Mailing List Archive

Access to conserver machine's own console?
Hi,

I was wondering if it's possible to use conserver to get access to the console of the machine which is itself running conserver? And if so, how do you do it? I don't see this mentioned in any documentation or FAQ - sorry if it's there & I missed it.

Consider a linux system with a single serial port which is defined as the kernel's serial console. Some software starts an interactive application during start-up, which displays and accepts input on the serial console. I would like to enable network access to the serial console so that it's possible to interact with this application over the network.

I was hoping to run conserver to enable network access to localhost's serial tty which is running a getty:

[root@jimockers-rh72-1 conserver.cf]# grep ttyS1 /etc/inittab
s1:2345:respawn:/sbin/agetty 9600 ttyS1 vt100

[root@jimockers-rh72-1 conserver.cf]# cat /etc/console/conserver.cf
console simple { master localhost; type exec; rw *; }
access * {
trusted 127.0.0.1;
}

console tty {
master localhost;
type device;
device /dev/ttyS1;
baud 9600;
parity none;
rw *;
}

Of course this does not work because conserver gets an I/O error (as does agetty) when trying to wrestle for control of the port.

What can I do to enable remote network access to the conserver's serial console?

Thanks,
Jim

P.S. The motherboard has only one serial port and we can't add more hardware. Otherwise I would install a null-modem jumper between the two serial ports and use conserver's access to one to log into the other. Oh well.

--
Jim Ockers, P.Eng. (jim.ockers@pason.com)
Contact info: http://www.ockers.ca/pason.html

PS Sorry about mime/html email - I'm unable to turn it off just now.
Re: Access to conserver machine's own console? [ In reply to ]
You can't get access to the port in that manner. You need to be
connected physically to the serial port. One idea is to attach a serial
cable from ttyS0 -> ttyS1.


On Mon, 2006-09-25 at 17:50 -0600, Jim Ockers wrote:
> Hi,
>
> I was wondering if it's possible to use conserver to get access to the
> console of the machine which is itself running conserver? And if so,
> how do you do it? I don't see this mentioned in any documentation or
> FAQ - sorry if it's there & I missed it.
>
> Consider a linux system with a single serial port which is defined as
> the kernel's serial console. Some software starts an interactive
> application during start-up, which displays and accepts input on the
> serial console. I would like to enable network access to the serial
> console so that it's possible to interact with this application over
> the network.
>
> I was hoping to run conserver to enable network access to localhost's
> serial tty which is running a getty:
>
> [root@jimockers-rh72-1 conserver.cf]# grep ttyS1 /etc/inittab
> s1:2345:respawn:/sbin/agetty 9600 ttyS1 vt100
>
> [root@jimockers-rh72-1 conserver.cf]# cat /etc/console/conserver.cf
> console simple { master localhost; type exec; rw *; }
> access * {
> trusted 127.0.0.1;
> }
>
> console tty {
> master localhost;
> type device;
> device /dev/ttyS1;
> baud 9600;
> parity none;
> rw *;
> }
>
> Of course this does not work because conserver gets an I/O error (as
> does agetty) when trying to wrestle for control of the port.
>
> What can I do to enable remote network access to the conserver's
> serial console?
>
> Thanks,
> Jim
>
> P.S. The motherboard has only one serial port and we can't add more
> hardware. Otherwise I would install a null-modem jumper between the
> two serial ports and use conserver's access to one to log into the
> other. Oh well.
>
> --
> Jim Ockers, P.Eng. (jim.ockers@pason.com)
> Contact info: http://www.ockers.ca/pason.html
>
> PS Sorry about mime/html email - I'm unable to turn it off just now.
> _______________________________________________
> users mailing list
> users@conserver.com
> https://www.conserver.com/mailman/listinfo/users

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