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DHCP Error
by steve-alug＠hst.me.uk 21 May '13

21 May '13

Hi folks, I'm confused about another thing too. I have an external backup drive, connected via a network cable. When things boot up, it gets IP addresses for its drives from my dhcp server. This used to work fine. Recently however, I find that the drive's complaining of a "DHCP network addressing problem" (according to the blinking light code!). If, before the drive boots I disable my UFW firewall with sudo ufw disable, then boot the drive, then enable the firewall, everything's OK. If I don't disable the firewall while the drive's getting an IP address, I get the error. I'm running dnsmasq as a dhcp server. My ufw rules are like this $ sudo ufw status Status: active To Action From -- ------ ---- 67 ALLOW 169.254.0.0/16 68 ALLOW 169.254.0.0/16 67 ALLOW 0.0.0.0 68 ALLOW 0.0.0.0 192.168.55.66 ALLOW 192.168.55.0/24 I've omitted 4 rules which open up specific ports, with a format like this as they're not relevant (at least I think they're not relevant) 192.168.55.66 123 ALLOW Anywhere 192.168.55.66 456/tcp ALLOW Anywhere As I understand it, the ports I need to allow access to are 67 and 68. When something asks for an IP address and it hasn't already got one, it broadcasts from the broadcast address 0.0.0.0. Sometimes, a machine will assign itself an IP address in the 169.254.0.0/16 range - e.g. a Windows machine that can't find a DHCP server on the network. If I allow this range then such machines can contact the DHCP server. The final line should allow anything with an address in the range 192.168.55.0 - 192.168.55.255 to contact any port on my server 192.168.55.66, which is where the DHCP server is. It seems to me I must have something wrong with the UFW rules, otherwise why would disabling it allow the drive to get a DCHP lease? What have I got wrong? Any ideas appreciated. Cheers Steve

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Network Engineering
by James Bensley 21 May '13

21 May '13

Hi All, I'm Not sure how many people know about the following here already, and hope fully this isn't against any list etiquette rules; I'm sure many of you use the various Stack Exchange sites, such as http://serverfault.com/, http://stackoverflow.com/, http://unix.stackexchange.com/ and http://askubuntu.com/. Now there is a new site that recently came out of Beta for public access, http://networkengineering.stackexchange.com/. If anyone has networking questions I urge you to sign up and start asking! If the site doesn't get enough traffic in this initial stages it could get shut down, and so far it is proving to be a great well of knowledge. Many thanks, James.

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Network Engineering
by James Bensley 21 May '13

21 May '13

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[ALUG Announce] 3rd Monday Monthly Ipswich Social Meeting : The Mulberry Tree
by samwise 20 May '13

20 May '13

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 today, 20th May, 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. Apologies for the late reminder, I was away all weekend and missed my own reminder reminder!!! 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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Debian linux 3.8 and grub
by Richard Lewis 18 May '13

18 May '13

Hi ALUG, I recently upgraded my Debian unstable system and it included the 3.8 Linux kernel. There seem to be some problems with this kernel and my wireless network card. So I just want to set the old 3.2 kernel as the default boot option for now. However, setting: GRUB_DEFAULT=2 in /etc/default/grub and running update-grub seems not to have taken effect (the 3.8 kernel still gets booted). I notice GRUB now seems to have a new initial menu with just two options (paraphrased): "Boot Debian"; "Advanced Options". Selecting Advanced Options presents the more familiar list of kernels to boot. Where did this new menu come from? Could it be interfering with my GRUB_DEFAULT=2 option? Is there a way to remove it? Or any other suggestions why my default kernel option may not be working? Thanks, Richard -- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Richard Lewis j: ironchicken(a)jabber.earth.li @: lewisrichard http://www.richardlewis.me.uk/ -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

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Claws mailbox over quota?
by Chris Walker 14 May '13

14 May '13

Following a query from Mick, I decided to try importing all my mail from Thunderbird into Claws (v3.8.0) and it's all been going well until I tried to import a mailbox from 2009. The messages in the import folder total 399 and yet there are only 350 in the imported folder. I clicked on the red exclamation mark at the bottom of the Claws window and it tells me '*** IMAP4< Alert: Mailbox is at 99% of quota' but despite searching everywhere I can, I can't find any mention of quotas. Can anybody help please?

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Debian linux 3.8 and grub
by Richard Lewis 12 May '13

12 May '13

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Routers
by Chris Walker 12 May '13

12 May '13

Hello, Does anyone have a need for either one or two BT Home Hubs? They're V2 and I've hacked them to enable use on something other than a BT line. They have 'n' wifi and I've had them working on my Talktalk line as a test. They belonged to one of my sons who moved house and wanted to remove clutter from the new home. Good old Dad will take them! If nobody wants them, I'll bung them on ebay and if nobody there wants them, they'll go for recycling. I'm in Wymondham near Norwich but might be prepared to travel within Norfolk/Suffolk/Cambs.

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Possible Chess moves
by Ted.Harding＠wlandres.net 11 May '13

11 May '13

Greetings All! I have a query. Is there some program which, given a Chess position and which player has the move, can output a (preferably numbered) list of the possible moves for that player in that position? Ideally, it should be possible to enter the position by placing pieces on an image of the board (and to change the position by moving pieces, e.g., after a move, by making the move). With thanks, and best wishes to all, Ted. ------------------------------------------------- E-Mail: (Ted Harding) <Ted.Harding(a)wlandres.net> Date: 11-May-2013 Time: 12:23:02 This message was sent by XFMail -------------------------------------------------

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"Highly visible"
by Max Folker 08 May '13

08 May '13

Hi, I'm new here and would like to come along to the Norwich meeting this Thursday. This page (http://alug.org.uk/PubMeetings) says: "New Members are advised to arrange contact (swapping telephone numbers etc) or ask for us to make ourselves highly visible, so you don't end up sitting at a table full of random strangers who aren't interested in Linux." ...I'm not sure if this is the right place to ask, but yes - if the group could possibly be highly visible that'd be great. Hopefully see you there. : ) - Max

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