At 04:29 PM 5/30/2003 -0700, glenn greenfield wrote: [...]
I have recently acquired a 486 laptop and thought I might use it to ssh into my router. Can I do that through a null modem cable?
You can, but offhand, I see no benefit in doing so. You can just run a regular getty on a serial port and log into a shell, without the overhead of ppp and ssh (since it is a serial connection, there is no real issue of snooping on the line, so the connection does not need encrypting).
I think Bering even has in /etc/inittab a commented-out line to run a getty (or maybe mgetty or agetty or mingetty ... one of the common variants, anyway) process on each standard serial port (ttyS0 and ttyS1). So you just need to uncomment a line and re-hup init for testing .. if it works, backup the modified system to a floppy.
On the client end (the 486 laptop), you run any convenient terminal-emulation application ... minicom is the common console-based app, and seyon is on X-based app.
The advantage of running ppp over the serial port is that it lets you do things other than ssh ... scp, ftp, whatever. You should consider whether you need that functionality, or if you really just require a console for plug-in management of a headless system.
I could also buy a
pcmcia card OR I have already built a DB9 to RJ45 adapter. Is it possible to use your LEAF construction kit to build a distro to use in this way? I have
read a little about SLIP/ppp* it seems that they aren't the same and yet they tend to be grouped together. I have a completely secure LAN -that is to
say that no one here could care in the slightest about routers and things. I won't be accessing it from the outside.
Oh and BTW- there is no math co-processor on this laptop. It has a 121M hdd- 8M RAM. Perhaps I could use the hdd to build the disks and still boot
a floppy to make the connection?
What would be the easiest way to configure Bering on the router for this type of application?
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