Re: OpenVPN fails
On 05/10/15 17:05, Reco wrote:
> Hi.
>
> On Mon, Oct 05, 2015 at 04:46:01PM +0100, Tony van der Hoff wrote:
>> On 05/10/15 16:31, Reco wrote:
>>> Hi.
>>>
>>> On Mon, Oct 05, 2015 at 03:51:17PM +0100, Tony van der Hoff wrote:
>>>> Hi,
>>>>
>>>> I have a VPS running up to date wheezy, with an OpenVPN server, and a
>>>> wheezy box at home running an OpenVPN client. this used to work fine
>>>> last year. I haven't had cause to use it much recently, and I now find
>>>> it's died. I don't know when, or what changed to cause the fault.
>>>>
>>>> It appears that the client end is failing to start; running
>>>> openvpn /etc/openvpn/tony-lx.conf ends up with:
>>>>
>>>> Mon Oct 5 15:08:50 2015 ROUTE default_gateway=192.168.1.1
>>>> Mon Oct 5 15:08:50 2015 Note: Cannot open TUN/TAP dev /dev/net/tun: No
>>>> such device (errno=19)
>>> <skip>
>>>> [1267669.932889] tun: Unknown symbol ipv6_proxy_select_ident (err 0)
>>>>
>>>> So, the tun module is failing to load; but now I'm out of ideas to try
>>>> further. Can anyone please point me in the right direction?
>>>
>>> First things first - apparently your tun module is compiled for the
>>> different kernel that you run. Good, stock in-tree kernel modules do
>>> not have unresolved symbols.
>>>
>>> Second, on my system tun.ko definitely references
>>> "ipv6_proxy_select_ident kernel" symbol. Which can only lead to suspect
>>> the kernel.
>>>
>>> Third thing is - unless you manage to convince tun module to load -
>>> openvpn won't function.
>>>
>>> Hence, the questions are:
>>>
>>> 1) Are you using stock/backported Debian kernel on VPS?
>>>
>>> 2) Have you upgraded the kernel since openvpn worked for you?
>>>
>>> 3) Any reboots since then?
>>>
>>> Reco
>>>
>>
>> Thanks for the quick response, Reco.
>>
>> 1. Kernel is stock wheezy:
>> 3.2.0-4-amd64 #1 SMP Debian 3.2.57-3+deb7u2 x86_64 GNU/Linux
>
> But very old one. Current one is 3.2.68-1+deb7u4.
>
> It's a shot in the dark, but - what does this show:
>
> apt-cache policy linux-image-3.2.0-4-amd64
>
Hm, I don't understand what that means, but here it is:
root@tony-lx:~# apt-cache policy linux-image-3.2.0-4-amd64
linux-image-3.2.0-4-amd64:
Installed: 3.2.68-1+deb7u4
Candidate: 3.2.68-1+deb7u4
Version table:
*** 3.2.68-1+deb7u4 0
500 http://security.debian.org/ wheezy/updates/main amd64 Packages
100 /var/lib/dpkg/status
3.2.68-1+deb7u3 0
500 http://ftp.uk.debian.org/debian/ wheezy/main amd64 Packages
apt-get upgrade isn't offering me anything better, so I guess this is
the correct wheezy kernel.
Cheers, Tony
--
Tony van der Hoff | mailto:tony@vanderhoff.org
Buckinghamshire, England |
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