Re: TTL expired in transit to qemu virtual machine.
On Mon, 20 Mar 2017, Mimiko wrote:
On 18.03.2017 07:22, Igor Cicimov wrote:
>uname -a
Linux 3.2.0-4-amd64 #1 SMP Debian 3.2.84-1 x86_64 GNU/Linux
That's an really old kernel, I don't start anything virtual these days
without at least 3.13.x kernel.
I regularly do apt-get upgrade, but not to next Debian version. So, how this
kernel be old for Debian 7?
TLDR:
1. I have no clues to offer regarding OP's virtualisation/networking
troubles, but I wish them the best of fortune.
2. OP's kernel version does not look quite current to me, even for
wheezy (debian 7) and it might be a matter of concern (though I claim
no particular expertise).
Longer version:
It is not clear to me whether your question
I regularly do apt-get upgrade, but not to next Debian version. So, how this
kernel be old for Debian 7?
is a request for information, or merely rhetorical (ie, an assertion
that your kernel is in fact current relative to debian 7).
In case you were asking, I'm still using debian 7 too,
$ cat /etc/debian_version
7.11
and, for what it's worth, in case it interests you
$ uname -a
Linux leviathan 3.2.0-4-686-pae #1 SMP Debian 3.2.86-1 i686 GNU/Linux
I notice the version you posted here (3.2.84-1) is slightly older than
mine. If like myself you plan on running the 3.2.0-4-* release for a
while, It might[1] be worth upgrading at least to version 3.2.86-1:
https://security-tracker.debian.org/tracker/CVE-2016-5195
There is also a newer kernel release available, for those who choose
to install it explicitly[3], from the wheezy-backports repository[2],
(see the 3.16.0-0.bpo releases near the end):
$ apt-cache search '^linux-image-*'
linux-image-3.2.0-4-486 - Linux 3.2 for older PCs
linux-image-3.2.0-4-686-pae - Linux 3.2 for modern PCs
linux-image-3.2.0-4-686-pae-dbg - Debugging symbols for Linux 3.2.0-4-686-pae
linux-image-3.2.0-4-amd64 - Linux 3.2 for 64-bit PCs
linux-image-3.2.0-4-rt-686-pae - Linux 3.2 for modern PCs, PREEMPT_RT
linux-image-3.2.0-4-rt-686-pae-dbg - Debugging symbols for Linux 3.2.0-4-rt-686-pae
linux-image-2.6-486 - Linux for older PCs (dummy package)
linux-image-2.6-686 - Linux for modern PCs (dummy package)
linux-image-2.6-686-bigmem - Linux for PCs with 4GB+ RAM (dummy package)
linux-image-2.6-686-pae - Linux for modern PCs (dummy package)
linux-image-2.6-amd64 - Linux for 64-bit PCs (dummy package)
linux-image-486 - Linux for older PCs (meta-package)
linux-image-686 - Linux for modern PCs (dummy package)
linux-image-686-bigmem - Linux for PCs with 4GB+ RAM (dummy package)
linux-image-686-pae - Linux for modern PCs (meta-package)
linux-image-amd64 - Linux for 64-bit PCs (meta-package)
linux-image-rt-686-pae - Linux for modern PCs (meta-package), PREEMPT_RT
linux-image-3.16.0-0.bpo.4-586 - Linux 3.16 for older PCs
linux-image-3.16.0-0.bpo.4-686-pae - Linux 3.16 for modern PCs
linux-image-3.16.0-0.bpo.4-686-pae-dbg - Debugging symbols for Linux 3.16.0-0.bpo.4-686-pae
linux-image-3.16.0-0.bpo.4-amd64 - Linux 3.16 for 64-bit PCs
linux-image-586 - Linux for older PCs (meta-package)
linux-image-686-pae-dbg - Debugging symbols for Linux 686-pae configuration (meta-package)
But regarding backports, do see https://backports.debian.org/FAQ/
| Q: Is there security support for packages from backports.debian.org?
|
| A: Unfortunately not. This is done on a best effort basis by the
| people who track the package, usually the ones who originally did
| upload the package into backports. When security related bugs are
| fixed in Debian unstable the backporter is permitted to upload the
| package from directly there instead of having to wait until the fix
| hits testing. You can see the open issues for wheezy-backports in
| the security tracker (though there may be false positives too, the
| version compare isn't perfect yet)
[1] The security-tracker page for CVE-2016-5195 lists version 78-1 as
'vulnerable', and 86-1 as 'fixed'. It is unclear to me what this
is supposed to say about OP's kernel, which is apparently at 84-1.
[2] https://backports.debian.org/Instructions/#index2h2
[3] https://backports.debian.org/Instructions/#index3h2
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