Am Montag, 7. August 2006 20:24 schrieb Herbert Poetzl:
> On Mon, Aug 07, 2006 at 12:24:54PM +0200, Oliver Heinz wrote:
> > Am Montag, 7. August 2006 11:42 schrieb Oliver Heinz:
> > > Hi there,
> > >
> > > I want to remount temporarily an noexec filesystem (/tmp) that is
> > > mounted in a vserver. I don't want to change the fstab and restart the
> > > vserver, and I don't want to give the vserver the caps to do it from
> > > within.
> > >
> > > I'm sure there is a way to do that from the root-vserver, right?
> > >
> > > Within the vserver it would be a 'mount -o remount,exec /tmp'
> > >
> > > I found the secure-mount command but did not manage to get it to do
> > > what I wanted.
> >
> > Just found that I forgot to add the second part. Same with Network
> > Interfaces, how cann I add/delete an Interface from the outside to a
> > running vserver.
>
> first, with recent devel kernels and proper tools you
> can add ips to a running guest, given that the guest
> already had at least two ips assigned (single ip
> special casing is still there)
Why do I need already two IPs assigned?
>
> now, 'how' to do that depends on the tools you use,
> but basically its a single command which adds or removes
> a single ip ...
I tried a
vnamespace -e service ip addr add 172.29.50.163/24 brd 172.29.50.255 dev eth1
to add an interface to the guest called service
But this is probably the wrong command :-(
I get an additional ip that is shown on the root-vserver
3: eth1: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000
link/ether 00:0e:0c:71:0f:8e brd ff:ff:ff:ff:ff:ff
inet 172.29.50.100/24 brd 172.29.50.255 scope global eth1
inet 172.29.50.199/24 brd 172.29.50.255 scope global secondary eth1
...
inet 172.29.50.163/24 brd 172.29.50.255 scope global secondary eth1
But no new interface is shown inside the guest:
root@gobi:/etc/snappy# vserver service enter
service:/# ip addr show
3: eth1: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000
link/ether 00:0e:0c:71:0f:8e brd ff:ff:ff:ff:ff:ff
inet 172.29.50.199/24 brd 172.29.50.255 scope global secondary eth1
I'm running:
Kernel: 2.6.16.25-vs2.0.2-rc20-grsec2.1.9
VS-API: 0x00020001
util-vserver: 0.30.210; Mar 3 2006, 14:06:42
TIA,
Oliver
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Received on Tue Aug 8 10:09:13 2006