George at Clug | 4 Feb 02:37 2016

Re: [clug] daemon

     Hi Bob, I am not receiving emails via the CLUG email system.

Is there someone who can looking into that for me?  

My email server could have been blocked for not receiving emails.




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Bryan Kilgallin | 3 Feb 09:51 2016

[clug] Dillo

I'm using version 3.0.2. How can I print?



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Tony Lewis | 1 Feb 11:46 2016

[clug] Why is my SSH port forwarding failing all of a sudden?

Hi all,

I SSH to my server, and use local port forwarding to reach in to other 
servers.  It was working a treat until today.

Nothing changed on the server or client configs, though the clients 
(Cygwin) did upgrade from
     OpenSSH_7.1p1, OpenSSL 1.0.2d (XX) Aug 2015
     OpenSSH_7.1p2, OpenSSL 1.0.2f 28 Jan 2016

I tried downgrading but can't go back to earlier than OpenSSH 1.0.2e.  I 
am having the same problem on my Linux desktop also.

The problem is at the tunnel server.  In /var/log/auth.log I see:
     Received request to connect to host blah.domain port 22, but the 
request was denied.

Googlage indicates proposed solutions that involve enabling port 
forwarding.  But I have no AllowTcpForwarding directive, and the default 
is "yes".  There are no PermitOpen directives (though I tried them) and 
the result is the same with or without the PermitTunnel directive.

The authorized_keys file contains only keys, no restrictions (e.g. no 

I know the problem is with the server, because it makes no attempt on 
the network to establish a connection to my destination server. 
Something in the server is administratively blocking my port forwarding.

(Continue reading)

Bob Edwards | 1 Feb 03:22 2016

Re: [clug] CLUG meeting Jan 28th - slides

On 01/02/16 13:18, Bob Edwards wrote:
> On 30/01/16 21:31, Chris Smart wrote:
>> On 21/01/16 23:01, Chris Smart wrote:
>>> Topic:
>>> A journey in home automation, part 1
>>> Background on starting a HA project, design decisions, prototyping,
>>> installation and introducing dumb mode (with pictures!).
>> Thanks to everyone who came along, was great lively discussion.
>> Here are the slides:
>> Cheers,
>> Chris
> Many thanks Chris. Careful you don't set the bar too high for future
> would-be presenters...
> cheers,
> Bob Edwards.

Ooops - forgot to put the smiley on the end... :-)


(Continue reading)

steve jenkin | 31 Jan 04:39 2016

[clug] [OT] Open Access Data: global submarine cable maps

This is a marker of the progress of Open Source.
The source data is expensive ($25,000/report) and the application quite arcane.
[used by Telecomm Engineers organising International Routes]

TeleGeography’s authoritative map of Submarine Cables, as implemented on their site, is available on
github as a fully working webserver: 

Included are good build instructions and pointers to the geo-data in Google Fusion tables as two overlays
(cables & landing points), downloadable as KML or CSV.


They have commits going back to Sept-2011, if anyone wants to rollback time.

Steve Jenkin, IT Systems and Design 
0412 786 915 (+61 412 786 915)
PO Box 48, Kippax ACT 2615, AUSTRALIA



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Miles Goodhew | 28 Jan 01:01 2016

[clug] Beersig

  At least 2 people should be attending "Beer SIG" tonight before Chris'
highly anticipated preso (Go team!) - Others are welcome.
  I've called and checked the pub will actually be open (Unlike last time).
So come along from 6pm at the Wig and Pen in Llwellyn Hall. There might not
be stuffed penguin to gather around this time - just try talking to any
tables filled with middle-aged nerds and you should be right.


Miles Goodhew,
Executive Computer Scientist

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jm | 22 Jan 04:10 2016

[clug] Book List

Someone did some analysis of books mentioned in the comments of
YCombinator's Hacker News site. Anyone looking for something to read may
find this useful.

Top 30 books ranked by total number of links to Amazon in Hacker News



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Chris Smart | 21 Jan 13:01 2016

[clug] CLUG meeting Jan 28th

Just a follow-up from November that I still plan to give a talk on my
adventures in home automation next Thursday. There won't be lots of
fancy gadgets for you to go gaga over (maybe part 2) but feel free to
come along and heckle.

A journey in home automation, part 1

Background on starting a HA project, design decisions, prototyping,
installation and introducing dumb mode (with pictures!).


 ^ ^


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steve jenkin | 21 Jan 06:45 2016

[clug] A "How to" SSH question: copy file (scp/sftp) to remote system, then trigger a handler on remote.

I’m looking to move files to a remote system with ssh and have the copy trigger something to deal with them.

scp “uses ssh for data transfer”, then sets owner/group, permissions & timestamp of the remote file.

It’s possible to code scp as an ssh command, like:
	ssh remote ‘cat >tmp;chmod tmp;touch +hhmmss tmp;mv tmp destfile’ <srcfile

I’d like to trigger a command on the remote system to do something with the recently arrived file, i.e.
“pick it up” and process it in some way.

In the above pseudo-code above:
	ssh remote ‘cat >tmp;chmod tmp;touch +hhmmss tmp;mv tmp destfile;exec /path/to/command
destfile&’ <srcfile

On some systems, I’ve implemented an ‘incoming’ directory with a background daemon that regularly
scans the directory and process the files one by one if found, otherwise sleeps till next scan.

Not what I want to do here.

An alternative is to execute first the processing command and just pipe the data to it via STDIN, passing in a
Problem with this is:
 a) organising temp dir for large files, and
 b) overloading receiving/processing host with too many simultaneous calls


1. has anyone seen this done? How?
   There are going to be a lot of subtle errors and race-conditions, not the least, clashing filenames from
simultaneous copies.
(Continue reading)

David Tulloh | 12 Jan 04:56 2016

[clug] Pre-LCA dinner

Hello Canberra friends,

I felt a suitable way to welcome you all to my newly adopted town of
Geelong would be to organise a dinner for the Sunday before LCA so we can
all catch up, ply each other with German beers and marvel that it is yet
again time to celebrate LCA style.

So, acting rashly I have made a booking at the Rheingold restaurant for a
small mob. The restaurant features the ceremonial carrying of a pig which
is then carved for the all you can eat buffet. While there are non-pig
vegetarian options I'm afraid I have to warn that it isn't overly
vegetarian friendly.

Please feel free to share with family, colleagues and friends. I would love
to expand the small mob booking to a medium mob. However the venue is of a
limited size so I would prefer to keep the invite off the LCA chat list to
avoid too large a pack.

Three course meal, all you can eat $40
Drinks can be paid as you go or basic all you can drink $40

RSVP so I can ensure there enough places and keep the venue informed,
either through email or the google event link below.


(Continue reading)

freds72 | 12 Jan 00:12 2016

[clug] daemon

Spot the unix reference


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