- luv-main - example.com

server migration
by Russell Coker 11 Jan '16

11 Jan '16

As previously discussed VPAC no longer officially exists and out hosting there is going to disappear. I have migrated the LUV server to a virtual maching in Germany on the Hetzner network. This gives us plenty of storage, fast Internet access, IPv6, and it's free (courtesy of a German Linux user who is donating the resources). Unfortunately we have some DNS issues. I've got a simple TCP proxy in place for the web server but that doesn't work so well for email as it breaks lots of anti-spam checks. I will use a proxy for the mail server if we don't have DNS sorted out tonight. iptables -t nat -A OUTPUT -d 202.158.218.240 -p tcp --dport 25 -j DNAT --to\ 188.40.100.241:25 If you are eager to send mail to the lists and don't want to wait for me to sort out the DNS problem then run the above command on your outbound mail relay. That will redirect it to the correct destination. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

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free Sun 1RU servers
by Russell Coker 08 Jan '16

08 Jan '16

http://www.cpubenchmark.net/cpu.php?cpu=AMD+Opteron+254&id=1806 We have two 1RU Sun servers which each have 2 of the above CPUs. One server has 16G of RAM and the other has 32G. One of them has 2*70G 15000rpm SAS disks and the other has 2*140G. There is also a spare 70G SAS disk. One of the servers is currently in use as the LUV server but that is to be decommissioned. The other is at my home (we used it for the ZFS and BTRFS training). The servers are extremely noisy which is one of the reasons why I haven't done any other training on the server in my home (the other reason being that I have some other servers for this purpose). NB if someone wants to use these commercially then they can buy them from LUV. But they are free for home or non-commercial use. If I don't get any interest then I'll put the RAM and disks in the hardware library and the rest in e-waste. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

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One Education project and fundraising (was: Castrated netbook (Windows 10 only))
by Peter Ross 07 Jan '16

07 Jan '16

Hi Trent, thanks. I thought of Chromebooks too. It may be an option. That you need a Google account to boot USB is very understandable;-) BTW: I just found this (when looking for open hardware and remembering the OLPC X0 I bought and sponsored ages ago): https://www.indiegogo.com/projects/infinity-a-computer-anyone-can-build-and… , http://www.one-education.org/ Regards Peter

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Re: Castrated netbook (Windows 10 only)
by Nic Baxter 06 Jan '16

06 Jan '16

On 6 Jan 2016 11:25 am, Peter Ross via luv-main <luv-main(a)luv.asn.au> wrote: > > Hi all, > > I bought a Lenovo Ideapad 100S before Christmas. My old netbook is not reliable (loose LVDS connector inside the glued screen frame, it seems) and I need a lightweight and trustworthy laptop when on call. > > So the idea was installing a proper OS on it but the UEFI is castrated to a point that I cannot even boot from USB (after SecureBoot is off). > > "System does not have any USB boot option" I get if I jump through all hoops and restart with USB device chosen Hi Peter This link claims you can disable booting from the hard drive which allows a fallback to usb booting. http://ubuntuforums.org/showthread.php?t=2285585 Cheers Nic

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Re: automatically starting KVM
by Dan062 05 Jan '16

05 Jan '16

On Wed, 23 Dec 2015 21:18:39 -0500 Jason White via luv-main <luv-main(a)luv.asn.au> wrote: > Russell Coker via luv-main <luv-main(a)luv.asn.au> wrote: > > To run KVM virtual machines it seems to be recommended to un virsh which > > requires XML. > > > I've run kvm guests directly, without virsh installed, while also managing > them from the console. Thus, whether you actually need virsh depends on your > requirements and environment. What you are saying is true, But inmho, virsh give you far more control over the VM (eg: snapshots, connecting devices live etc). While you may be able to do the same without virsh, using it to me is much easier, specially if you are doing it remotely. Cheers, Daniel > > _______________________________________________ > luv-main mailing list > luv-main(a)luv.asn.au > http://lists.luv.asn.au/listinfo/luv-main -- dan062 <dan062(a)yahoo.com.au> -- dan062 <dan062(a)yahoo.com.au>

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No networking and no MATE
by David Zuccaro 02 Jan '16

02 Jan '16

I have accidentally removed some packages from a debian system and now I have lost networking and MATE. Can I reinstall the removed packages from the install cd?

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Re: Ian Murdock, father of Debian, dead at 42
by Rick Moen 31 Dec '15

31 Dec '15

Quoting Daniel Jitnah (djitnah(a)greenwareit.com.au) > Is there anyway we can express that directly to those affected? There > seem to be a request to post through Docker? Quoting https://bits.debian.org/2015/12/mourning-ian-murdock.html: His family has asked for privacy during this difficult time and we very much wish to respect that. Within our Debian and the larger Linux community condolences may be sent to in-memoriam-ian(a)debian.org where they will be kept and archived. Respectfully, Rick Moen rick(a)linuxmafia.com

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automatically starting KVM
by Russell Coker 29 Dec '15

29 Dec '15

To run KVM virtual machines it seems to be recommended to un virsh which requires XML. Just having XML isn't necessarily a bad thing (XML is great for machine=>machine communication) but apparently you have to edit it yourself! I've editited XML by hand before and written scripts to do it back when I was working on clustering software which also had the flaw of requiring XML but provided no automated way of creating it. Getting KVM working from the command line is easy enough (for definitions of easy that include a 500 character command). But how do you start it on boot and keep it running? I'm currently using screen to manage KVM sessions and it's not that difficult to script screen to start on boot, but it's a little ugly. Any better ideas? PS A recent update to Xen on Debian resulted in SATA disks not working correctly on one of my systems. If we weren't going to move LUV hosting to another location then I'd convert the LUV server to KVM to avoid the risk of SAS disks having a similar issue. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

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SPF and DKIM checks on mail to the list
by Russell Coker 24 Dec '15

24 Dec '15

The list server is configured to reject mail that fails DKIM or SPF checks. It is not supposed to receive mail from other list servers or forwarding services so there's no reason for mail to fail such checks. If you have a problem with mail from your ISP going to the list then contact me off-list and I'll help you file a bug report. If you have a problem with your own personal domain then I am happy to send you log entries related to your issue and help you debug it. Don't claim that there's something wrong with the LUV server though. If you setup your server to DKIM sign mail and it doesn't do it correctly or setup a SPF entry that doesn't include your sending address then it's your issue. I'm happy to help you solve your issues, just don't claim that they are my issues. While we are having a debate about whether list servers should send out mail that fails DKIM and/or SPF checks I think that there is no reason that a mail server should receive such mail unless it is configured to receive mail from another list server. Of course if a list server receives mail from another list server it should be configured to whitelist such mail. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

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DMARC, SPF and DKIM
by Jason White 24 Dec '15

24 Dec '15

I've spent time today trying to configure SPF, DKIM and DMARC for my domain. Experience will determine how successful I have been. The next step is to configure my mail system, running Postfix, to check inbound mail using these mechanisms. Which tool do others prefer for this purpose? My DMARC record may be too strict; I essentially copied an example from http://www.zytrax.com/books/dns/ch9/dmarc.html (with a slight modification to change the address to which reports are sent). If necessary, I can switch to a "quarantine" rather than a "reject" policy for SPF, DKIM or both. Mailing list servers and their treatment of DKIM would be my main concern, although in such cases, if I understand rightly, the recipient should use the list server's DMARC record to determine the policy rather than mine, since it's the list server which is actually sending the mail out.

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