Re: [Dorset] [Dorset ] Bournemouth Pub Meeting Tonight, Tuesday 2017-10-03.

2017-10-03 Thread Chris Dennis

On 03/10/17 11:30, Ralph Corderoy wrote:

Hi,

It's the pub meet tonight at The Broadway, 8pm-ish.  For those that
haven't been before look out for a flip of laptops, or stuffed Terry's
penguin.  

Sorry, can't make it tonight.  Maybe next time...

Cheers

Chris



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[Dorset] Linux support in Verwood

2017-09-25 Thread Chris Dennis

Hello Dorset Luggers

Until recently I've been providing ad hoc support for a company in Verwood, 
looking after a Linux server running Samba for file sharing with various 
Windows PCs.

I'm winding down that side of my business now, and the client has asked me if I 
know anyone who could take over.  The next thing that needs doing is upgrading 
the server to Debian 9.

Is anyone here interested?  Please contact me off list if so.

Cheers

Chris


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Re: [Dorset] Skype

2014-12-14 Thread Chris Dennis

I know I'm very late to this party, but has anyone tried this Skype alternative?

https://appear.in/

It uses WebRTC, and claims to be secure.

Cheers

Chris

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Re: [Dorset] Next Meeting - Less than a Week to Go

2014-03-03 Thread Chris Dennis

On 28/02/14 11:40, Peter Merchant wrote:

I do like that. IS a similar sort of thing available for other counties?
P.

No, same Post Code District. BTW, they, along with lots of other
interesting layers, are available for Dorset.
http://explorer.geowessex.com/?search=BH8%209TGlayers=7006,41basemap=26x=410177.42y=94998.12epsg=27700zoom=14
Cheers, Ralph.

A very interesting resource -- but I wonder how accurate it is. Where do they 
get the data from?

According to their flood susceptibility layer, there's an area of open sea 
south of Barton-on-Sea that's liable to flood!

cheers

Chris

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Re: [Dorset] dorset Digest, Vol 469, Issue 1

2013-01-15 Thread Chris Dennis

On 15/01/13 17:44, Sean Gibbins wrote:



Doubtless true Graeme, but did it run Linux?

They can have Windows and other proprietary operating systems to wage
war and kill more efficiently, but can they not leave Linux alone?

Sean


Would you rather that the machineries of war run on a stable, secure 
operating system, or on the other one?


Chris

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Re: [Dorset] Options for a 'new' machine

2012-04-02 Thread Chris Dennis

On 02/04/12 21:19, Victor Churchill wrote:

2. Have any other disenchanted Ubuntu users settled on an alternative
system that suits them?


On computers that I've set up for other people, I've started using XFCE 
(i.e. Xubuntu), rather than a Unity or Gnome-based system.  I haven't 
tried Mint yet.


And for my own everyday machine, I've taken the more radical step of 
switching to Arch Linux (with XFCE).  Arch is like Gentoo but without 
all the compiling: it's very cutting edge (currently using a 3.2.11 
kernel) but on the other hand I've found it to be very stable, with the 
latest versions of everything.  Compared with Ubuntu, you have to do a 
lot of configuring yourself, but the wiki is full of excellent 
documentation.


cheers

Chris
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Re: [Dorset] HUD

2012-01-25 Thread Chris Dennis

On 24/01/12 22:20, Victor Churchill wrote:

On 24 January 2012 20:27, Terry Colesd-...@hadrian-way.co.uk  wrote:


On Tuesday 24 Jan 2012 19:35:51 Victor Churchill wrote:

Be afraid, be very afraid ... I feel a GOM moment coming on ;-(


All right, I'll bite; what is GOM?  (Grumpy Old Man?  Not you Victor.)



'fraid so, Terry. OK, I may not seem Grumpy at the Broadway, but that's a
pub :-) I have been finding for the last couple of Ubuntu releases that
it's getting more shiny and phone/tablet friendly, and less friendly to my
vintage of hardware(*). The developers' idea of what the system should be
like seems to be diverging from mine.  I have even started wondering about
moving to Mint but inertia has prevented me so far.


Me too.  For clients whom I've persuaded to try Linux, I've started 
using Xubuntu instead of Ubuntu -- i.e. XFCE4 instead of those 
new-fangled 'Unity' and 'Gnome3' things.


And on my own desktop, I've taken the radical step of moving from Ubuntu 
to ArchLinux (again with XFCE4).  It gives back the feeling of being in 
control of the machine.


cheers

Chris
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Re: [Dorset] A few links following last night meeting

2012-01-14 Thread Chris Dennis

TeamViewer is free for all non-commercial users! Looks interesting.
I've used reverse VNC connections in the past to access a remote
machine, avoiding talking the remote user through opening up an incoming
port. Traffic is in the clear though.
http://library.gnome.org/users/vinagre/stable/reverse-connections.html.en
TeamViewer looks easier.


I've used TeamViewer between Linux/Windows and Linux/Mac and it works
really well both directions. Sometimes, the connection does drop after a
little while (maybe half an hour?) but generally, it's pretty good.


TeamViewer seems to work well.  Although it's free as in beer, it does 
rely on all the traffic going through TeamViewer's server: you have to 
trust them.


To avoid using a third party, I've found Gitso[1] to be a good way of 
providing remote support for either Windows or Linux.  It's open source, 
but doesn't seem to have been updated for a couple of years.


[1] http://code.google.com/p/gitso/

cheers

Chris

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Re: [Dorset] laptop battery suppliers

2011-10-23 Thread Chris Dennis

On 10/23/2011 01:29 PM, John Palmer wrote:

There are several companies offering to sell laptop batteries on the net
but most are shy about stating their postal address which makes me
hesitant to deal with them.  Can people name some sellers that they
think are reliable, or alternatively some they've had trouble with ?
Many thanks, John


Here's a statistically insignificant sample.

I bought a generic battery for a Dell Inspiron 6000 from 
www.laptopbatteryshop.co.uk recently -- it failed after a week, but they 
refunded my money (minus the cost of return postage).


So instead I bought an even cheaper New Trent brand one from Amazon, 
and it's been fine (at least the client hasn't complained).


cheers

Chris
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Re: [Dorset] Locking down physical console access

2011-10-04 Thread Chris Dennis

On 10/03/2011 05:01 PM, David Wilkinson wrote:

Hi

Does anyone know if there is a way to stop logins from the physical
console so that a server can only be logged in via ssh?

I did some searching but only seem to find ones for Red hat like systems
or really old Ubuntu versions and the files they suggest changing don't
exist any more.

I am using Ubuntu server 11.04 x64.


The modern Ubuntu way of doing that may be to change the contents of 
/etc/init/tty[1-6].conf.


I've changed tty1.conf on my MythTV front-end so that a user 
automatically logs in, but you could also prevent logins completely.


On the other hand, I'm not an expert on this stuff, so you should 
confirm these ideas elsewhere.


cheers

Chris
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Re: [Dorset] Getting MythTV to work in Kubuntu 10.10

2011-04-23 Thread Chris Dennis

On 23/04/11 09:16, Keith Edmunds wrote:

On Fri, 22 Apr 2011 23:09:56 +0100, archi...@tiscali.co.uk said:


Has anyone had any success getting MythTV installed and working without
resorting to Mythbuntu?


Yes, lots of people have.


I am having problems getting it to connect to
the database despite being able to access it myself in a terminal.


How is your master backend defined in the Myth UI? On your backend system,
do you have MySQL listening on localhost (127.0.0.1) only, or is it
listening on your LAN interface? (If you don't know how to find the
answers to those questions, let me know).


think the problem is with it trying to call kdesu instead of kdesudo
when opening the database. Is there some way to redirect this?


There should be no need to use any kind of sudo command to open the
database.
...assuming you've set up MythTV to run as a user who has full access to 
the mythconverg database.


cheers

Chris

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Re: [Dorset] Getting MythTV to work in Kubuntu 10.10

2011-04-23 Thread Chris Dennis

On 23/04/11 17:21, Keith Edmunds wrote:

On Sat, 23 Apr 2011 17:14:19 +0100, cgden...@btinternet.com said:


...assuming you've set up MythTV to run as a user who has full access to
the mythconverg database.


Sorry, it has nothing to do with the user under which MythTV is running.
The database connection parameters are specified in the UI: you can
connect as whatever user you want.


You're right, of course.

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Re: [Dorset] IPv6 day are you ready

2011-04-23 Thread Chris Dennis

On 19/04/11 22:49, Tim wrote:


Thought you might like this

http://test-ipv6.com/


Can anyone recommend any books on IPv6?

I've found this webpage to be useful, although a lot of it is from a 
Windows point of view:



http://yorickdowne.wordpress.com/2010/02/26/ipv6-at-home-or-office-part-4-0-tunnelbroker-net-ipv6-routers/

cheers

Chris

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Re: [Dorset] IPv6 day are you ready

2011-04-22 Thread Chris Dennis

On 22/04/11 01:30, Andrew Morgan wrote:

On 21/04/11 20:21, Chris Dennis wrote:

I've just had a couple of emails from Jason Fesler who runs
test-ipv6.com, and he says:

\
Unless you're trying to reach sites that are IPv6-only and have no
way to be reached via IPv4, I'd consider disabling teredo and miredo.
You're intentionally prefering complex setups that can take your
packets through further routes, and through locations you have nobody
to complain to when they break.

http://en.wikipedia.org/wiki/Teredo_tunneling
http://technet.microsoft.com/en-us/library/bb457011.aspx


Is that true? Do teredo/miredo make connections more complicated for
IPv4 addresses?


If your only IPv6 connection is via Teredo, and if the site you are
trying to reach supports both IPv4 and IPv6, and if your software
prefers IPv6 over IPv4 then yes, it will send the connection via Teredo
rather than directly by IPv4.

If the site is IPv4 only then no, it won't be more complicated. If the
site is IPv6 only then it is via Teredo or nothing.


Right, that makes sense.  Thank you.

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Re: [Dorset] IPv6 day are you ready

2011-04-21 Thread Chris Dennis

On 19/04/11 23:47, Andrew Morgan wrote:


In Ubuntu (and presumably Debian?) IPv6 support is as easy as 'apt-get
install miredo'. It seems to be made of magic as it sets its self up
automatically in seconds. I've done this on all of my Linux machines now.



As IPv6 doesn't do NAT, miredo gives you an IPv6 address which is 
visible to the whole world, and therefore needs fire-walling.


I know there's plain ip6tables, but can people recommend an easy-to-use 
system for maintaining firewalls?  I've been using firehol, but the 
'latest news' on its web-page was in 2008, and it doesn't do IPv6.


cheers

Chris
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Re: [Dorset] Openoffice 3.3.0

2011-03-16 Thread Chris Dennis

On 16/03/11 09:33, C A Wills wrote:

Hi Peter

I've changed to LibreOffice and have had no problems


I'm running Ubuntu 10.10.  I thought I'd try LibreOffice, so I added 
this to my sources.list:


  http://ppa.launchpad.net/libreoffice/ppa/ubuntu maverick main

and installed the full LO suite last week.  It automatically removed OO.

But I had a few problems:

* printing to my Brother HL-5250DN was fine for the first copy of a 
one-page letter, but subsequent copies were garbled -- the layout was 
correct, but the characters were random.  That's a problem I had a 
couple of years ago with OO; I don't know what the exact cure was, but 
the problem went away.


* I had printing DL envelopes set up nicely on OO, but printing the same 
document with LO made a complete mess of it, with the address falling 
off the top-right corner.


So I've reverted to OO for now.

cheers

Chris
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Re: [Dorset] USB 1-2 problem

2011-03-14 Thread Chris Dennis

On 14/03/11 17:13, Peter Merchant wrote:

On Mon, 2011-03-14 at 14:20 +, Andrew Morgan wrote:

I believe keyboards  mice are all USB 1.1. I have some USB 1.1 devices
working on Ubuntu.

If it is a 54mbit (or faster) USB device then I would expect it to be
USB 2, otherwise it is limited to 11 Mb/s or thereabouts.

'lsusb -v' will show you a lot of information. The 'bcdUSB' lines show
you the USB version in use by a particular device.



Interesting:

peterm@peterm-desktop:~$ lsusb -v


lsusb -v needs to be run as root to show all the information.  (but 
maybe you knew that :)


cheers

Chris
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Re: [Dorset] DNS on an isolated (1:1) network

2011-03-11 Thread Chris Dennis

On 11/03/11 13:39, Terry Coles wrote:

On Thursday 10 Mar 2011, Terry Coles wrote:

We have a system at work that uses a Linux box (Live boot) running some
data gathering tools.  This information is written to a web page and
served up to a Windows box connected 1:1, (eg no other devices) for
analysis.  So far so good.

At present the Windows box provides DHCP and the Linux box advertises it's
hostname.  What we would really like to do is get the current Linux box to
provide DHCP and DNS.  Can anyone point me at a suitable tutorial or
guidance to explain how to set up and configure such a system?

Having the Windows box do DHCP and DNS is OK, but is likely to cause us
problems downstream, hence the query.


Replying to myself.

Thanks for the suggestions to date (the overwhelming support for dnsmasq).
However, when I related this to my colleage at work he said he couldnt see why
this (or bind) was needed because when he enabled udhcpd, he found that it
maintains a list of all hosts on the network so why couldn't that be used?

I didn't get a chance to look at it this morning, so I couldn't answer him,
but I could bear to know if what he's suggesting is possible.

Any takers?



If it's really just two computers talking to each other, you could just 
give each one a fixed IP address, e.g. 192.168.1.1 and 192.168.1.2, and 
they can talk to each other without requiring DHCP or DNS.


cheers

Chris

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Re: [Dorset] DNS on an isolated (1:1) network

2011-03-10 Thread Chris Dennis

On 10/03/11 17:23, Terry Coles wrote:

Hi,

We have a system at work that uses a Linux box (Live boot) running some data
gathering tools.  This information is written to a web page and served up to a
Windows box connected 1:1, (eg no other devices) for analysis.  So far so
good.

At present the Windows box provides DHCP and the Linux box advertises it's
hostname.  What we would really like to do is get the current Linux box to
provide DHCP and DNS.  Can anyone point me at a suitable tutorial or guidance
to explain how to set up and configure such a system?


dnsmasq[1] is relatively simple to work with, and is probably available 
in your favourite distro.


[1] http://www.thekelleys.org.uk/dnsmasq/doc.html

cheers

Chris

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Re: [Dorset] Lost booting on PC

2010-12-13 Thread Chris Dennis

On 13/12/10 18:16, Sean Gibbins wrote:

On 13/12/10 18:00, C A Wills wrote:

Done a silly thing and deleted several partitions on an old PC of my
brother, now no boot sequence!
PC used to dual boot WP/Ubuntu but they have not used Linux and WP has
no elbow room so I removed the Linux partitions, expanded WP twice as
large and used the remainder for their user data. All went fine until
I rebooted; post OK then Error 22, I then realised why - I'd removed
Grub with the Linux partition.
Am looking back through past LXF mags as I remember something similar
asked about, no luck so far.
Hope to be at meeting tomorrow so will ask then, but any info would be
useful so I can send it on to my brother. Don't know what file to look
for in Windos for the boot programme.


Hi Clive,

Based on an understanding that Linux is no longer present or required,
and that you are trying to recover a Windows instance, you could try
booting with a DOS boot disc and running the command 'fdisk /mbr'.


Or, if it's Windows XP, you could do a 'repair install' to revive it.

cheers

Chris


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Re: [Dorset] cd question

2010-11-23 Thread Chris Dennis

On 22/11/10 18:05, Tim wrote:


I am a cli dunce so please bear with me.

Lets say I am working in the terminal screen in the following folder

m...@computer:~#/folder1/folder2/folder3/folder4/folder5 mv blah blah.

Now I want to go back to work in folder2, what the easy command to get me back
there??

I have to move a lot of files (1 and 2) between a lot of folders and retyping
the full path everytime is wearing my keyboard out!!


I use MidnightCommander (aka mc) for that sort of thing.

See http://www.midnight-commander.org/

Install with

  aptitude install mc

or equivalent.

cheers

Chris

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Re: [Dorset] dorset Digest, Vol 359, Issue 4

2010-11-18 Thread Chris Dennis

On 18/11/10 17:02, Brian R Masterman wrote:

On 18/11/10 12:00, dorset-requ...@mailman.lug.org.uk wrote:

The command I put in was rm -rf ~/ .shotwell/Examples


You are not alone, we had a UNIX administrator do a;
chown -R .* username

Only to discover that it had changed all the above directories and then
down.


I did that once.

The fact that .* matches .. as well as everything else is definitely a 
Trap For Young Players, and might even be considered a design flaw. 
Running a command on everything in parent directories -- especially when 
it's doing things recursively -- as well as sub-directories is rarely 
what you'd expect or want.


cheers

Chris
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Re: [Dorset] Winjoke - stuck in the dark ages!

2010-08-22 Thread Chris Dennis

On 22/08/10 14:27, Simon O'Riordan wrote:

XP; no built in DVD writing. Deep-something-or-other comes highly
recommended as a free writer. It's CRAP, totally non functional.


It may be too late now, but CDBurnerXP [1] is very good.  Despite the 
name, it will also burn DVDs and run on Vista and W7.


[1] http://cdburnerxp.se/

cheers

Chris
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Re: [Dorset] New book.

2010-08-19 Thread Chris Dennis

On 18/08/10 21:13, Peter Merchant wrote:

The link did not come through in the original posting. Here it is.

http://technewsletters-whitepapers.tradepub.com/free/w_opeb01/prgm.cgi

Peter


It's probably got lots of useful stuff in it, but it's looking a bit 
dated.  It has a section on optimising IDE hard drives, but no mention 
of SATA.  And in the introduction it speculates about what a wonderful 
server Linux will be in 2003.


And you have to sign your life away to get the download in the first place.

Thanks for the link though.

cheers

Chris
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Re: [Dorset] texlive problem

2010-03-14 Thread Chris Dennis
Peter Harris wrote:
 On Fri, 2010-03-12 at 18:13 +, Chris Dennis wrote:
 Peter Harris wrote:
 On Fri, 2010-03-12 at 03:26 +, Robert Bronsdon wrote:
 On Thu, 11 Mar 2010 18:52:54 -, Peter Harris  
 peter.harr...@virgin.net wrote:

 It does not appear in the applications menu and I
 can't find a way of starting it.
 You don't 'start' any of the Tex packages per-se. You invoke them into  
 your Tex source.

 Like you don't 'run' certain development packages but compilation scripts  
 and your own code can include them.

 Without knowing exactly what you want to achieve it is impossible to help. 
  
 So why did you install texlive-math-extra and what math functions does it  
 provide that you want to use?


 -- 
 Using Opera M2: http://www.opera.com/mail/

 Hi Robert,

 I want to present mathematical formulas in a proper format.  At the
 moment I can't properly show things like  Square root of A divided by b.
 Does this help?
 My standard installation of Lyx allows maths via the Insert / Math menu, 
 e.g.

 $\sqrt{\frac{a}{b}}$

 cheers

 Chris
 -- 
 Chris Dennis  cgden...@btinternet.com
 Fordingbridge, Hampshire, UK

 
 Hi Chris,
 
 Thanks, Lyx seems to be what I want.  Can I run it from Open Office?

Lyx is a GUI frontend to Tex/Latex.

Tex/Latex can by used within OpenOffice with the help of this: 
http://ooolatex.sourceforge.net/
which will let you use equations and related stuff.

cheers

Chris


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Fordingbridge, Hampshire, UK

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Re: [Dorset] texlive problem

2010-03-12 Thread Chris Dennis
Peter Harris wrote:
 On Fri, 2010-03-12 at 03:26 +, Robert Bronsdon wrote:
 On Thu, 11 Mar 2010 18:52:54 -, Peter Harris  
 peter.harr...@virgin.net wrote:

 It does not appear in the applications menu and I
 can't find a way of starting it.
 You don't 'start' any of the Tex packages per-se. You invoke them into  
 your Tex source.

 Like you don't 'run' certain development packages but compilation scripts  
 and your own code can include them.

 Without knowing exactly what you want to achieve it is impossible to help.  
 So why did you install texlive-math-extra and what math functions does it  
 provide that you want to use?


 -- 
 Using Opera M2: http://www.opera.com/mail/

 
 Hi Robert,
 
 I want to present mathematical formulas in a proper format.  At the
 moment I can't properly show things like  Square root of A divided by b.
 Does this help?

My standard installation of Lyx allows maths via the Insert / Math menu, 
e.g.

$\sqrt{\frac{a}{b}}$

cheers

Chris
-- 
Chris Dennis  cgden...@btinternet.com
Fordingbridge, Hampshire, UK

-- 
Next meeting: Bournemouth, Wed 2010-04-07 20:00
http://dorset.lug.org.uk/ http://www.linkedin.com/groups?gid=2645413
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Re: [Dorset] Recommendation.

2009-12-10 Thread Chris Dennis
John Carlyle-Clarke wrote:
 On 10/12/09 11:38, Tim Allen wrote:
 Re 28 day/30 day window:

 http://www.dyndns.com/services/dns/dyndns/readme.html#abuse

  From reading that, my interpretation is that an abusive update is an 
 update containing the same IP address.  Dozens of these are allowed 
 before an account is blocked, to allow for things like setting up new 
 clients, etc.  An update of the same IP address is allowed every 28 days 
 in order to avoid the 30 day inactivity timeout.  However, if your 
 address changes more frequently than every 30 days you will not have any 
 problems.
 
 

Thank you Tim and John.

For some reason my little brain had got it all wrong: I was confusing 
ddclient's IP-checking frequency (typically every few minutes) with its 
DynDNS-updating frequency, which obviously only happens rarely, when the 
IP address changes.

My DynDNS account hasn't expired and I don't think that the IP address 
has changed.  Does that mean that ddclient is clever enough to 
automatically contact DynDNS every 28 days even if the IP address is the 
same?

cheers

Chris
-- 
Chris Dennis  cgden...@btinternet.com
Fordingbridge, Hampshire, UK

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