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IP forwarding
by Mark Rogers 16 Oct '12

16 Oct '12

I have a Linux (Debian on ARM) box on a remote network (IP 192.168.150.100, subnet 255.255.255.0). The Linux box is also running Hamachi VPN software, which has given it an address (5.50.60.177) that I can reach from desktop (via a local Hamachi install). I can therefore ping 5.50.60.177 and SSH to it. I would like to route to the 192.168.150.x network via the working Hamachi connection. To that end I have enabled IP forwarding: $ cat /proc/sys/net/ipv4/ip_forward 1 .. and at the desktop end route -p add 192.168.150.0 mask 255.255.255.0 5.60.70.177 (desktop is Windows because the Hamachi VPN client was already running on it, but I don't think that's relevant to the problem). I am unable to reach either my box via its local address (192.168.150.100) or the rest of the remote LAN. What am I missing? [IP addresses changed to protect the innocent.] 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] 3rd Monday Monthly Ipswich Social Meeting : The Mulberry Tree
by samwise 15 Oct '12

15 Oct '12

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 tonight, 15th October, 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. I'll be along this month, showing off some of my recent holiday snaps on my gigantically huge new Note II phablet. I can probably also bring along a recent presentation I made on Martin Edmondson of Ubisoft Reflections Studio fame (Shadow of the Beast, Demolition Derby, Driver, Stuntman etc.) if anyone's interested, who I was scheduled to be interviewing this past weekend at the Play Expo show in Manchester (which was cancelled at the last minute when the audio-visual suppliers failed to show). If anyone's going to be late, do drop me a message so I know to stick around if it's quiet. 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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jQuery UI problem - anyone here use jQuery?
by Chris Green 11 Oct '12

11 Oct '12

I am trying to get the jQuery UI datepicker to submit a form when I click on one of the days in the datepicker. I can get the datepicker to appear as expected and, if I click on the explicit submit button I have added the post method gets called. However I can't get onSelect to submit the form. I seem to be doing what is described in examples I can find on Google. Can anyone here see the (probably obvious) error? The javascript code in the headers is:- jQuery(function() { jQuery( "#xvpicker" ).datepicker({ onSelect: function (dateText, inst) { jQuery(this).parent('form').submit(); alert("onSelect()");}, dateFormat: "dd/mm/yy"}); }); ... and the HTML form is:- <FORM METHOD=post ACTION="form.php" ID="xyzform" accept-charset="utf-8" enctype="multipart/form-data" > <p>Date: <input type="text" name="xvdate" id="xvpicker"><input type="submit" name="xvsubm"></p> </FORM> Oh, and the alert message *does* pop up when I click on a day in the date picker. So the onSelect: code is executing, it's just that the submit() call doesn't seem to be submitting the form. I have tried using the form ID instead, i.e. jQuery('#xyzform').submit() but this doesn't work either. -- Chris Green

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source code management
by Chris Walker 09 Oct '12

09 Oct '12

I'm still trying to write a program for my phone but I've already got lots of versions of it spread over various filesystems. My son has suggested that I use git and I see that there's an installable version for Mandriva. But before I go ahead and install it, is there anything I should know? I'm not particularly interested in storing the my source code online so I would like to have everything local, either on this 'ere machine or perhaps on a NAS drive. Is this the best approach though?

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[ALUG Announce] ALUG Norwich Pub Meet Thursday 11th October
by Viperfang 08 Oct '12

08 Oct '12

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, 11th 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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Sound Problem
by Michael Goddard 06 Oct '12

06 Oct '12

My ASUS mb P8H6-M LE requires driver/codec for a Realtek ALC887 8-channel HD audio setup - Any help much appreciated.

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I nearly have a VPN working, but I can't get any data through it
by Chris Green 06 Oct '12

06 Oct '12

Well I'm having a wonderful time playing with ideas to access the web server on my eeePc on the boat. My home router is a Draytek Vigor 2820n which has VPN capability itself. So I decided to try it. I can connect using pptp from the eeePc on the boat to the 2820n's VPN service:- root@eeepc:~# pptpsetup --create home --server zbmc.eu --username chris --start Password: Using interface ppp0 Connect: ppp0 <--> /dev/pts/1 CHAP authentication succeeded Cannot determine ethernet address for proxy ARP local IP address 192.168.1.202 remote IP address 192.168.1.1 root@eeepc:~# ... and I can then ping the router from the eeePc OK. However I can't get anything else to work, i.e. I can't seem to get any data across the VPN connection at all. I have tried adding a route at the eeePc end:- root@eeepc:~# route add -net 192.168.1.0 netmask 255.255.255.0 dev ppp0 root@eeepc:~# route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.1.1 * 255.255.255.255 UH 0 0 0 ppp0 84-45-228-40.st 192.168.13.1 255.255.255.255 UGH 0 0 0 eth0 192.168.1.0 * 255.255.255.0 U 0 0 0 ppp0 192.168.13.0 * 255.255.255.0 U 0 0 0 eth0 default 192.168.13.1 0.0.0.0 UG 100 0 0 eth0 root@eeepc:~# but still no joy. root@eeepc:~# ping 192.168.1.1 PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data. 64 bytes from 192.168.1.1: icmp_seq=1 ttl=255 time=82.0 ms 64 bytes from 192.168.1.1: icmp_seq=2 ttl=255 time=76.7 ms 64 bytes from 192.168.1.1: icmp_seq=3 ttl=255 time=79.6 ms 64 bytes from 192.168.1.1: icmp_seq=4 ttl=255 time=77.8 ms 64 bytes from 192.168.1.1: icmp_seq=5 ttl=255 time=76.6 ms 64 bytes from 192.168.1.1: icmp_seq=6 ttl=255 time=74.9 ms ^C --- 192.168.1.1 ping statistics --- 6 packets transmitted, 6 received, 0% packet loss, time 5007ms rtt min/avg/max/mdev = 74.905/77.992/82.087/2.345 ms root@eeepc:~# ping 192.168.1.4 PING 192.168.1.4 (192.168.1.4) 56(84) bytes of data. From 192.168.1.34 icmp_seq=1 Destination Host Unreachable From 192.168.1.34 icmp_seq=2 Destination Host Unreachable From 192.168.1.34 icmp_seq=3 Destination Host Unreachable From 192.168.1.34 icmp_seq=4 Destination Host Unreachable From 192.168.1.34 icmp_seq=5 Destination Host Unreachable From 192.168.1.34 icmp_seq=6 Destination Host Unreachable ^C --- 192.168.1.4 ping statistics --- 7 packets transmitted, 0 received, +6 errors, 100% packet loss, time 6031ms , pipe 3 (the eeePc is on a 192.168.13.0 LAN so the IP addresses shouldn't conflict) Similarly at the other end (my desktop machine) I can see the VPN but I can't push any data through it:- root@chris:~# arp-scan -l Interface: eth0, datalink type: EN10MB (Ethernet) Starting arp-scan 1.8.1 with 256 hosts (http://www.nta-monitor.com/tools/arp-scan/) 192.168.1.1 00:50:7f:8b:35:40 DrayTek Corp. 192.168.1.2 00:01:6c:6c:c7:9b FOXCONN 192.168.1.6 00:04:4b:07:13:30 NVIDIA 192.168.1.84 70:f1:a1:2d:da:86 Liteon Technology Corporation 192.168.1.90 00:90:a9:70:06:ff WESTERN DIGITAL 192.168.1.122 78:ac:c0:63:90:d4 Hewlett Packard 192.168.1.150 00:04:20:26:55:19 Slim Devices, Inc. 192.168.1.202 00:50:7f:8b:35:40 DrayTek Corp. 192.168.1.81 00:01:e3:9d:8b:b5 Siemens AG 9 packets received by filter, 0 packets dropped by kernel Ending arp-scan 1.8.1: 256 hosts scanned in 1.360 seconds (188.24 hosts/sec). 9 responded That 192.168.1.202 is the VPN network IP address on the router, but I can't ping it or anything:- root@chris:~# ping 192.168.1.202 PING 192.168.1.202 (192.168.1.202) 56(84) bytes of data. ^C --- 192.168.1.202 ping statistics --- 4 packets transmitted, 0 received, 100% packet loss, time 3023ms Am I missing something obvious somewhere and/or any ideas how to diagnose what's wrong? -- Chris Green

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Do most/all 'real' SMTP servers follow reasonably retry strategies?
by Chris Green 05 Oct '12

05 Oct '12

As per the subject line, do most SMTP servers (as in systems 'out there' which send me mail) behave reasonably sensibly when my SMTP server is temporarily not functioning? I currently have both a desktop machine *and* a small server machine which are on all the time. It's the server machine that receives my E-Mail. The only reason I have it configured this way is because I'm more likely to rebuild/reconfigure my desktop machine than the server machine and I felt that keeping my SMTP server online consistently was important. However I'm wondering if the effort (and cost) of running two systems all the time is worth it. The other functions of the server system (DNS and CUPS) can easily be run on my desktop machine, occasinal downtime of those services is easily explained to other family members! :-) If real world SMTP servers 'out there' will cope quite happily with my domain's MX machine being AWOL for several hours then I may as well put everything on the one server machine. (Note it's only *my* E-Mail that is delivered by SMTP, all other family members do their own thing as in use Webmail, or IMAP, or whatever) -- Chris Green

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2600 meeting at 18:00 on Friday the 5th October.
by Viperfang 02 Oct '12

02 Oct '12

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

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WiFi range, what am I likely to get outdoors line-of-sight, without special equipment?
by Chris Green 26 Sep '12

26 Sep '12

The subject says it all really, what sort of range is one likely to get outdoors with WiFi? It's basically line of sight, base station is in a shop, my WiFi router will be sitting in a window maybe 200 meters away. Do I have any chance of it working? -- Chris Green

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