December 2014 - luv-main

Kernel 3.17 no longer allows bonding ppp devices
by Toby Corkindale 18 Nov '15

18 Nov '15

Hi, I hit a problem when attempting to upgrade to kernel 3.17.2 on a particular server. Some time between 3.13 and 3.17, the bonding driver has stopped accepting ppp devices, instead throwing an error that the MAC address cannot be changed. (And does not allow this to be forced) I suspect it's unlikely.. but has anyone here encountered this issue and found a solution? Alternatively.. do you know where the right place to file bug report about this would be? It's been a while since I've filed anything against the linux kernel itself. Cheers, Toby

5 8

Problems booting from DVD-Fedora 20
by Terry Duell 30 Jan '15

30 Jan '15

Hello All, Some months ago I installed a new motherboard (Asus Z97M-Plus UEFI) and an SSD. I installed Fedora 20 on the SSD without any problems (GUID partition table), but had a few issues getting Fedora to boot, either the MB manual or I'm a bit vague...one of the two, maybe both. In the end, using 'other OS' for the secure boot setting worked OK. Yesterday, for the first time since this install I had need to boot from a DVD, and it failed...always falling back to booting the SSD. After some discussions on an Asus site it was suggested that maybe I need to set the MB for IDE controller instead of AHCI, and that disabling 'fast boot' might help. Changing AHCI to IDE didn't help. Disabling 'fast boot' allowed the latest 'Gparted-live' DVD to boot, but still cannot boot older bootable DVDs that I have tried whilst testing this. Anyone have any thoughts on this? Cheers, -- Regards, Terry Duell

2 3

The Hardware Library
by Russell Coker 14 Jan '15

14 Jan '15

Today at the beginners meeting I was asked about donations to the Hardware Library. I think it's worth discussing the matter here. P4 systems and most parts from that era generally aren't useful, systems based around the AMD64 architecture are just too common. AGP video cards aren't useful because they only fit older systems and people who still have such systems in use are usually using them as routers or something. PCI Ethernet cards have some use, 2 port Ethernet cards are useful and 4 port Ethernet cards are VERY useful. RAM from systems of most ages is often useful, and when it isn't useful it's small and light enough that I'm happy to take donations and sort them out later. SATA disks are always useful, even the small ones. Large IDE disks are useful, for IDE 300G is large. All PCIe cards are useful except for NVidia video cards. As an aside if anyone wants an NVidia PCIe card then I'll bring some along. I usually don't carry them around due to driver issues. I will bring the Hardware Library to the BBQ. I know that you are the type of people who want that. ;) -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

5 6

rsync/ssh errors
by Russell Coker 25 Dec '14

25 Dec '14

Received disconnect from 10.0.0.123: 2: Packet corrupt I'm using rsync over ssh to transfer some files over my LAN and I'm getting errors such as the above. The combination of source/target systems is a common one, I'm transferring the same size files that I often transfer without error. The error above has occurred twice in the last hour but never before on those systems (and I don't recall ever seeing it on any systems before - if I have seen it before it was a long time ago). The target system is running Debian/Unstable and the source is running Debian/Wheezy with a kernel from Unstable. The source is a server with ECC RAM, so RAM errors seem improbable and CPU errors don't seem that likely given that it's quality server hardware. The target is a desktop PC that someone discarded, so if this error is due to hardware it would almost certainly be related to the desktop PC. I'll probably run Memetest86+ on the PC soon, I haven't run it for a long time and it doesn't do any harm to do such tests occasionally. Any suggestions for other things I should do? -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

2 1

want apache to return 403 not 401
by James Harper 23 Dec '14

23 Dec '14

In my apache config I currently have the following settings on an svn/dav folder: <LimitExcept GET PROPFIND OPTIONS REPORT> Require user admin Allow From all </LimitExcept> <Limit GET PROPFIND OPTIONS REPORT> Satisfy any Require valid-user Allow from env=ValidXForward Allow from env=NoXForward </Limit> The XForward env's are calculated to determine where the request is coming from (via the proxy etc). So the idea is that from inside, the env= rules allow all GET/PROPFIND/OPTIONS/REPORT requests from internal IP's with no credentials, and also from outside with valid credentials. This works fine. Other requests (not GET/PROPFIND/OPTIONS/REPORT) only work for user admin. The problem is that when another user is specified, apache returns a 401 and the user gets prompted for different credentials. I don't want this. If the user is a valid user but is not allowed access then I want 403 to be returned and the user to get a DENIED. Does anyone know how to make this happen? Thanks James

1 0

building PCs etc
by Russell Coker 22 Dec '14

22 Dec '14

http://www.kidsunlimited.com.au/ This company is offering a course for kids to teach them to build a PC. It costs $1250 and they end up with a PC that's very similar to something that Dell sells for $800, so that makes it about $400 for a day of training (not bad for corporate training rates but not cheap either). Maybe we should offer something vaguely similar at the LUV beginner's meetings. We could make it a BYO hardware event. We could offer free PCs of the P4 vintage (I could donate 2-3 PCs to the cause and I'm sure others could too). Then kids (and anyone else who wants to learn) can install Linux and set the PC up for doing things. The assembling new hardware bit seems like a bad idea as it involves a significant amount of money and issues with getting paid in advance etc. But the amount of learning involved in assembling a PC isn't that great. It's 5-7 separate parts for a typical PC if you consider DIMMs to be 1 part and CPU+fan to be another. Assembling a PC nowadays has the complexity of a Lego kit aimed at 5yos. Taking old PCs apart has some educational value as kids can break open packages and look inside them and they can touch pins on the CPUs etc. If we were going to do an educational PC disassembly event then I'd be happy to take the bits to e-waste and I could donate some broken PCs to the cause. What do you think? Lev, how does this fit in with what we can do at VPAC? -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

11 13

DKIM
by Russell Coker 22 Dec '14

22 Dec '14

Authentication-Results: itmustbe.luv.asn.au; dkim=fail reason="verification failed; insecure key" header.d=coker.com.au header.i=(a)coker.com.au header.b=rEa8/tpR; dkim-adsp=discard (insecure policy); dkim-atps=neutral The above is from the headers of one of the messages I sent to the list. The "insecure key" part refers to the fact that I'm not using DNSSEC. I am now working on installing DNSSEC (which might take some time if my registrar doesn't support it). -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

2 3

Debian package manager question
by Allan Duncan 21 Dec '14

21 Dec '14

I have a corrupt file and wish to find which package it belongs to. In rpm I would do: rpm -qf <file name with full path> What is the equivalent in dpkg etc?

6 8

Re: Debian package manager question
by zlinw＠mcmedia.com.au 21 Dec '14

21 Dec '14

Arjen Lentz said... >Hi Allan >On 21 December 2014 4:55:06 PM AEST, Allan Duncan <amd2345(a)fastmail.com.au> >wrote: >>I have a corrupt file and wish to find which package it belongs to. >> >>In rpm I would do: >> rpm -qf <file name with full path> >> >>What is the equivalent in dpkg etc? >dpkg -S {/path/to/file} In Debian all packages have all files listed in /var/lib/dpkg/info/ file names is whatever_package.list. The command "grep file_name *.list" within the above directory will bring up the file and the name of the package. Lindsay

1 0

wacom tablet
by h 19 Dec '14

19 Dec '14

Hi, I am thinking of adding a tablet to my home desktop linux (opensuse) box. The wacom bamboo range seem to work with linux (http://linuxwacom.sourceforge.net/wiki/index.php/Device_IDs) Does anyone have any experience using tablets (wacom or other) and can they provide any advice? I am also interested if anyone knows of a good local supplier to buy from! With thanks H

2 1