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Re: [Qemu-devel] [PATCH v4 0/6] Efficient VM backup for qemu
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-devel] [PATCH v4 0/6] Efficient VM backup for qemu |
Date: |
Fri, 22 Feb 2013 14:07:11 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130110 Thunderbird/17.0.2 |
Il 22/02/2013 14:02, Dietmar Maurer ha scritto:
>
>>>>> Why is this needed?
>>> Security? I don't want that another process can write nonsense into my
>> backup.
>>
>> They can already write nonsense to your iSCSI target, can't they?
>
> I am more concerned about software bugs. You need to find a free port, and
> then pass that port to kvm. If the original server dies, it is likely that
> another
> process start using the same port ...
Hardly specific to this case, but indeed you're right.
>> But you can always sandbox using SELinux, if you care about that, or use a
>> Unix
>> socket + SCM_CREDENTIALS.
>
> unix sockets works with qemu nbd code?
Sure. nbd+unix:///exportname?socket=path is the new URI syntax, I
honestly forgot the old one. SCM_CREDENTIALS checks (qemu-nbd --pid or
something like that) is not supported, but patches would be very welcome.
Paolo
- Re: [Qemu-devel] [PATCH v4 0/6] Efficient VM backup for qemu, (continued)
- Re: [Qemu-devel] [PATCH v4 0/6] Efficient VM backup for qemu, Dietmar Maurer, 2013/02/21
- Re: [Qemu-devel] [PATCH v4 0/6] Efficient VM backup for qemu, Paolo Bonzini, 2013/02/21
- Re: [Qemu-devel] [PATCH v4 0/6] Efficient VM backup for qemu, Stefan Hajnoczi, 2013/02/22
- Re: [Qemu-devel] [PATCH v4 0/6] Efficient VM backup for qemu, Kevin Wolf, 2013/02/22
- Re: [Qemu-devel] [PATCH v4 0/6] Efficient VM backup for qemu, Stefan Hajnoczi, 2013/02/22
- Re: [Qemu-devel] [PATCH v4 0/6] Efficient VM backup for qemu, Dietmar Maurer, 2013/02/22
- Re: [Qemu-devel] [PATCH v4 0/6] Efficient VM backup for qemu, Paolo Bonzini, 2013/02/22
- Re: [Qemu-devel] [PATCH v4 0/6] Efficient VM backup for qemu, Dietmar Maurer, 2013/02/22
- Re: [Qemu-devel] [PATCH v4 0/6] Efficient VM backup for qemu, Paolo Bonzini, 2013/02/22
- Re: [Qemu-devel] [PATCH v4 0/6] Efficient VM backup for qemu, Dietmar Maurer, 2013/02/22
- Re: [Qemu-devel] [PATCH v4 0/6] Efficient VM backup for qemu,
Paolo Bonzini <=
- Re: [Qemu-devel] [PATCH v4 0/6] Efficient VM backup for qemu, Stefan Hajnoczi, 2013/02/22
- Re: [Qemu-devel] [PATCH v4 0/6] Efficient VM backup for qemu, Dietmar Maurer, 2013/02/22
- Re: [Qemu-devel] [PATCH v4 0/6] Efficient VM backup for qemu, Paolo Bonzini, 2013/02/22
- Re: [Qemu-devel] [PATCH v4 0/6] Efficient VM backup for qemu, Dietmar Maurer, 2013/02/22
- Re: [Qemu-devel] [PATCH v4 0/6] Efficient VM backup for qemu, Paolo Bonzini, 2013/02/22
- Re: [Qemu-devel] [PATCH v4 0/6] Efficient VM backup for qemu, Dietmar Maurer, 2013/02/25
- Re: [Qemu-devel] [PATCH v4 0/6] Efficient VM backup for qemu, Dietmar Maurer, 2013/02/25
- Re: [Qemu-devel] [PATCH v4 0/6] Efficient VM backup for qemu, Dietmar Maurer, 2013/02/23
- Re: [Qemu-devel] [PATCH v4 0/6] Efficient VM backup for qemu, Paolo Bonzini, 2013/02/25
- Re: [Qemu-devel] [PATCH v4 0/6] Efficient VM backup for qemu, Dietmar Maurer, 2013/02/25