
Also is the transport more effective. The NNTP (Network
News Transport Protocol) transports the pictures encoded 4:3 as
text. The HTTP Protocol transports the pictures as binary
Files.
The size of the message is in mean 34 KByte. This are 5 seconds on
modern modems. The content of the postings are also optimized
for transport. The mean size of a picture is 97 KB. Encoded as
text this are 130 KByte. Do download
the content the users intreresst occupies in mean 130 * 0.6 =
78 KByte. The result of this calculation is: a user needs in
mean 34+78=112 KByte to get his interests from 15 messages .
And now the conventional way: To get a visual overview you
need the content from the 15 messages. Because of 4:3 Text
coding, every object needs 97*4/3 = 129KByte. The 15 messages
need 15*129 = 1940 KByte of traffic.
All user can save 94% of download time and costs.
The messages are linked by supercedes. Every group contains
one message. Now are 229 Groups supported. 229 x 34 kByte
= 7.8 MByte are used on storage.
"Substantively identical" means that the material in
each article is sufficiently similar to construe the
same message. The signature is included in the
determination. These are examples of substantively
identical articles:
"X-No-Archive: yes"
header line. If you dont have software able to
put this line in the header, you can put it alternativly in the text part
of the body of your message.
I was using the usenet for long time with modem transport.
No local news server. This is the reading mode of the
big majority. As a result from this experience
I have decide to sponsor a service to improve the situation
of such people. All these services are free of charge.
http://www.usenet-replayer.com point to the www part
of this services. The rating of the users is very positiv. Look
here.
A other function resulting from this development is the Directory service
posted within the usegroups.
If you are reading a binary newsgroup, you have the problem,
that it is very slow if you download the pictures with nntp.
The reason for this is, binary data are encoded 4:3 as Text.
There is no function, who implements the possibility to pre look
the content of the binary groups without loading all data.
There is An additional problem. The netscape software loads the
whole messages again if you adapt the window size to a picture.
This is a result from analysis of the logfile from
the http server that is used to build this service.
We found, that some older computers with
windows 3.11 have problems with the RAM storage.
If a directory message contains more objects,
they crashed
A lot of people uses software with restrictet feature
sets. I order to build a service for all useres, we have
build a non html service. If you want to use the html
version, you can use
directory service
as startpage.
A bigger number of binary objects are cross-posted to a
lot of groups. If people read the directory from more than
one group, then the cross-posted directory pictures are
transported only one time.
I have analysed the logfile of the http server in the background
of this service. Readers of the directory messages are clicking in
mean on 0.6 objects per directory message.
No!
The subject of the mesages informs
the user what he can expect to the message.
The sender "nobody@usenet-replayer.de" is only used for the
directory service. The messages ids can be also used if they fit
the following real expression: "^<aa\..*@usenet-replayer\.de>$"
There are 34 KByte needed via nntp to catalog in mean 1940 KByte.
"What is the advantage ...?" contains the calculation.
This is 1.75%. In groups with high traffic, the effectivity is better
because of the limitation to one message every 3 days.
On the other hand the reader traffic is reduced.
The Url
http://www.faqs.org/faqs/usenet/spam-faq/ for example
contains the following text explaining spam:
Excessive Multi-Posting (EMP) has the same
meaning as the term "spam" usually carries, but it
is more accurate and self-explanatory. EMP
means, essentially, "too many separate copies of a
substantively identical article."
The directory service does not fit these definitions,
because the messages are part of a service. Each message
has unique contents. And each message supplies an
important advantage to a majority of the user.
Every binary object that was never posted before.
Contents illigal at the federal republic of germany are blocked.
If you don't want your posting added to this directory messages and the
archive
of usenet-replayer, please use the
Search in a bigger context with the
archive of usenet-replayer.
Please send a e-mail to the
copyright agent and describe your problem.
The copyright agent will remove your stuff from archive and directory.
The sender of the message will be blocked from usenet-replayers services.
You can send any question to the system
operator.
