On May 8, 2014, at 2:01 PM, Tapley, Mark <mtapley at swri.edu> wrote:
On May 8, 2014, at 12:00 PM, <roe at liveblockauctions.com> wrote:
Has anyone seen a port of ssh/sshd for 2.11BSD?
I'm just a bit uncomfortable using telnet on my pdp11/83.
I concur with others who are leery of the compute load. Some time ago, I blithely
plopped a version of SSH on my NeXT 68040 cube:
mtapley2> ssh -h
ssh: SSH Secure Shell 3.2.9.1 (NEXTSTEP) on i386-next-openstep4
Copyright (c) 1995-2002 SSH Communications Security Corp
SSH is a registered trademark and Secure Shell is a trademark of
SSH Communications Security Corp (
www.ssh.com).
All rights reserved. See LICENSE file for usage and distribution terms.
The comments are wrong, it?s a 68040, I?ve seen it, and the OS is NS 3.2. :-)
Then, logging in from my MacBook on the same local net:
mtapley3:dnetc518-macosx-amd64 mtapley$ ssh me at xxx.xxx.xxx.xxx
<...17 clock seconds later...>
me at xxx.xxx.xxx.xxx's password:
(edited my user name and IP address, obviously).
There are a lot of hairy asymmetric crypto operations happening by the time you get there.
Once you?re past that point, things aren?t quite so bad.
DES has been used for password hashing for a long time. It? not great but it should be ok
for terminal interaction.
Here?s part of the report from ps -aux:
mtapley2> ps -aux
USER PID %CPU %MEM VSIZE RSIZE TT STAT TIME COMMAND
mark 258 95.9 0.9 2.02M 608K p1 R N 4655hr ./dnetc -quiet
?
root 173 0.0 0.5 1.38M 328K ? SW 0:06 (sshd2)
?
Tolerable RAM footprint on the NeXT, looks severe to me for a PDP.
1.3 MB would certainly be a problem, as would 328k for that matter. You?d have to do some
fairly serious overlays.
paul