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dpc
Effects of Routing Dialins Through the Telnet Queue Mark Unseen   Oct 26 18:24 UTC 1997

        I would like to have some discussion on the effects of routing
the dialins through the ptys.
        The major effect I can see so far is that local dialers-in
are now subject to the telnet queue.  For these people (including
me) waiting in the queue is a big disincentive to getting on Grex.
        My *impression* is that the most active participants in
the conferences are local dialers-in.  If this is so, can we expect
to see a decline in conferencing activity?   Has such a decline 
already happened?
        On M-Net, janc has said that one option of correcting this
situation is repairing Grex' power supply.  Is anyone considering
doing this?
77 responses total.
dang
response 1 of 77: Mark Unseen   Oct 26 21:10 UTC 1997

Regardless of the effects, we're stuck with it for the moment.  I'd say the
easiest thing to do to fix it, since we're going to do it anyway, is get the
670 up.  However, it's also likely to be the second longest of the three
options.  These are, as far as I know:
        1.  Get up on the 670.  It will work with the ALM (serial) card fine,
            and the modems can go back to what they were.  This will happen
            eventually, regardless of this problem.
        2.  Fix the telnetd, rlogind, and sshd programs to route traffic from
            the terminal server to a seperate set of ptys, thus bypassing the
            telnet queue for dialins.  This will happen regardless of the
            problem.
        3.  Fix the powersupply on Grex, so that we can go back to using the
            ALM card.  This won't happen unless this problem spawns it.

Of the three, 3 will likely be the quickes, then 1, then 2.  However, 3 is 
also expense that need not be spent, as both of the other two will happen
eventually.  So, can we stand it for however long it takes to get up on
the 670?  Or do we need it fixed now?  One other think to keep in mind:
Many staff members dial in.  This problem will likely spur them on to more
work on the 670, but working on the power supply may possibly detract from
work on the 670.  I don't know.  Keep in mind too, that no fix is likely to
be in place in less than a week, probably more.

All this said, I don't really have an opinion, because I telnet in since the
advent of teh ISDN link.  (Mostly, my telnet software is much much better than
my dialin software) I'm leaning slightly toward waiting for teh 670, but I
do know how annoying it is to dial into the queue, so I'd also like to see
this fixed asap.  Option 2 waits on Marcus, and I have no idea where he stands
on it.  I know it's on his todo list, which is a mile long, but I don't know
where.

scott
response 2 of 77: Mark Unseen   Oct 26 22:17 UTC 1997

 We may be able to get a spare power supply.  I'm waiting to hear back 
about that.
aruba
response 3 of 77: Mark Unseen   Oct 26 22:26 UTC 1997

I'm with dpc on this one - I'd like to see it resolved as quickly as possible.
I suggest putting a time limit on solutions other than fixing the power 
supply.  In other words, we could say that if the situation isn't take care of
in, say, three weeks, we spend whatever it takes to fix the power supply or
get a new one.  (I heard at the board meeting that it would cost $150-$200 for
a new one, which is money we have in our bank account.)
mary
response 4 of 77: Mark Unseen   Oct 27 01:28 UTC 1997

Don't even wait the three weeks.  Otherwise I agree with Mark.
scg
response 5 of 77: Mark Unseen   Oct 27 04:55 UTC 1997

The thing is, we're not sure fixing the power supply will do it.  And even
when that's done, it would mean going back to the other problems associated
with running the modems through the serial ports.  Getting on the 670 isn't
a good solution either, because really we should still be using the terminal
server there.  It would be much better to get the telnetd to the point where
it can tell the difference between local and terminal server users.  I'm not
sure what Marcus's current timetable is on that.
n8nxf
response 6 of 77: Mark Unseen   Oct 27 20:41 UTC 1997

I offered Grex a free, good, working power supply a couple years ago.
There was minimal interest and then I heard nothing.  So, I sold it
at a swap for $5 this spring.
 
I checked out the power supply on Grex a few months ago.  It seemed to
be doing its job.  BTW, it's a 1,000 watt supply!
jared
response 7 of 77: Mark Unseen   Oct 27 21:56 UTC 1997

I'm with steve #5
orinoco
response 8 of 77: Mark Unseen   Oct 29 00:06 UTC 1997

Recently, I've been having trouble dialing in because I get disconnected after
a while of waiting on the queue.  Does anyone know what's up?
valerie
response 9 of 77: Mark Unseen   Oct 29 03:16 UTC 1997

This response has been erased.

e4808mc
response 10 of 77: Mark Unseen   Oct 29 17:19 UTC 1997

Monday night, for quite a while, I got the "wait a bit to connect" msg, then
got kicked off.   I've also been waiting the the telnet queue a lot, but have
never been kicked off once the numbers started.  
cmcgee
response 11 of 77: Mark Unseen   Oct 29 23:20 UTC 1997

Ok, is there some way you techies can fix things so that there is less than
90second wait between "wait for a conection" and the start of the telnet que?
My problem seems to be in my software, that quits after 90 seconds of waiting
for the queue to start counting down.  It thinks that there is "No Connection"
, shrugs its shoulders, and goes off to do other things (pout, I do believe).
valerie
response 12 of 77: Mark Unseen   Oct 30 00:00 UTC 1997

This response has been erased.

orinoco
response 13 of 77: Mark Unseen   Oct 30 00:25 UTC 1997

Same problem as Catriona - every time the numbers start, I stay connected.
scott
response 14 of 77: Mark Unseen   Oct 30 01:32 UTC 1997

Grex has been down a bit lately, which would result in you getting the
"welcome to Grex, please wait a bit message" (from groupie, not Grex), then
no actual connection followed by a timeout.
aruba
response 15 of 77: Mark Unseen   Oct 30 06:06 UTC 1997

Re: scg and jared:  In this particular case, I am very reluctant to accept the
normal "we'll do the best thing no matter how long it takes us to get around
to it."  I'm looking for something to put out the fire here, and I think we
should be willing to spend a little money to do it.

I think it's a very serious problem, making dialin users go through the
telnet queue.  Argue about the seriousness if you like, but if you agree
that it's serious then we ought to do something about it pronto.  Buying a
power supply is something we can do.  If it doesn't work, then at least we
tried, and we can sell the thing to someone else. 

scg
response 16 of 77: Mark Unseen   Oct 30 06:19 UTC 1997

I disagree that it's a serious problem.  It seems like a somewhat silly use
of resources, I agree, given that if we're paying for phone lines we might
as well use them, but that's a financial problem, not an interface problem.
I have no reason to dial in at this point, since the Net connection is good
enough.  That means that I wait in the queue no matter what.  It's not the
nicest system in the world, but some people here are making getting into the
queue sound like the worst thing in the world.  Really, the queue isn't a big
deal.

A mostly unrelated side issue is that we really shouldn't be doing anything
that would promote the dial-up modems as a better way to access Grex than
the Internet connection.  Dial-up lines are expensive, so we should really
be encouraging anybody who has other ways to get in to do so.
krj
response 17 of 77: Mark Unseen   Oct 30 07:04 UTC 1997

Steve, having recently visited your place and worked with your 
computer setup, I think that you need to put yourself in the place of a 
Grex user who is somewhat less fortunate than you.  
 
Grex users who have PPP-capable setups, multiple windows, and a 
commerical ISP -- for them, the telnet queue isn't a big problem.  Stick 
the telnet queue in a window and go do something else.
 
But grex has a lot of users on heritage equipment, and we have users who 
don't have a commercial or academic ISP.  For those users -- putting 
the local dial-ins into the telnet queue is pretty much the same as 
crippling local dial-in access beginning at 11 pm - midnight every night.
 
I'm not sure what the right approach is here -- I'm somewhat partial 
towards trying to avoid work on the current system to point resources
at the Sun 670.  But I don't think we can declare this a non-problem.
aruba
response 18 of 77: Mark Unseen   Oct 30 07:48 UTC 1997

People in Ann Arbor who don't have ISPs are one one the prime groups who
can benefit from the Grex community, and I want to encourage them at every
step.  Not to mention (as I am about to, for the umpteen billionth time)
that they are a large part of what is keeping Grex alive financially.
Putting them into the telnet queue is a great way to discourage them.

I will fight tooth and nail to keep our local dialin numbers robust and
convenient.

valerie
response 19 of 77: Mark Unseen   Oct 30 15:42 UTC 1997

This response has been erased.

e4808mc
response 20 of 77: Mark Unseen   Oct 30 19:09 UTC 1997

Ooooh, heritage equipment! My Mac Plus and my PowerBook 150 now have an
identity.   And I am one of those who lacks a commercial or academic ISP. 
When the dial-ins dont work, I dont have an office with snazzy equipment to
go to.  DIaling is in not a simple at-home convenience for me.  It is the only
way I can get to other computers.
orinoco
response 21 of 77: Mark Unseen   Oct 30 22:34 UTC 1997

What _is_ groupie?
jared
response 22 of 77: Mark Unseen   Oct 31 02:00 UTC 1997

groupie is a terminal server
orinoco
response 23 of 77: Mark Unseen   Oct 31 03:24 UTC 1997

um...
scg
response 24 of 77: Mark Unseen   Oct 31 05:50 UTC 1997

Going through the telnet queue is the only way many people can get to Grex.
Even many of our telnet users have ancient equipment, which they use to dial
into somwhere they can telnet out from.  They deal with it.  At the same time,
I would imagine that most of our dial-up users probably are using some sort
of Windows terminal program that they could put in the background by doing
something else.  I guess I don't understand what it is about dial-up users
that makes the incapable of dealing with something we all seem to agree was
a big improvement when it was instituted for telnet users.  No, it's not a
great use of resources, but it's not the huge problem people seem to think
it is either.
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