Hey guys,
linux-vserver is a pretty sweet implementation, as it introduces virtually no latency since the vserver runs in a hacked up version of chroot(). There are however some limitations with that approach. Security-wise, it gives the attackers access to (almost) the whole range of syscalls, which could be troubling in some environments. Also, in terms of networking, you can't (to my knowledge) do per-vserver iptables rules, and for your users to change any firewall settings they will have to bug you for things like shaping and so on. In VMware, you have the ability to take live snapshots, which you can later clone, restore or clone for backups (even though if you want better disk performance of your virtual appliance, its recommended to disable snapshots). In vserver, you cant easily do that (you can snapshot filesystems, a best).

That aside, it wont run anything else then Linux. It is also picky about distros, since it needs some init modifications to boot properly.

Regards,
Alex


On Jul 9, 2007, at 4:27 AM, Chaim Keren Tzion wrote:

I ran WindowsXP/Centos/Solaris etc. in VMWare for a long time on an amd64 host. It worked fine with the exception of USB device support (scanner, camera etc). It did have a lot of resource overhead though. I kept a dual boot windows partition around for certain hardware that didn't work well in VMWare, and for BIOS upgrades (the only thing Windows is really usefull, although not required, for.) I am now interested in moving away from vmware because of the overhead. The ease of use of VMWare is only an advantage during the learning curve period of lesser friendly management systems. In the long run, I found that if the system overhead is high (ala VMWare) I will
keep it running less and it will effect my efficiency.

If you are going to do other, linux, virtualization, I would like to recommend vserver. I have a P4 dev machine with 1GB RAM and I run 7 virtual machines on it simultaneously, 24/7. It runs a debian host and debian and centos clients. (On my home system I have even installed a Gentoo client under my Debian
host.)  Overhead is very low. It amazes my friends (and bosses).

On Monday 09 July 2007 08:32:03 Amos Shapira wrote:
On 09/07/07, Eran Sandler <[EMAIL PROTECTED]> wrote:
To give context for my question - I've just bought a Dell desktop based on
Intel Core 2 Duo and installed Debian Etch (amd64) on it,

A bit off topic but why try to install amd64 on an Intel chip? Why not "Intel
IA-64"

Chaim


Cheers,

--Amos


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