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10372 discussions

Testing new mail server without turning off the old one - how?
by Chris G 04 Nov '09

04 Nov '09

I am moving my mail server from my desktop machine to a server machine. Both these machines are on my SoHo LAN behind a NAT router. Thus to move incoming mail from one to the other I have to change the port forwarding and firewall setings in the router. Can anyone suggest a way to either send incoming mail to both machines or some other way of testing the new mail server before committing all my incoming mail to it? I already copy all my mail to another user where it isn't sorted but just gets kept for seven days and then deleted. That is done on my hosting companies system. So I have some protection from total disaster! In addition of course the 'sender' (my hosting supplier) will wait and retry if/when I stop accepting mail so mail shouldn't be lost but I'd really like to do at least some simple testing before the big switch over. -- Chris Green

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Network Manager job
by Christopher Dawkins 04 Nov '09

04 Nov '09

This job http://www.computerweekly.com/jobs/job/network-manager-essex-200615684.htm says "with particular skills in UNIX (preferably FreeBSD)" which is very unusual for a school. But with 13 OSS servers and 22 routers running OSPF over a 90-acre 25-building site, it's serious, and I hope they get someone with those skills. -- Christopher Dawkins Garnetts Corner, Braintree Road, Felsted, Dunmow, Essex CM6 3DS cchd(a)pjcd.org 07816 821659 01371 821076

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OT: ADSL T-Bar?
by Mark Rogers 03 Nov '09

03 Nov '09

One of our customers has been advised that something called a "t-bar" (phonetic spelling, I or he may have misheard and I've probably mis-spelled otherwise anyway) will improve his ADSL connection. Professor Google hasn't helped me work out what he is being told, does anyone here know? -- Mark Rogers // More Solutions Ltd (Peterborough Office) // 0844 251 1450 Registered in England (0456 0902) @ 13 Clarke Rd, Milton Keynes, MK1 1LG

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Are there any good iptable routing configuration utilities out there?
by Chris G 30 Oct '09

30 Oct '09

I've been Googling around for a while and can't find any good utilities (command line or GUI, don't mind too much) for configuring iptables routing. Part of the trouble is that 'iptables configuration' mostly means firewall set up and I don't want/need to do that as it's in my ADSL router. What I want is to configure routing tables in a Linux 'server' box on my network. It *may* be that some of the firewall utilities will do what I want but it's difficult to penetrate the mass of information about firewall set up. I think Smoothwall can probably do what I want but is possibly overkill. Quagga maybe too but it is definitely overkill, I don't have complex requirements, just slightly non-standard ones. There are sites like http://lartc.org/howto/lartc.rpdb.multiple-links.html which tell you how to do some of what I want but they're very old and I wonder if they're still the right way to do things. They're mostly four or five years old and the kernel and routing have probably moved on somewhat since then. They don't really handle failover either. -- Chris Green

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Youtube stops buffering
by Barry Samuels 30 Oct '09

30 Oct '09

Debian Testing with kernel 2.6.26 Flah version 10.0.32.18 My wife uses Iceweasel to access youtube and she discovered that recently when she tries to play something it starts to buffer the stream but after a very short while the buffering stops. When the play indicator reaches the end of the buffer mark it stops and won't play any more. She also uses BBC iPlayer but that doesn't give any problems. Can anyone nudge me in the right direction in trying to diagnose this? -- Barry Samuels http://www.beenthere-donethat.org.uk The Unofficial Guide to Great Britain

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Routing/port forwarding question
by Chris G 29 Oct '09

29 Oct '09

If I set up a 'router' box which does connection sharing with something like the following in its routing:- ip route add default scop global \ nexthop via 192.168.0.2 dev eth0 weight1 \ nexthop via 192.168.0.3 dev eth0 weight1 (two ADSL modems/routers on 192.168.0/24 with approximately equal speed) Then how do I deal with SSL, incoming SMTP and similar which require that, once started, the 'session' continues to use the same interface? Is there a routing syntax that allows one to specify a port number which would override the above for specific port numbers? -- Chris Green

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USB error messages in syslog - what do they mean?
by Chris G 29 Oct '09

29 Oct '09

I have just tried connecting my 2Wire 2700HGV router to my ubuntu 9.04 linux system using USB. This produces the following in syslog:- Oct 26 23:12:34 chris kernel: [230365.857016] usb 6-2: new full speed USB device using uhci_hcd and address 3 Oct 26 23:12:34 chris kernel: [230366.039734] usb 6-2: configuration #1 chosen from 1 choice Oct 26 23:12:35 chris kernel: [230366.219736] usbcore: registered new interface driver cdc_ether Oct 26 23:12:35 chris kernel: [230366.468009] rndis_host 6-2:1.0: RNDIS_MSG_QUERY(0x00010202) failed, -110 Oct 26 23:12:35 chris kernel: [230366.708062] rndis_host 6-2:1.0: RNDIS_MSG_QUERY(0x01010101) failed, -110 Oct 26 23:12:35 chris kernel: [230366.708067] rndis_host 6-2:1.0: rndis get ethaddr, -110 Oct 26 23:12:35 chris kernel: [230366.709680] rndis_host: probe of 6-2:1.0 failed with error -110 Oct 26 23:12:35 chris kernel: [230366.709713] usbcore: registered new interface driver rndis_host Oct 26 23:12:35 chris kernel: [230366.968010] rndis_wlan 6-2:1.0: RNDIS init failed, -110 Oct 26 23:12:35 chris kernel: [230366.968036] rndis_wlan: probe of 6-2:1.0 failed with error -110 Oct 26 23:12:35 chris kernel: [230366.968064] usbcore: registered new interface driver rndis_wlan Is this an error (as in a bug in the Linux code) or is it just that the USB code in Linux doesn't know how to talk to the router? -- Chris Green

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USB to Ethernet - works!
by Chris G 29 Oct '09

29 Oct '09

Well my new, cheap, generic USB to ethernet dongle 'just works', excellent! It was about a fiver from Lambdatek (along with some other stuff to avoid carriage being too significant). It's branded "Dynamode" USB-NIC-1427-100 if anyone is interested. It means I can add extra NICs to my little Acer Aspire Revo to my heart's content, I only need the one for the moment. By the way I have Ubuntu Server 9.10 (last release candidate) installed on the Revo, went without a hitch. I tried xubuntu but that fell in a heap, I suspect the display drivers are not fully up to it yet and, as I don't really need X, I just went for the server installation. Next to configure it to actually start doing useful things so I can turn my desktop machine off when I'm not using it and the rest of our little network will continue to be happy. -- Chris Green

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Searching a web host for possible exploits
by Mark Rogers 29 Oct '09

29 Oct '09

In the past I've used a little script here: http://forum.joomla.org/viewtopic.php?t=92678 .. to scan my virtual hosts for any exploits that might have been uploaded (eg any PHP Shells, etc). It's quite a simple but effective script (just searching for keywords and emailing the offending section of code to me to investigate) but it isn't maintained and there's probably better tools out there. My question is: what tools do other people use/recommend? -- Mark Rogers // More Solutions Ltd (Peterborough Office) // 0844 251 1450 Registered in England (0456 0902) @ 13 Clarke Rd, Milton Keynes, MK1 1LG

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Naive Wireless LAN question(s)
by Chris G 27 Oct '09

27 Oct '09

Up until now I have avoided using Wireless LANs as far as possible, I find wired ethernet much easier to understand and get my head around. We have occasionally turned on the Wireless on the router to allow my wife's laptop to connect when she's out in the garden but have always turned it off again after use. I now want/need to do something a bit more difficult and really don't quite know how wireless will handle it (or even if it can). I'll try and explain what I want to do. I have two phone lines each with ADSL from two different ISPs. Currently it's all hard wired with a Draytek Vigor 2820n on one and a BT Business Hub (2Wire) on the other. The 2820n provides simple load balancing sharing requests between its ADSL and the BT/2Wire ADSL which is connected to the second WAN port on the 2820n. What I want to do is do load balancing/sharing in a Linux 'server' box rather than using the 2820n as the 2820n's load balancing is a bit limited and I think that (maybe) I can do better using something like Zeroshell or Smoothwall in a dedicated Linux box. I'm aiming to try using an Acer Aspire Revo as the 'server' box but it only has one wired ethernet NIC (as do nearly all reasonably priced low power boxes) so I'll need to use its wireless LAN too. I'd like to use its hardwired Gigabit interface to connect to my existing LAN with our desktop machines, NAS etc. So, I want to use the wireless LAN on the Acer Aspire Revo to talk to both the routers, is this possible? I.e. will they all talk together in the same way as they would if plugged into a switch? Or would I be better off getting the Revo to talk to one of the routers using wireless and then use the switch in that router to get the other router onto the same subnet? Any all advice welcome (if anyone has waded through this so far!). -- Chris Green

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And now for something completely different - an iPlayer problem
by Barry Samuels 26 Oct '09

26 Oct '09

I'm having a BBC iPlayer problem. If I try to access content, using Iceweasel, I get a message "This content doesn't seem to be working" but my wife can access the same content from her computer connected to the same router. We are running the same versions of Debian and Iceweasel. I do have Flash enabled and I can access the ITV and Channel Four equivalents with problems. Any ideas? -- Barry Samuels http://www.beenthere-donethat.org.uk The Unofficial Guide to Great Britain

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Any experience of USB to ethernet converters with Linux?
by Chris G 26 Oct '09

26 Oct '09

Has anyone here used a USB to Ethernet converter with Linux? I want to add a second ethernet interface to an Acer Aspire Revo and the most obvious way to do it is to use a USB to ethernet thingy. Will it 'just work' or are there issues? A quick Google search suggests that I should have no problems but it would be good to have specific recommendations if anyone has any. -- Chris Green

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BBC iplayer desktop
by Bev Nicolson 26 Oct '09

26 Oct '09

Because the BBC programmes play back so badly if I watch them online I thought I'd try installing the desktop version of iplayer. However, towards the end of the process a message comes up saying 'Enter password for default keyring to unlock.' I had thought this would go away eventually but it hasn't. Googling tells me that this is used for wireless connection but of course all I wish to do is download a programme and I'm not able to. What do I do? Thanks. Bev.

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Re: [ALUG] And now for something completely different - an iPlayer problem
by Barry Samuels 23 Oct '09

23 Oct '09

On 23/10/09 14:24:57, Dennis Dryden wrote: > > Can you access it from the same machine under a different account? > Might be a plugin or something. > > Dennis Dennis set me on the right track. I logged in as a different user and iPlayer worked so then I logged in as my usual user and set up a new iceweasel profile and iPlayer still worked. So far I was accessing bbc.co.uk by typing the URL then I imported my bookmark list and selected my bookmarked URL and I got that error message again. I realised at this point that the bookmarked URL was bbc.net.uk not bbc.co.uk and changing 'net' to 'co' cured the problem. I don't know how I got onto bbc.net.uk in the first place but that's the one I bookmarked by chance and that was the cause of the problem. A bit of a weird one that. Thanks to Dennis for the initial clue and to the others who tried to help. -- Barry Samuels http://www.beenthere-donethat.org.uk The Unofficial Guide to Great Britain

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Re: [ALUG] And now for something completely different - an iPlayer problem
by Barry Samuels 23 Oct '09

23 Oct '09

On 23/10/09 14:24:57, Dennis Dryden wrote: > On Fri, Oct 23, 2009 at 2:08 PM, Barry Samuels > <bjsamuels(a)beenthere-donethat.org.uk> wrote: > > I'm having a BBC iPlayer problem. If I try to access content, using > > Iceweasel, I get a message "This content doesn't seem to be working" > > but my wife can access the same content from her computer connected > > to the same router. We are running the same versions of Debian and > > Iceweasel. > > > > I do have Flash enabled and I can access the ITV and Channel Four > > equivalents with problems. > > > > Any ideas? > > Can you access it from the same machine under a different account? > Might be a plugin or something. > > Dennis That's something I hadn't thought of. Tried that and got a little further to a picture with a 'Play' icon in the centre and a play button on the windows status bar but clicking either does nothing. -- Barry Samuels http://www.beenthere-donethat.org.uk The Unofficial Guide to Great Britain

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blacklisting in Spamassassin
by Jenny Hopkins 21 Oct '09

21 Oct '09

Hullo, I'm finding mail headers a tad confusing. If the header of a mail is as below, what is the actual address that needs to be entered in a blacklist file in SpamAssassin? Or for the local user to enter into an evolution blacklist file on their local machine? info(a)courier.org smtpgw.nic.in ciyang22(a)yahoo.co.uk vastu3.nic.in wb.nic.in ? Many thanks, Jenny Return-Path: <info(a)courier.org> Envelope-To: user(a)dream.mydomain.co.uk Delivery-Date: Sat, 17 Oct 2009 19:01:09 +0100 Received: from stoneboat.mydomain.co.uk ([80.68.88.63]) by dream.mydomain.co.uk with esmtp (Exim 4.69) (envelope-from <info(a)courier.org>) id 1MzDaM-0005TE-SQ; Sat, 17 Oct 2009 19:01:03 +0100 Received: from smtpgw.nic.in ([164.100.17.13] helo=vastu3.nic.in) by stoneboat.mydomain.co.uk with esmtp (Exim 4.69) (envelope-from <info(a)courier.org>) id 1MzDZG-0007Kq-6R; Sat, 17 Oct 2009 18:59:55 +0100 Received: from vastu3.nic.in (localhost.localdomain [127.0.0.1]) by vastu3.nic.in (8.12.10/8.12.10) with ESMTP id n9HGohnY005375; Sat, 17 Oct 2009 22:20:50 +0530 Received: from wb.nic.in (wb.nic.in [164.100.199.2])by vastu3.nic.in (8.12.10/8.12.10) with ESMTP id n9HGnfAp005107;Sat, 17 Oct 2009 22:19:42 +0530 Received: from wb.nic.in (localhost.localdomain [127.0.0.1])by wb.nic.in (8.13.5/8.13.5) with ESMTP id n9HIAXt6014677;Sat, 17 Oct 2009 23:40:33 +0530 Received: (from apache@localhost)by wb.nic.in (8.13.5/8.13.5/Submit) id n9HI9PTm014656;Sat, 17 Oct 2009 23:39:25 +0530 X-authentication-warning: wb.nic.in: apache set sender to info(a)courier.org using -f Received: from 118.98.215.130 (proxying for 62.56.132.24) (SquirrelMail authenticated user pao-coochbehar) by wb.nic.in with HTTP; Sat, 17 Oct 2009 23:39:25 +0530 (IST) Message-id: <44260.118.98.215.130.1255802965.squirrel(a)wb.nic.in> Date: Sat, 17 Oct 2009 23:39:25 +0530 (IST) (19:09 BST) From: Mr. Tomo Sand Nori <info(a)courier.org> Reply-to: ciyang22(a)yahoo.co.uk

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Cron format to run something every ten minutes, but not on the hour?
by Chris G 20 Oct '09

20 Oct '09

I thought I had this sussed:- 3/10 * * * * news <command> to run <command> every ten minutes starting at three minutes past the hour but it doesn't. It just runs the command at three minutes past the hour and not again until three minutes past the next hour. (Note this is in a file in /etc/cron.d, hence the 'news' for the username to run the command.) I thought that the first time I set this up it worked every ten minutes, but looking at my logs it seems I was wrong, oh well. I have to admit re-reading the man page I can't see how I expected it to work the way I thought. So I can change it to:- */10 * * * * news <command> but that means (presumably) that the command will run on the hour which I'd really prefer to avoid. Is there no way to say run at x minutes past and every ten minutes thereafter? I suppose I could do:- 3,13,23,33,43,53 * * * * news <command> Is that the only/best way to do it? -- Chris Green

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leafnode, any users here?
by Chris G 19 Oct '09

19 Oct '09

I seem to remember that there are some leafnode users here, if so could I ask a couple of questions please. I've looked at the leafnode web site but it doesn't really have much documentation that gives general information. I'm sure it's fine for details of how to instal it and configure it but I want to be sure it does what I want before I actually try and use it. So:- Will leafnode happily collect news from more than one NNTP server? Will it allow what feels like on-line use? I.e. I don't want something specifically for dial up, I want it to provide me with 'new' news all the time, not just once a day. -- Chris Green

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[ALUG Announce] 3rd Monday Monthly Ipswich Social Meeting : McGintys, Northgate Street
by samwise 19 Oct '09

19 Oct '09

ALUG Announce Please send announcements to Announce(a)lists.alug.org.uk Unsub, change settings via http://lists.alug.org.uk/mailman/listinfo/announce ----- The monthly "Third Monday" ALUG Ipswich Social Meeting is tonight, Monday 19th October, at 20:00: P J McGinty & Sons 15 Northgate Street Ipswich Suffolk IP1 3BY Tel: 01473 251 515 Map/Directions URI: http://maps.google.co.uk/?q=IP1+3BY WWW: http://pjmcginty.moonfruit.com/ McGintys pub is in the centre of Ipswich, not far from our old haunt - The Milestone. It's directly opposite the town's central library and has a reputation for good Irish beer. All are welcome, novices and experienced users. Feel free to ask for further information on the Main ALUG mailing list. Last month, we had a discussion about the old tutorials format. When we first started, we used to take turns showing off various programs and technologies to each other - which was a popular feature of the meets. Unfortunately, the number of volunteers began to drop off and it eventually fell on the shoulders of only one or two members to organise tutorials each month. This wasn't fair, so they dried up. However, we decided last month that if we dropped the tutorials to every other month then if we could get just three people to agree to be involved, that would mean they would only have to organise one twice per year. On that basis, we're going to trial bringing them back - I agreed to arrange the first one, this month. So tonight's tutorial is going to be on Android Application Development. I'll go through what the Android platform is, what technologies are behind it, how to get a development environment up and running and the creation of some simple applications. Remember to call or email me, if you're arriving later and want to ensure I don't wander off, which I have a tendency to do if the turn-out hits rock-bottom ... Hope to see you there, Peter. ----- Send discussion replies to main(a)lists.alug.org.uk (Reply-To set) Unsub, change settings via http://lists.alug.org.uk/mailman/listinfo/announce

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playing guardian videos
by Peter Alcibiades 17 Oct '09

17 Oct '09

Hi, does anyone know how to do this? Play videos from the Guardian that is? I am doing open with from Konqueror. Mplayer seems not to be able to find the file. Totem wants a plug in text/html decoder, which I have not been able to find one. I seem not to be able to install vlc, this on Squeeze, because it requires vlc-nox, and that then requires a bunch of other stuff which I can't get. So apt-get says it has an unresolvable dependency problem. Seems odd, but there it is. But I don't see why totem should not work. Unless the Guardian is doing something odd? Peter

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slow wifi
by nev young 15 Oct '09

15 Oct '09

Just wondered if anyone here had a quick answer to this. Under windows my wifi network runs at 56Mb/s. However, the same (laptop) hardware running ubuntu (9.04) can only manage 11Mb/s. Is there a way to get the full speed out of it? Nev

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World of Goo 1 year old!
by Martin Collins 15 Oct '09

15 Oct '09

Just thought I'd let you all know of this offer. World of Goo was 1 year old on the 13th. If you follow the link they have an offer on until the 19th. You can pay whatever you think it's worth, from $0.01 to millions. Of course you all need the Linux version but I believe once you've paid you can download the versions for all three operating systems for the same price. DRM free - no keycodes or restrictions. I paid $19.99 not so long ago so this is a bargain. It's a good game and one of the few commercial titles available for Linux. http://2dboy.com/games.php Thanks all. Martin

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VB
by Mathew Moore 15 Oct '09

15 Oct '09

My names Mathew, I've been watching the VB .net story and would like to say that i also use VB2005 day by day and am happy with it, this is because it gets the job i need it to do without to much time wasted thinking about how it's done. All my users are MS users, as the company have forced that on us!?. Yes i've learn C++, done some Delphi (7 i think), but Basic has been with me since the ZX Spectrum 48K. Would love to come to the Alug meetings but will find it difficult due to hearing problems. As I understand it MS do allow code from the MSIL to run as native code but you have to create an image from the code (never actually do it), the documentation say that MSIL allows code to be JIT'ed for the target at runtime with optimzation thrown in. All that said I would like to learn C# just to look good on my CV. But learning how to code for a linux box would be a very good plus for me. Mat By the way, the C# book thing, any library can loan you a book for about 6 to 9 weeks in total this should give you time to see if that's the one for you to buy nor not, costing you nothing if it's not

2 1

PHP rounding
by Mark Rogers 14 Oct '09

14 Oct '09

Can anyone explain this code's output? <?php $x = (15/100) * 10.7; $y = 1.605; var_dump($x, $y, round($x,2), round($y,2),round(1.605,2)); ?> Result: float(1.605) float(1.605) float(1.6) float(1.61) float(1.61) In other words there is a difference between the values of $x and $y where they should both be 1.605 (and var_dump shows them both to be 1.605). I assume this is because $x isn't really 1.605, but something very close to (and slightly below) 1.605 due to a rounding issue, so rounding to 2 decimal places causes it to round down not up. But I'm not sure how to change the code to give the correct results? (15/100 you may notice as VAT; this is a VAT calculation, therefore I'm kinda duty bound to get the right result!) -- Mark Rogers // More Solutions Ltd (Peterborough Office) // 0844 251 1450C Registered in England (0456 0902) @ 13 Clarke Rd, Milton Keynes, MK1 1LG

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Hi
by steve-ALUG＠hst.me.uk 13 Oct '09

13 Oct '09

Hi, I'm Steve, I've been aware of ALUG for a while but never got round to signing up to the mailing lists. I've finally got round to it (obviously!) I've been using Linux for several years, I started with Fedora (FC3 I think), then swapped to Ubuntu. I used to be a programmer, but that was using Windows. I've not done any programming for Linux yet - I expect to try it one day, when I get some time! Regards Steve

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