joe@auspyr.UUCP (05/07/87)
Problem:
- Sending compressed, batched, network news via a non-news site.
Scenario:
- Two Network News Sites (!newsA and !newsB) are running News2.11
and wish to send news to each other. !newsA and !newsB aren't
connected directly, but a common site (!inbetween) links them
via UUCP. !inbetween does not run the network news.
Solution:
- Create a fake entry in the /usr/lib/news/sys file for the distant
systems. For example:
On !newsA!/usr/lib/news/sys, add:
newsB:to.newsB,...newsgroups...:F:
On !newsB!/usr/lib/news/sys, add:
newsA:to.newsA,...newsgroups...:F:
- Add cron scripts to execution sendbatch for the fake sites, Eg:
On !newsA!/usr/lib/crontab:
1 * * * * /usr/lib/news/sendbatch -c newsB
and etc...
- Create an rnews-execution-forwarder on the non-news site. For
example, on !inbetween create the file /usr/local/bin/rnewsfwd to read:
uux - $1!rnews
- Since the /usr/lib/news/sendbatch script will look for a file
in the form of /usr/spool/batch/$remote.cmd and execute it, then
create a script for each fake site (on the news sites) that reads:
uux - -r -z inbetween!rnewsfwd `basename $0 .cmd`
Or, for folks that don't like to use "ln", the file
/usr/spool/batch/newsB.cmd would read:
uux - -r -z inbetween!rnewsfwd newsB
Actions taken, commands executed:
A user on !newsA posts news to to.newsB. The article is stored in
/usr/spool/batch/newsB.
Cron starts up "/usr/lib/news/sendbatch -c newsB".
/usr/lib/news/sendbatch sees that /usr/spool/batch/newsB.cmd exists
and executes it.
/usr/spool/batch/newsB.cmd generates the command:
uux inbetween!rnewsfwd newsB
After UUCICO gets done transfering files, the rnewsfwd script on
!inbetween then generates the command:
uux newsB!rnews
Once again, after UUCICO, rnews on !newsB runs inews and the article
is posted on !newsB.
And visa-versa.
Flow wise, that is...
!newsA!/usr/lib/news/sendbatch
-> !newsA!/usr/spool/batch/newsB.cmd
-> uux inbetween!rnewsfwd newsB
!inbetween!/usr/lib/uucp/uuxqt
-> !inbetween!/usr/local/bin/rnewsfwd newsB
-> uux newsB!rnews
!newsB!/usr/bin/rnews
-> !newsB!inews
Problems:
- News posted via the rnews-execution-forwarder won't reflex a true
Path:, so news readers with mail-reply options might not like it.
[[ This was no problem here since both sites are running smail with
sendmail. ]] Perhaps the NEXT version of News Software might want to
consider an rnews-execution-forwarder scheme that attaches the
node-hoppers-names to the path lines; but if you ask me, it should be
done with command line args and let the final poster fix the path!
- A better rnews-execution forwarder need be created for multi-node
hops.
I know the above works on 2.11 news ... should it work on 2.10?
(Actually, on my implementation, !newsA ran 2.11 and !newsB ran 2.10 ...
worked fine).
--
"No matter Joe Angelo, Sr. Sys. Engineer @ Austec, Inc., San Jose, CA.
where you go, ARPA: aussjo!joe@lll-tis-b.arpa PHONE: [408] 279-5533
there you UUCP: {sdencore,cbosgd,amdahl,ptsfa,dana}!aussjo!joe
are ..." UUCP: {styx,imagen,dlb,jmr,sci,altnet}!auspyr!joefair@ucbarpa.Berkeley.EDU.UUCP (05/08/87)
Actually, you can also mail it through the "inbetween" site, since mail already does forwarding for you. There are two programs in the standard news distribution for this: uurec and sendnews. Even if neither end runs a real mailer (i.e. they don't believe in mail aliases like delivermail and sendmail do), you can feed the resultant mailbox to "uurec" periodically. Of course, mail replies along the path between these two sites will not work without other hackery. Erik E. Fair ucbvax!fair fair@ucbarpa.berkeley.edu
joe@auspyr.UUCP (Joe Angelo) (05/11/87)
> Actually, you can also mail it through the "inbetween" site, since > mail already does forwarding for you. There are two programs in the > standard news distribution for this: uurec and sendnews. The idea was *not to use* mail ... Instead, to send batched, compressed articles. Who wants a C/D/X. file for every article?? Not I. -- "No matter Joe Angelo, Sr. Sys. Engineer @ Austec, Inc., San Jose, CA. where you go, ARPA: aussjo!joe@lll-tis-b.arpa PHONE: [408] 279-5533 there you UUCP: {sdencore,cbosgd,amdahl,ptsfa,dana}!aussjo!joe are ..." UUCP: {styx,imagen,dlb,jmr,sci,altnet}!auspyr!joe
fair@ucbarpa.Berkeley.EDU (Erik E. Fair) (05/12/87)
In article <5327@auspyr.UUCP> joe@auspyr.UUCP (Joe Angelo) writes: >The idea was *not to use* mail ... >Instead, to send batched, compressed articles. > >Who wants a C/D/X. file for every article?? Not I. Joe, RTFM. You can send batches with sendnews and uurec, it works just fine. Sendnews is written to generate the appropriate batch format for uurec to eat and process, which will also transit the mail system untouched. The only limitation is that you can't send *compressed* batches, because the mail system does not guarantee 8 bit integrity. The point of the mechanism is to accomplish exactly what was asked for, i.e. getting news through a site without forcing them to participate in the USENET. Erik E. Fair ucbvax!fair fair@ucbarpa.berkeley.edu
faunt@spar.SPAR.SLB.COM (Doug Faunt) (10/10/87)
In article <18843@ucbvax.BERKELEY.EDU> fair@ucbarpa.Berkeley.EDU (Erik E. Fair) writes: >You can send batches with sendnews and uurec, it works just fine. >Sendnews is written to generate the appropriate batch format for uurec >to eat and process, which will also transit the mail system untouched. >The only limitation is that you can't send *compressed* batches, >because the mail system does not guarantee 8 bit integrity. The point >of the mechanism is to accomplish exactly what was asked for, i.e. >getting news through a site without forcing them to participate in the >USENET. I'm guessing that one uses sendbatch with a .cmd file to generate and send off these batches. I'd dearly love to be able to use the sendbatch -c7 flag to make these files smaller, if possible. Does uurec know how to handle this?