Re: persistent xterm sessions

["Jarod Wilson" <user=74@nabble.blu.org>]

 On Mon, 2008-06-09 at 23:09 -0400, Tom Metro wrote: 
> Jarod Wilson wrote: 
> > I have a thought... Serial console connections, managed by a console 
> > manager, which lets you reconnect to the serial console session, plays 
> > back log of prior stuff, etc... 
> 
> Interesting, but I'm not sure I see how that accomplishes the stated 
> goals. 

I'm honestly not even sure what the original stated goals were, I wasn't 
paying attention... :) 

> Lets ignore the hardware issues for the moment, and presume that 
> conman can manage an ssh connection that loops back to the local 
> machine, so we don't need to worry about having physical serial ports 
> for each shell session. 

I think it may actually be able to do that. It does support a lot more 
than just direct serial consoles. 

> > I have serial console output set up on a number of boxes in my cube. 
> > These are hooked up to server machine...[which] runs the conman daemon... 
> > I run the conman client on my laptop, instructed to point at the server. 
> > A simple 'conman foo' in an xterm gives you serial console on machine 'foo'. 
> 
> OK, so the client-server model used by conman lets you attach and detach 
> to an already running shell. I see it supports logging, but what about 
> in-memory scrollback buffer. That's really more of a UI function than a 
> serial console function. 

It does scrollback too. 

> It sounds like screen is a better fit for the described problem. So far 
> I'm not seeing anything that conman does to address the gaps in the 
> screen approach. A reboot of the local machine still wipes away all 
> state with either approach, if the shells are running on the local machine. 

In my case, a reboot of my laptop has zero impact on what is going on in 
a conman-attached session. A reboot of the machine running the conman 
daemon does though. I suspect my use case doesn't match yours 
though... :) 


-- 
Jarod Wilson 
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