HECnet May 2013

hecnet@lists.dfupdate.se

38 participants
680 discussions

Console terminal switch and/or reverse terminal server suggestion?

by mcguire＠neurotica.com

I do have a Chase IOLan console server that I could be convinced to turn loose of. -Dave On 05/14/2013 11:07 AM, Bob Armstrong wrote: Guys Here s the situation I ve got several PDP11s and a couple of PDP8s and I want them all to be able to share a single console terminal. I could just use an old fashioned RS232 switch box, but I was looking for something better. For one thing, a smart switch that would actually buffer output from the unselected ports would be nice, and it d be nice to be able to change the selected port from the terminal keyboard. What d be idea is something like the multi session support that some of the later VTxxx terminals had, but with multiple physical ports and without any special host software. It d also be nice if I wasn t limited to just one physical console but I could use any terminal anywhere on the network too. I thought about using a DECserver in reverse LAT for this, but AFAIK the only way to connect to a DECserver in reverse is from a real host system, like VMS or RSX. That means my console terminal would have to connect to a VAX, log in, and from there connect out again to the DECserver and the PDP-11 or 8 console port. Kinda complicated and ugly. I don t think there s any way to have one terminal server connect directly to another terminal server w/o a host system in between, at least not with LAT. Telnet would be OK, if anybody can recommend a multi-port telnet terminal server that works in reverse. It d be especially cool if it can telnet to itself then I could just connect directly from one port on the server to another. Anyway, I was thinking that I can t be the only collector with a bunch of computers and room for only one console, so I thought I d ask what other people are using. Thanks, Bob -- Dave McGuire, AK4HZ New Kensington, PA

11 years, 6 months

Reviving the DECnet on TOPS-10 project

by mcguire＠neurotica.com

On 05/14/2013 10:23 AM, Gregg Levine wrote: These problems are also Dave's fault as supplied by four dozen Yetis, and an equal amount of Cybernen. And not your fault completely Cory, outside of tempting the deities of the ceiling. (Now if that implied science fiction reference misses you please ask off list.) Oh that is SO not my fault. -Dave -- Dave McGuire, AK4HZ New Kensington, PA

11 years, 6 months

Console terminal switch and/or reverse terminal server suggestion?

by mcguire＠neurotica.com

On 05/14/2013 11:23 AM, Bob Armstrong wrote: *>*I use Livingston Portmasters (like the 2e). Do you mean like this http://www.ebay.com/itm/Livingston-Portmaster-2E-PM2E-24-port-Communication… It s a big guy, isn t it ?? Can it connect directly from one port to another? I'd say that's pretty compact for thirty ports. Like Ian, I deployed and maintained lots and lots of these at dialup ISPs in the 90s. They are amazingly good boxes. -Dave -- Dave McGuire, AK4HZ New Kensington, PA

11 years, 6 months

Console terminal switch and/or reverse terminal server suggestion?

by b4＠gewt.net

On Tue, 14 May 2013, Gregg Levine wrote: On Tue, May 14, 2013 at 12:04 PM, Cory Smelosky <b4 at gewt.net> wrote: On Tue, 14 May 2013, Bob Armstrong wrote: Johnny Billquist wrote: But any terminal server can also setup a service. Fred wrote: Created services on the DECServer that allow me to connect to the console of any host from any other host. I didn't think a DECserver could do this (or at least not an old, stupid one like a 100 or 200). You guys are saying it can? I've done it fine on my DECserver 200/MC. She's smarter than you think. ;) I'll go dust off an old DECserver and plug it in, and then I'll give it a try. Bob -- Cory Smelosky http://gewt.net/ Personal stuff http://gimme-sympathy.org Experiments Hello! I'll say. I have a collection of 90L-Pluses here. Getting them to work is an interesting problem. I'm basically trying to find the rack that they use to enable a more normal Ethernet connection to them, but it's slow going. If you have a collection, i'll take one! ;) Also, did you ever get those SCSI controllers to work? ----- Dave don't do that. Stop staring. **Sounds of explosions are heard as something outside his building explodes covering the windows in green goo.** ----- Gregg C Levine gregg.drwho8 at gmail.com "This signature fought the Time Wars, time and again." -- Cory Smelosky http://gewt.net/ Personal stuff http://gimme-sympathy.org Experiments

11 years, 6 months

Console terminal switch and/or reverse terminal server suggestion?

by rok.vidmar＠gmail.com

I thought about using a DECserver in reverse LAT for this ... You don't need reverse LAT: just define services on ports connected to the consoles and you can connect to them from any regular port on the same server. -- Regards, Rok

11 years, 6 months

Console terminal switch and/or reverse terminal server suggestion?

by hvlems＠zonnet.nl

Use reverse lat on all but one port and connect a vtx00 to it. Van: Bob Armstrong Verzonden: dinsdag 14 mei 2013 17:07 PM Aan: hecnet at Update.UU.SE Beantwoorden: hecnet at Update.UU.SE Onderwerp: [HECnet] Console terminal switch and/or reverse terminal server suggestion? Guys Here s the situation I ve got several PDP11s and a couple of PDP8s and I want them all to be able to share a single console terminal. I could just use an old fashioned RS232 switch box, but I was looking for something better. For one thing, a smart switch that would actually buffer output from the unselected ports would be nice, and it d be nice to be able to change the selected port from the terminal keyboard. What d be idea is something like the multi session support that some of the later VTxxx terminals had, but with multiple physical ports and without any special host software. It d also be nice if I wasn t limited to just one physical console but I could use any terminal anywhere on the network too. I thought about using a DECserver in reverse LAT for this, but AFAIK the only way to connect to a DECserver in reverse is from a real host system, like VMS or RSX. That means my console terminal would have to connect to a VAX, log in, and from there connect out again to the DECserver and the PDP-11 or 8 console port. Kinda complicated and ugly. I don t think there s any way to have one terminal server connect directly to another terminal server w/o a host system in between, at least not with LAT. Telnet would be OK, if anybody can recommend a multi-port telnet terminal server that works in reverse. It d be especially cool if it can telnet to itself then I could just connect directly from one port on the server to another. Anyway, I was thinking that I can t be the only collector with a bunch of computers and room for only one console, so I thought I d ask what other people are using. Thanks, Bob

11 years, 6 months

Console terminal switch and/or reverse terminal server suggestion?

by uusimaki＠exdecfinland.org

On 14.5.2013 18:32, Johnny Billquist wrote: On 2013-05-14 17:07, Bob Armstrong wrote: Guys Here s the situation I ve got several PDP11s and a couple of PDP8s and I want them all to be able to share a single console terminal. I could just use an old fashioned RS232 switch box, but I was looking for something better. For one thing, a smart switch that would actually buffer output from the unselected ports would be nice, and it d be nice to be able to change the selected port from the terminal keyboard. What d be idea is something like the multi session support that some of the later VTxxx terminals had, but with multiple physical ports and without any special host software. It d also be nice if I wasn t limited to just one physical console but I could use any terminal anywhere on the network too. I thought about using a DECserver in reverse LAT for this, but AFAIK the only way to connect to a DECserver in reverse is from a real host system, like VMS or RSX. That means my console terminal would have to connect to a VAX, log in, and from there connect out again to the DECserver and the PDP-11 or 8 console port. Kinda complicated and ugly. I don t think there s any way to have one terminal server connect directly to another terminal server w/o a host system in between, at least not with LAT. Telnet would be OK, if anybody can recommend a multi-port telnet terminal server that works in reverse. It d be especially cool if it can telnet to itself then I could just connect directly from one port on the server to another. Anyway, I was thinking that I can t be the only collector with a bunch of computers and room for only one console, so I thought I d ask what other people are using. No. Any DECserver can act both as ingress and egress, without any intermediate system. What you need to do is to set up a service. Any computer with LAT can set up one or several services. But any terminal server can also setup a service. And with a terminal on a DECserver, you connect to a service. Don't matter who is presenting the service. Reverse LAT is slightly different, in that you can connect to an outgoing port on a DECserver without using a service, by using reverse LAT. You just tell which DECserver, and which port on that DECserver to connect to. But you don't need reverse LAT in your case. Connect all console interfaces to ports on a DECserver. Define all ports access as remote, and setup services for all of them, and you're in business. However, as you note, they will not really buffer anything, so it's not perfect. You'd need something like screen in Unix, with connections to each machine, in order to get buffering and so on working they way you want. Johnny . If you want to log all the output from each console, there is a DEC product called Console Manager (runs on VMS), which does it. From a terminal session you can then connect to any of the consoles you want to manage - one at a time. It is a licensed product, yes, but if you are lucky, you might find licenses for it. CM can also monitor each of the console output logs for (user) specified strings and alert you when found. Kari

11 years, 6 months

Console terminal switch and/or reverse terminal server suggestion?

by gregg.drwho8＠gmail.com

On Tue, May 14, 2013 at 12:04 PM, Cory Smelosky <b4 at gewt.net> wrote: On Tue, 14 May 2013, Bob Armstrong wrote: Johnny Billquist wrote: But any terminal server can also setup a service. Fred wrote: Created services on the DECServer that allow me to connect to the console of any host from any other host. I didn't think a DECserver could do this (or at least not an old, stupid one like a 100 or 200). You guys are saying it can? I've done it fine on my DECserver 200/MC. She's smarter than you think. ;) I'll go dust off an old DECserver and plug it in, and then I'll give it a try. Bob -- Cory Smelosky http://gewt.net/ Personal stuff http://gimme-sympathy.org Experiments Hello! I'll say. I have a collection of 90L-Pluses here. Getting them to work is an interesting problem. I'm basically trying to find the rack that they use to enable a more normal Ethernet connection to them, but it's slow going. ----- Dave don't do that. Stop staring. **Sounds of explosions are heard as something outside his building explodes covering the windows in green goo.** ----- Gregg C Levine gregg.drwho8 at gmail.com "This signature fought the Time Wars, time and again."

11 years, 6 months

Console terminal switch and/or reverse terminal server suggestion?

by b4＠gewt.net

On Tue, 14 May 2013, Bob Armstrong wrote: Johnny Billquist wrote: But any terminal server can also setup a service. Fred wrote: Created services on the DECServer that allow me to connect to the console of any host from any other host. I didn't think a DECserver could do this (or at least not an old, stupid one like a 100 or 200). You guys are saying it can? I've done it fine on my DECserver 200/MC. She's smarter than you think. ;) I'll go dust off an old DECserver and plug it in, and then I'll give it a try. Bob -- Cory Smelosky http://gewt.net/ Personal stuff http://gimme-sympathy.org Experiments

11 years, 6 months

Console terminal switch and/or reverse terminal server suggestion?

by bob＠jfcl.com

Ian McLaughlin wrote: Not sure what you mean by connect from one port to another? You log in to the terminal server. At this point you can attach to any other port Yep, that's exactly what I mean. It means the real VTxxx console terminal as well as the other PDPs can all be connected to the same server. It also means I don't have to turn on or boot up anything else to get it to work except that terminal server. Thanks, Bob

11 years, 6 months

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HECnet May 2013