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Simple CCTV app
by Mark Rogers 18 Nov '15

18 Nov '15

I have a couple of Wifi IP cameras that I'd like to record output from. I can either capture an image or (I think) an RTSP stream. I just want to store them somewhere I can refer back to them in future if needed. Ideally making efficient use of storage. Any suggestions? At the moment I have ZoneMinder installed but it's quite big and heavy, I frequently find it isn't running (eg after a system update) and it stores all the images as JPEGs rather than as a movie, where I would have thought that the latter would be rather more efficient. It crossed my mind I could probably script something that captured images at a regular frame rate and then turned batches of them into videos later, but there's probably a way to avoid reinventing the wheel. Note: The camera is constantly seeing motion (it's view is through a tree apart from anything else) so motion detection isn't much use unless it can be quite intelligent. -- Mark Rogers // More Solutions Ltd (Peterborough Office) // 0844 251 1450 Registered in England (0456 0902) 21 Drakes Mews, Milton Keynes, MK8 0ER

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Case insensitive scripting
by Chris Walker 15 Nov '15

15 Nov '15

Hopefully somebody can point out my error with a script. This is it =================== #! /bin/bash # Script to extract thumbnails from .ts files for use on a Humax machine set -e # set -x # shopt -s nocasematch for FILE in *.ts do bname=$(basename "$FILE") dir=$(dirname "$FILE") # extension="${bname##*.}" filenamewoext="${bname%.*}" imagefile="${dir}/""${filenamewoext}.png" ffmpeg -i "$FILE" -vframes 1 -ss 00:01:00 -f image2 "$imagefile" done =================== My problem is that I can sometimes have .ts files and others .TS files so how do I persuade bash to search for both case types? As you can see, I've tried setting 'nocasematch' but it's commented out as that doesn't seem to work for me. Searching online produced the 'tr' command but how do I apply that, if indeed it is the correct solution? Any help appreciated. -- __ __| |_ __ __ .----------------------------------------------. / _/ _` \ V V / | mailto:alug_cdw@the-walker-household.co.uk | \__\__,_|\_/\_/ |______________________________________________|

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Has anyone used or know anything about FibreWiFi Limited?
by Chris Green 15 Nov '15

15 Nov '15

While searching around recently for good broadband deals I came across FibreWiFi Limited. They offer direct WiFi (as in microwave based) internet connections. The prices seem quite reasonable, see:- http://www.fibrewifi.com It looks like we should be covered looking at their coverage map. So I'm very interested. Does anyone know anything about them? -- Chris Green

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Mount issues
by Chris Walker 07 Nov '15

07 Nov '15

Hello, Can somebody point me in the right direction please? I'm trying to mount another linux box and although it mounts, I can't write to it which is my desired aim. The box in question is a Humax Freeview machine and I can telnet into it and run commands from the command line and having installed ntfs-3g on it, I can now delete files from an attached usb drive using the screen menu on the device. The files are iPlayer programs which I download here, on my Magiea 5 machine. Before I installed ntfs-3g, the contents of the fstab on the Humaxc looked like this :- /dev/sda1 on /media/drive1 type ntfs (ro,uid=0,gid=0,fmask=0177,dmask=077,nls=utf8,errors=continue,mft_zone_multiplier=1) Afterwards, and after a reboot, it now looks like this :- /dev/sda1 on /media/usb-drive1 type fuseblk (rw,nosuid,nodev,user_id=0,group_id=0,allow_other) As I said, it mounts here but all the files are owned by root and of course I can't copy new files to the USB drive. I can FTP files to the box using humxftp as the user and a password of 0000 so my question is, what should I have in the fstab file on my machine to allow me to read from and write to the usb drive on the Humax? In case you're curious, the relevant line from my fstab is currently this :- //Hummy/media /home/chris/Humax_Fox_HDR/ cifs nosetuids,uid=0,gid=0,credentials=/etc/samba/auth.hummy.humaxftp,sec=ntlm,_netdev 0 0 and the credentials file has two entries for user and password as in the FTP command. Any help appreciated. -- __ __| |_ __ __ .----------------------------------------------. / _/ _` \ V V / | mailto:alug_cdw@the-walker-household.co.uk | \__\__,_|\_/\_/ |______________________________________________|

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2600 meeting at 18:00 on Friday the 6th November.
by Viperfang 03 Nov '15

03 Nov '15

Quick heads up about this months Norwich 2600 meeting, more info at http://www.norwich2600.co.uk

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Cross platform (desktop) event driven comms application development
by Mark Rogers 14 Oct '15

14 Oct '15

I have an application where some software talks via TCP/IP to some hardware but there are issues with the communication. I need to quickly knock together a desktop application (initially running on Windows unfortunately but that's temporary so cross platform is important) that will run on the PC and to start with simply pass the messages back and forth whilst logging them, but will then need to start manipulating the messages as they pass through. So instead of <software> <-> <hardware> I'll have <software> <-> <my app> <-> <hardware> In effect I'm putting together a (legitimate!) man in the middle "attack". What tools would anyone here use? Node.js comes to mind (i have no experience of it). Probably Python with a suitable socket library (again, no experience...). The result needs to be fairly reliable (so will need to sensibly handle dropped connections, and not leak memory or lock up after a few hours/days). Obviously that depends on me doing things right but some tools make that easier than others... My app doesn't need a GUI; a hand edited text file to provide configuration will suffice. But the ability to add one if it becomes useful would be handy. -- Mark Rogers // More Solutions Ltd (Peterborough Office) // 0844 251 1450 Registered in England (0456 0902) 21 Drakes Mews, Milton Keynes, MK8 0ER

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Re: [ALUG] fstab question
by Peter Berrie 08 Oct '15

08 Oct '15

Many thanks to both. I stared at that line over and over again without seeing it! Peter

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How to add a file to a mercurial repository and then push?
by Chris Green 07 Oct '15

07 Oct '15

I have a small mercurial project, local and also on bitbucket. I want to add a .zip of the whole thing and push it to the repository but I can't get it to push. I've created the zip, added it, committed it. So locally all is well:- chris$ hg manifest License.text README.md action.php plugin.info.txt rst.zip syntax.php chris$ However it won't push it:- chris$ hg push pushing to /home/chris/dev/dokuwiki/plugins/rst searching for changes no changes found chris$ So how do I get rst.zip added to the remote repository, it's definitely not there, it's at:- https://bitbucket.org/chrisisbd/dokuwiki-plugin-rst -- Chris Green

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SVN server move
by Mark Rogers 05 Oct '15

05 Oct '15

Another "if only I could work out what to Google for..." question: I had an SVN server on old hardware, which I duplicated to new hardware and updated DNS. Then, from site (the only location any changes get made to the code) I performed a commit. However it turns out that the client had the old server IP in its hosts file (and wasn't using DNS) and was therefore committing to the old server not the new one. This has now been fixed. So what do I need to do from the client to re-send its committed changes to the new server? I believe there was actually only a single commit made if that helps. (The old server is now offline.) Mark -- Mark Rogers // More Solutions Ltd (Peterborough Office) // 0844 251 1450 Registered in England (0456 0902) 21 Drakes Mews, Milton Keynes, MK8 0ER

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[ALUG Announce] ALUG Norwich Pub Meet Thursday 8th October
by Viperfang 05 Oct '15

05 Oct '15

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, 8th October 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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