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New computer - audio and other problems
by Barry Samuels 21 Aug '14

21 Aug '14

As I said in my previous query I have recently aquired a new computer, a Nofan A470 from QuietPC.com with on-board audio Realtek ALC650 6 channel, and I have installed Debian Testing/Jessie from scratch. I have done a lot of internet searching regarding these problems but have not found anything which works. (1) I'm using Fluxbox as my desktop although I have some KDE applications installed. The audio seems to work without problems with any KDE applications but not with anything else. For example - I use mail-notification which shows as an icon in the bottom toolbar and I can set it to play a sound when new mail arrives. That can be set in the configuration, an it is, and which also allows a test play but there is no sound. I believe that mail-notification is Gnome based. I have also installed Timidity plus the standard patch files but can't get any sound although it appears to be playing. There are some Phonon and Alsa packages installed. (2) Also with mail-notification I should be able to click the icon and get it to open Balse, my mail reader, but clicking does nothing. When mail- notification was installed it started Evolution when the icon was clicked but I didn't want Evolution and uninstalled it. I can't find any way to set mail-notification to open Balsa. (3) The last thing is that I use Krusader as a file manager and I want text files, by default, to be opened using Mousepad. At present the default is Libre Office and I haven't been able to change that. In the Krusader configuration there is an option to set which editor to use and I have set it to /usr/bin/mousepad but that appears to be ignored. Any pointers would be gratefully received. -- Barry Samuels

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How to run a command at (about) 1 second intervals securely (i.e. it won't die)?
by Chris Green 20 Aug '14

20 Aug '14

I want to run a command at something like 1 second intervals (the timing isn't at all critical), it's a background task with no screen output. So I want something like 'watch' but which will run without a terminal, and I also want to be sure that the command will always get run. Thus something like a loop in bash with a 'sleep 1' in it isn't suitable because if the command dies it won't restart. I.e. it's a cron job with a 1 second repeat rate and non-critical timing, any ideas anyone? -- Chris Green

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Re: [ALUG] SSH Connection to device behind NAT/firewall
by MJ Ray 19 Aug '14

19 Aug '14

On 08/19/14 15:48, mick wrote: > I wrote a post about this here: > https://baldric.net/2013/03/26/using-an-ssh-reverse-tunnel-to-bypass-nat-fi… Looks OK to me. I mostly use openvpn now, using tricks like port 443 to get through on most 3G networks. Some 3G networks block ssh port 22... > (Your emails are oddly dated. This one appeared from 6 August....) It was double-posted in html so I guess it got held until someone could review it. Hope that helps, -- MJ Ray (slef), member of www.software.coop, a for-more-than-profit co-op http://koha-community.org supporter, web and library systems developer. In My Opinion Only: see http://mjr.towers.org.uk/email.html Available for hire (including development) at http://www.software.coop/

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SSH Connection to device behind NAT/firewall
by Mark Rogers 19 Aug '14

19 Aug '14

I know others here have experience of this, and I have a potential use for it. Situation: Linux box (Debian/ARM) behind a Draytek router which will variously connect to the Internet via ADSL, WiFi, 3G, etc. I want to have SSH access to the box whenever it is online without relying on having a routable or static IP at the router, ie the box will need to make and maintain an outbound connection to me so that I can access it when needed. I think this is what Chris does on his boat, but any pointers to the right way to go about this appreciated. Not looking for a full VPN (not least because some 3G providers block VPN access). The Draytek is already setup to manage office-to-office VPN but it's the failure of that which has prompted this. -- 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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mini-ITX motherboard
by Jenny Hopkins 18 Aug '14

18 Aug '14

Hello, Can anybody use a Zotac ION ITX board with 2x1GB DIMM? Has instruction manual, cables, originally purchased 2009. Mail off list if interested. Thanks, Jenny

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[ALUG Announce] 3rd Monday Monthly Ipswich Social Meeting : The Mulberry Tree
by samwise 17 Aug '14

17 Aug '14

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 back tomorrow, 17th August, at 20:00: The Mulberry Tree 5 Woodbridge Road IPSWICH IP4 2EA Tel: 01473 225776 Map/Directions URI: http://maps.google.co.uk/?q=IP4+2EA WWW: https://www.facebook.com/MULBERRYHOSPITALITY The Mulberry Tree, previously known as The Milestone Beer House, is a grade 2 listed building in the centre of Ipswich. It is located at the intersection between Woodbridge Road and the A1156, across the road from the old Odeon cinema and not far from the Regent Theatre. It re-opened on Thursday March 29th 2012 after a major refurbishment, under its original name of The Mulberry House and has already begun to regain a good reputation for its selection of beers and ales. It has a sizeable car park to the rear of the building. All are welcome, novices and experienced users. Feel free to ask for further information on the Main ALUG mailing list. Cheers, 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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Alternative question to how to run a command once a second - run a command as root
by Chris Green 16 Aug '14

16 Aug '14

The alternative to running a script once a second (as in my other question) is to use a script that's setuid root - nasty and most systems don't let you do it. I'll explain the problem, I'm reading some analog inputs on a Beaglebone Black and want to display them on a numeric LCD. It's basically a voltmeter and ammeter. Thus I want the display to update fairly frequently. The underlying problem is that because of the (stupid?) way the Beaglebone is configured you have to be root to read the ADC inputs. Thus my original solution was to have a root task running in the background reading the ADC values once a second and writing them to a world readable file. The user task can then read them from file as necessary and display the values or send them to me or whatever. The alternative would be to provide some sort of callable routine that runs with root privilege which can be called as needed from user tasks. This would be a much more elegant solution really as much of the time I don't need 'once a second' frequency, only once an hour for sending values across the internet. It's only when I'm in the same place as the Beaglebone that I want 'once a second' values that I can look at. Is there a neat way of running a bit of Python code with root privilege? Security really isn't terribly important, it's only a little SBC monitoring some values. I suppose I could simply run everything as root but that feels all wrong somehow! :-) -- Chris Green

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Where has my disk space gone?
by Chris Green 15 Aug '14

15 Aug '14

I have an old eeePc which has a 2Gb SSD. I have a minimal Ubuntu installation on it and it works OK. However there seems to be some 'missing' disk space. fdisk seems to return what one would expect:- root@eeepc:~# fdisk -l Disk /dev/sda: 2000 MB, 2000388096 bytes 255 heads, 63 sectors/track, 243 cylinders, total 3907008 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000312c5 Device Boot Start End Blocks Id System /dev/sda1 * 2048 499711 248832 83 Linux /dev/sda2 501758 3905535 1701889 5 Extended /dev/sda5 501760 3905535 1701888 8e Linux LVM Disk /dev/mapper/eeepc--vg-root: 1170 MB, 1170210816 bytes 255 heads, 63 sectors/track, 142 cylinders, total 2285568 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/mapper/eeepc--vg-root doesn't contain a valid partition table Disk /dev/mapper/eeepc--vg-swap_1: 524 MB, 524288000 bytes 255 heads, 63 sectors/track, 63 cylinders, total 1024000 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/mapper/eeepc--vg-swap_1 doesn't contain a valid partition table BUT why does that /dev/mapper/eeepc--vg-root partition show as only 1.1Gb, there's 1.7Gb or so for it to use in /dev/sda5. In fact what is all that /dev/mapper/eeepc--vg-root stuff about? I don't have anything like it on my other machines. -- Chris Green

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Camera media disk corrupted
by Jenny Hopkins 13 Aug '14

13 Aug '14

Hi All, My camera battery died during a file transfer, with the photographs only partially transferred. After recharging the battery, I'm left with a corrupt file system, with listings such as: -rw-r--r-- 1 jenny jenny 268435456 Jan 1 1980 ??.Ã? -rw-r--r-- 1 jenny jenny 0 Jan 3 1980 Ã? -rw-r--r-- 1 jenny jenny 0 Jan 3 1980 Ã? -rw-r--r-- 1 jenny jenny 0 Dec 31 1979 Ã?.? drwx------ 5183 jenny jenny 655360 Mar 29 2012 DCIM drwx------ 3 jenny jenny 32768 Mar 29 2012 MCSOFQ -r--r--r-- 1 jenny jenny 268435456 Dec 31 1979 ]?MSTICK.â??nd -r--r--r-- 1 jenny jenny 33554432 Dec 31 1979 mstk_?ro.IND d????????? ? ? ? ? ? TRASH-~1 Is there any hope at all of getting any further photos from the disk, or is it a lost cause? DCIM takes an age to open, then refuses to copy any of the listed files to my computer hard drive, mostly complaining of input/output error. ls: cannot access DCIM/!â”‚Ã©(a)xn--~-6baq9uc29df93o.xn----mca0s) Input/output error total 9697785440 d????????? ? ? ? ? ? 01ÎŽ\5iâ?¥â??.ÂµÂ¬/ Thanks, Jenny :-(

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[ALUG Announce] ALUG Norwich Pub Meet Thursday 14th August
by Viperfang 11 Aug '14

11 Aug '14

ALUG Announce Please send announcements to Announce(a)lists.alug.org.uk Unsub, change settings via http://lists.alug.org.uk/mailman/listinfo/announce ----- Hello Norwich Aluggers, Our monthly ALUG Norwich social meeting will be held this Thursday, 14th August at The Coach and Horses (82 Thorpe Road, Norwich, NR1 1BA). The meeting officially starts at 8pm, although some people may arrive earlier. More information on those people can be found on the list and the IRC channel. If you are unsure if you will recognise us then make yourself and your intent to attend known by either posting on list or visiting us on IRC so we can look out for you rather than hiding in the corner. Optionally you could ask at the bar if they know where the geeky computer weirdos are and they'll point you in the right direction (seriously!). Another possibility is look for heaps of electronics on a table that may possibly look like movie props that would used for detonating explosives. Feel free to bring electronics/laptops/gadgets to the meet, you will by no means be alone. Ben Bewick aka Viperfang NB: This mail is automated, please refer to the usual sources for more information. ALUG Contact Details: Website : http://www.alug.org.uk/ IRC : #alug on irc.alug.org.uk List : http://lists.alug.org.uk/mailman/listinfo Twitter : http://twitter.com/anglianlug Identica: TBA Facebook: http://www.facebook.com/group.php?gid=2381613902 ----- 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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