The North Manchester group are having another meeting at the "The Three Arrows"
Tuesday 22 July at 20:00.
If you have an interest in wireless networking, you are most welcome to attend.
If you don't know the form by now look down the Blog for the last four of these.
Follow the comments for a brief review :)
"The Three Arrows" is just off junction 19 of the M60.
(If you are coming around the M60 clockwise, the M60 mutates into the M62 at junction 18. If you miss the exit onto the M60 at junction 18 you wind up at Junction 19 on the M62, which is not the junction you want. The M60 leaves the M62 at junction 18 via a sliproad and roundabout, the junction 19 you want is the first junction on the M60 after that roundabout.)
For full directions to see the entries for previous meetings, earlier in this blog.
If you plan to come, tell the mailing list or message harry@shoka.net
This note is to confirm that the North Manchester group wlll be having a "mini-meeting" at "The Three Arrows" on Tuesday 8 July at 20:00.
This is likely to be a small group as holidays and commitments have depleted numbers.
However Rob Kyle is available, and a few others have shown interest, so I intend to go ahead.
The Three Arrows is just off junction 19 of the M60.
For full directions to see the entries for previous meetings, earlier in this blog.
The next full meeting will be on 22 July. The majority of "regulars" seem to be available then.
Harry Moyes
I'm testing routing on my network of radio nodes.
This involves a lot of root access to the nodes and file moves
through my firewall. Repeated setting up of root sessions to
each node every time I set up to test was getting under my skin,
so when I came across this tech note it motivated me to come up
with something easier.
The section titled Secure shell - Simple Remote Login
caught my eye. What follows is a cookbook set up largely derived
from that note. Note this is only appropriate from a Linux
workstation. Something similar may be possible from Windows
but I'm the wrong person to ask if it is.
The following works on RedHat 8.0 and 9.0 at least.
My main workstation runs KDE
First
Generate yourself a pass phrase of a strength you are happy with.
For a reasonable discussion and recommendations.
Second
On a console terminal (Konsole, xterm, eterm etc)
on your "Safe, secure, internal" workstation, type:-
ssh-keygen -t rsa
To generate a 1024 bit RSA key.
Secure this key with your shiny new pass phrase.
Third
Copy the file .ssh/id_rsa.pub (your new public key you
just generated) to :-
/root/.ssh/authorized_keys
on the target nodes that you want to control.
SCP is your friend! ;)
(append the key if the file already exists)
Fourth
Test by typing:-
ssh-agent /bin/bash
ssh-add
and answering the prompt with your shiny new pass phrase.
then:-
ssh -v root@yournode
and if all is well, you have a root session on yournode
Fifth
Automate this with a script file as below
(names resolve to router node addresses via my local DNS)
#! /bin/bash
ssh-agent /bin/bash &
ssh-add
konsole -e ssh root@pei &
konsole -e ssh root@aichen &
konsole -e ssh root@liang &
This will open three concurrent console windows and from each
start an ssh connection to a target node, automatically authenticating
you via the public key held on the remote node.
The foreground console remains open and also has access to your keyfile
so an SCP command from here, for instance, will automatically and
securely authenticate to the target node, without further action
on your part.
I have this script as startall
I admit I posed the windows, but the logins are real...
Harry Moyes