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<p>After I read your letter, I said to myself, "Gee, I don't ever
remember setting anything..." So I went and looked through the
command files and the reason for that lapse of memory is ... I
don't have a <i>single</i> command in any command or
configuration file for LAT. Not a one!</p>
<p>The monitor enables LAT, NVT, NRT and CTERM terminal services
when you do a <font size="4" face="monospace">^E SET LOGINS ANY</font>.
You can also enable them one at a time.<br>
</p>
<p>Back when I had a Pathworks CD-ROM and a working Windows 2000
box, Windows 2000 Kermit could make a connection just fine, so I
never bothered thinking anything further about that part of it,
assuming that the monitor was supplying itself with reasonable
defaults. If I take a look at the characteristics of the local
LAT host, I see the following:</p>
<blockquote>
<p><font size="4"><tt>LCP>shoW chARACTERISTICS </tt><tt><br>
</tt><tt>LCP></tt><tt><br>
</tt><tt>17:28:53 [LCP] -- Host Characteristics --</tt><tt><br>
</tt><tt><br>
</tt><tt>LAT Access State: ON</tt><tt><br>
</tt><tt>Host Name: TOMMYT</tt><tt><br>
</tt><tt>Host id: TOMMYT, PANDA TOPS-20 Monitor 7.1(21740)-5</tt><tt><br>
</tt><tt>Host number: 520</tt><tt><br>
</tt><tt>Retransmit Limit: 60</tt><tt><br>
</tt><tt>Retransmit Timer: 1000</tt><tt><br>
</tt><tt>Multicast Timer: 30</tt><tt><br>
</tt><tt>Groups: 0</tt><tt><br>
</tt><tt><br>
</tt><tt> Current Maximum</tt><tt><br>
</tt><tt> ------- -------</tt><tt><br>
</tt><tt>Allocated circuits 0 32</tt><tt><br>
</tt><tt>Active circuits 0 20</tt><tt><br>
</tt><tt>Sessions 0 5</tt><tt><br>
</tt><tt><br>
</tt><tt> Service Name Rating Identification</tt><tt><br>
</tt><tt>-------------------- ------
------------------------</tt><tt><br>
</tt><tt>TOMMYT 1 TOMMYT, PANDA TOPS-20
Monitor 7.1(21740)-5</tt><tt><br>
</tt><tt>LCP> </tt></font> <br>
</p>
</blockquote>
<p>I don't see anything in there about service groups. Let me go
see if I have an Tops-20 specific documentation for LAT
configuration and see about groups. Otherwise, I'll put that
aside for the moment as I am just coming out of a very deep rabbit
hole.</p>
<p>What kind of a bunny hole? Well...<br>
</p>
<p>In order to debug something in <font size="4"><tt>ALGOTS</tt></font>,
I needed symbols and set up a Program Data Vector (<font size="4"><tt>PDV</tt></font>)
so <font size="4"><tt>DDT</tt></font> could grab them. That was
easy enough because <font size="4"><tt>LINK</tt></font> did the
work for me. However, the problem in <font size="4"><tt>ALGOTS</tt></font>
indicated that something had gone amiss in <font size="4"><tt>PA1050</tt></font>
(Tops-20's TOPS-10 <font size="4"><tt>UUO</tt></font> emulator).
However, I couldn't have LINK do the job for me there because <font
size="4"><tt>PA1050</tt></font> <font size="4"><tt>BLT</tt></font>'s
itself around in the virtual address space in a postlude. The
code appears to predate <font size="4"><tt>.PSECT</tt></font>'s.
So what <font size="4"><tt>LINK</tt></font> would put in would be
wrong. Therefore I crafted a <font size="4"><tt>PDV</tt></font>
for PA1050 by hand in the postlude which promptly hung <font
size="4"><tt>DDT</tt></font> solid...</p>
<p>I'm just about done fixing <font size="4"><tt>DDT</tt></font> so
I can figure out what it is that <font size="4"><tt>PA1050</tt></font>
is doing that <font size="4"><tt>ALGOTS</tt></font> doesn't like,
fix that and then get back to fixing <font size="4"><tt>ALGOTS</tt></font>.<br>
</p>
<div class="moz-cite-prefix">So it goes...<br>
</div>
<div class="moz-cite-prefix">
<hr width="100%" size="2">On 10/28/21 4:25 AM, Johnny Billquist
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:83a6e16f-d837-a83e-3f24-2f82a01e4d0f@softjar.se">First
of all, check what service groups you have enabled on the '20,
since that normally will limit what is shown.
<br>
<br>
Service groups is a LAT specific thingy, so you might need to go
and dig deep into LAT specific things here...
<br>
<br>
Second, I've had plenty of issues using llogin from Linux to RSX
hosts as well. There are some things that the Linux implementation
definitely do wrong. I tried to look at it once, but decided that
the code was so ugly that I didn't want to figure it out, and
should rewrite it instead. But I have too many other projects to
ever have gotten around to it.
<br>
<br>
Johnny
<br>
<br>
On 2021-10-28 02:08, Thomas DeBellis wrote:
<br>
<blockquote type="cite">I had 'a bit' of DECnet 'partly' running
on an Ubuntu machine some time ago... Well, not exactly: I only
put LAT up because I wanted to test something and LAT isn't
actually DECnet. The Ubuntu host knows about everybody:
<br>
<br>
slogin@neptune:~$ sudo latcp -d -l -v
<br>
<br>
Service Name: NEPTUNE
<br>
Service Status: Available
<br>
Service Ident: Linux 5.4.0-42-generic
<br>
<br>
Node Name Status Rating Identification
<br>
NEPTUNE Reachable 10 Linux 5.4.0-42-generic
<br>
--------------------------------------------------------------------------------<br>
<br>
Service Name: TOMMYT
<br>
Service Status: Available
<br>
Service Ident: TOMMYT, PANDA TOPS-20 Monitor 7.1(21740)-5
<br>
<br>
Node Name Status Rating Identification
<br>
TOMMYT Reachable 1 TOMMYT, PANDA TOPS-20
Monitor
<br>
7.1(21740)-5
<br>
--------------------------------------------------------------------------------<br>
<br>
Service Name: VENTI2
<br>
Service Status: Available
<br>
Service Ident: VENTI2, PANDA TOPS-20 Monitor 7.1(21742)-5
<br>
<br>
Node Name Status Rating Identification
<br>
VENTI2 Reachable 1 VENTI2, PANDA TOPS-20
Monitor
<br>
7.1(21742)-5
<br>
----------------------------------
<br>
<br>
The 20's only seem to know about the Ubuntu host:
<br>
<br>
LCP>shoW serVER /alL
<br>
LCP>
<br>
<br>
19:43:26 [LCP] -- Summary of All Servers --
<br>
<br>
Server Name(Number): NEPTUNE(0) Address: 6C-4B-90-3A-42-73
<br>
LCP>
<br>
<br>
LCP>shoW servER NEPTUNE
<br>
LCP>
<br>
19:41:10 [LCP] -- Information About Server NEPTUNE --
<br>
<br>
Server Number: 0
<br>
Server Location: LATD for Linux
<br>
Server Type: VAX/VMS
<br>
Ethernet Address: 6C-4B-90-3A-42-73
<br>
Server Status: Disconnected
<br>
Max Slots: 254
<br>
Data Link Size: 1500
<br>
Circuit Timer(ms): 80
<br>
Keep-alive Timer(s): 20
<br>
<br>
LCP>shoW couNTERS /serVER:NEPTUNE
<br>
LCP>
<br>
19:40:36 [LCP] -- Counters for Server NEPTUNE --
<br>
<br>
Messages received: 2
<br>
Messages transmitted: 1
<br>
Messages retransmitted: 0
<br>
Sequence errors received: 0
<br>
Illegal messages received: 0
<br>
Illegal slots received: 0
<br>
Resource failures: 0
<br>
LCP>
<br>
<br>
At some point, I'm fairly certain I remember them being able to
'see' each other. I had a Pathworks CD-ROM for Windows 2000,
but I can't find that and the Windows 2000 laptop I was using
has caught a very bad cold (I.E., it won't boot)
<br>
<br>
llogin operation has been erratic. At one point it worked
mostly to the 20's, but was not stable. Now it fails in one of
two ways: 1) To a 20, it fails silently with no error message
at all. 2) To an Ubuntu host, it succeeds in connecting, and
then starts spewing, viz
<br>
<br>
slogin@neptune:~$ llogin neptune
<br>
Ubuntu 20.04.1 LTS
<br>
neptune login: Ubuntu 20.04.1 LTS
<br>
neptune login:
<br>
<br>
neptune login:
<br>
sllllooooggggiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii<br>
<br>
I've never complained about it because I wanted to investigate
further and maybe either fix what I was doing wrong (undoubtedly
the real problem) or at least fix it to give better error
diagnostics.
<br>
<br>
I haven't looked at the 20's because I've been occupied fixing
bugs of more direct concern to me.
<br>
<br>
If the 20 had a LAT client, I might look further, but I don't
what the scale of that work would be. Right now, I'm trying to
stay away from big projects and just finish the ones that I have
in flight.
<br>
<br>
------------------------------------------------------------------------
<br>
<br>
<br>
On 10/26/21 3:11 PM, John Forecast wrote:
<br>
<blockquote type="cite">
<br>
<br>
<blockquote type="cite">On Oct 26, 2021, at 7:57 AM,
<a class="moz-txt-link-abbreviated" href="mailto:fsword007@gmail.com">fsword007@gmail.com</a> wrote:
<br>
<br>
Folks,
<br>
I successfully installed DECnet/Python on Ubuntu 21.10
system and was successfully connected to HECnet.
<br>
I have a few questions about DECnet/Python. I choose that
because it support virtual circuits like Multinet over TCP,
etc..
<br>
I can’t find any apps (programs) to support DECnet/Python
like login, set host, dir, etc. Only DECnet for Linux has
programs.
<br>
Does DECnet for Raspberry Pi work with Ubuntu 21.10 (Linux
5.13 for x86)?
<br>
</blockquote>
<br>
I’ve never tried Ubuntu but I have built DECnet for Raspberry
Pi on an older version of Debian x86 without any problems. My
suggestion would be to try it. Due to family medical issues I
will be unable to check it out until December at the earliest.
<br>
<br>
John.
<br>
<blockquote type="cite">Tim
<br>
</blockquote>
<br>
</blockquote>
</blockquote>
<br>
</blockquote>
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