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).
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.
Note,
distributed.net is running in the background on the Cube and it?s not really as
?nice? as it claims it is, so an unloaded 68040 would be faster. However I think it?s
reasonable to assume 10 seconds of crunch for a 25 MHz 68040 with nothing else running.
sftp to that box is notably slower than ftp as well, If you need I can run comparisons
but at this point it?s deep into YMMV territory.
Hopefully that?ll help guess what a PDP 11 would be able to do. I have not done any
attempt at optimizing or testing non-default encryption methods.
- Mark